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- From: Bruce Hamilton <B.Hamilton@irl.cri.nz>
- Newsgroups: sci.chem,sci.answers,news.answers
- Subject: Sci.chem FAQ - Part 1 of 7
- Followup-To: sci.chem
- Date: Thu, 15 Jan 2004 22:06:54 +1300
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- Archive-name: sci/chem-faq/part1
- Posting-Frequency: monthly
- Last-modified: 22 October 1999
- Version: 1.17
-
- FAQ: Sci.chem
- Editor: Bruce Hamilton
- B.Hamilton@irl.cri.nz
-
- This FAQ is posted monthly to the Usenet groups sci.chem, sci.answers and
- news.answers, and the latest version should be obtained from any of those
- groups, or from the Dejanews or Altavista WWW sites that also offer Usenet.
- It can be obtained by FTP from the FAQ archive site at rtfm.mit.edu in the
- pub/usenet-by-hierarchy/sci/chem directory, where other chemistry-related
- FAQs are also archived as ascii files in their sub-directories.
-
- The FAQ is also available, along with many other Usenet FAQs, on the WWW at
- www.faqs.org, in both ascii and simple hypertext formats. Due to propagation
- delays, some WWW and archive sites may not contain all parts of the latest
- version, but a WWW search engine should locate those parts at other sites.
-
- Changes:
-
- - revised WWW sections.
- - updated various email addresses,
- - updated references
-
- ------------------------------
-
- Subject: 1. Dedication
-
- This FAQ is dedicated to the memory of the late Larry Lippman, who departed
- from this group ( and life ) in 1991. His superb posts on a wide range of
- chemical topics were both informative and entertaining. He established the
- sci.chem tradition of friendly, authoritative, and accurate answers to
- many chemistry-related questions.
-
- ------------------------------
-
- Subject: 2. Introduction and Intent.
-
- This FAQ is intended to provide answers to chemistry-related questions that
- have appeared several times in sci.chem. It is also intended to guide the
- curious to written and electronic information sources for the major areas
- of chemistry that are discussed in sci.chem. The curious reader is
- encouraged to explore those treasure-troves, and this FAQ, prior to posting
- their question to sci.chem. I have assumed that most posters will have
- access to institutional or public libraries, and most of the references
- should be available from them, either on the shelves, via private loans
- from staff in chemistry departments, or via library Interloan services.
-
- I have also assumed readers have a basic knowledge of how to use a technical
- library, and how to locate chemistry information sources. If you are lost
- in your library, ask the nearest librarian :-). As sci.chem is a chemistry
- discussion group, posters should have at least used any available basic
- reference texts to ensure their question is coherently presented. The first
- steps are yours, we will then endeavour to help you walk, and perhaps even
- run, safely through the minefields of chemistry :-).
-
- ------------------------------
-
- Subject: 3. Table of Contents
-
- Part 1.
-
- 1. Dedication
-
- 2. Introduction and Intent
-
- 3. Contributors
- Jason Bruce Chin
- Jim Corton
- Neil Flatter
- Bruce Hamilton
- Vince Hamner
- Theodore Heise
- Knut Irgum
- Jim Oliver
- Yogi Shan
- Mark Perks
- Dave Young
-
- 4. Table of Contents
-
- 5. Sci.chem
- 5.1 What topics does sci.chem cover?.
- 5.2 What guidelines are available about posting to sci.chem?.
- 5.3 Should I post my homework question?.
- 5.4 Should I answer an obvious homework question?.
- 5.5 I'm offering or seeking employment. Can I post here?.
- 5.6 Can I post here if my news feed doesn't include the correct group?.
- 5.7 Can I post here if my library doesn't have the specified reference?.
- 5.8 Can I post articles I found in Usenet or on the Internet?.
- 5.9 Should I post the email address of an expert I found?.
- 5.10 Should I post corporate advertising material?.
- 5.11 Should I state why I require the requested information?.
- 5.12 What other chemistry-focused newsgroups exist?.
- 5.13 What questions are best answered elsewhere in Usenet?.
- 5.14 Why is the sci.chem.* hierarchy not rational?.
- 5.15 How do I create a sub-group for my pet topic?.
- 5.16 Where are the sci.chem archives?.
- 5.17 Who was Larry Lippman?.
-
- 6. Common terms and abbreviations frequently used in sci.chem.
- 6.1 Abbreviations used in this FAQ.
- 6.2 Common Terms used in this FAQ.
-
- Part 2.
-
- 7. General Chemistry-related Information on the Internet
- 7.1 How can I access databases such as Chemical Abstracts?.
- * 7.2 What chemistry-related material is on the WWW?.
- 7.3 What information is available commercially on-line?.
- 7.4 What information is available free on-line?.
- 7.5 What chemical patent information is available on-line?.
- 7.6 Which FTP sites contain chemistry-related material?.
- 7.7 What chemistry-focused mailing lists exist?.
- 7.8 How can I contact Chemical Societies electronically?.
- 7.9 How can I contact large chemical companies?.
- 7.10 How can I contact chemical suppliers?.
- 7.11 How can I contact equipment suppliers?.
- 7.12 How can I contact US government agencies?.
- 7.13 Where can I find compilations of science humour?.
- 7.14 Where can I purchase scientific software?.
-
- 8. Laboratory and Chemical Safety Information on the Internet
- 8.1 Where can I find Material Safety Data Sheets?.
- 8.2 Where can I find detailed safety & toxicity data?.
- 8.3 Where can I find occupational exposure limits?.
- 8.4 Where can I find hazard information for a chemical?.
- 8.5 Where can I find laboratory safety guides?.
- 8.6 Where can I find other safety information?.
-
- 9. Traditional ( Non-Internet ) General Chemistry Information Sources
- 9.1 When can I find Chemical Abstracts?.
- 9.2 Where can I obtain chemical patent information?.
- 9.3 Where can I purchase chemicals?.
- 9.4 Where can I purchase laboratory equipment?.
- 9.5 What reference texts should I search first?.
- 9.6 Where can I find physical and spectral properties of chemicals?.
- 9.7 Where can I find production data for commercial chemicals?.
- 9.8 Where can I find the composition of a proprietary chemical?.
- 9.9 Where can I find out about the history of Chemistry?.
- 9.10 Where can I find out about the discovery of an element?.
- 9.11 What inspirational books about chemistry should I read?.
-
- 10. Traditional Laboratory and Chemical Safety Information Sources
- 10.1 Where can I find Material Safety Data Sheets?.
- 10.2 Where can I find detailed safety & toxicity data?.
- 10.3 Where can I find occupational exposure limits?.
- 10.4 Where can I find hazard information for a chemical?.
- 10.5 What is the most poisonous compound?.
- 10.6 Where can I find laboratory safety guides?.
- 10.7 Are contact lenses a hazard in laboratories?.
-
- Part 3.
-
- 11. Traditional Specialist Chemical Information Sources
- 11.1 Where can I find spectral libraries/databases?.
- 11.2 Where can I find polymer chemistry information?.
- 11.3 Where can I find analytical chemistry information?.
- 11.4 Where can I find environmental chemistry information?.
- 11.5 Where can I find physical chemistry information?.
- 11.6 Where can I find inorganic chemistry information?.
- 11.7 Where can I find organic chemistry information?.
- 11.8 Where can I find industrial chemistry information?.
- 11.9 Where can I find pharmaceutical chemistry information?.
-
- 12. Nomenclature
- 12.1 What are CAS Registry Numbers?.
- 12.2 What are the correct names of recently-discovered elements?.
- 12.3 What is the nomenclature system for CFCs/HCFCs/HFCs?.
- 12.4 How can I get the IUPAC chemical name from traditional names?.
- 12.5 What does "omega-3 fatty acids" mean?.
- 12.6 What is Conjugated Linoleic Acid?.
- 12.7 What are "heavy" metals?.
- 12.8 What is the difference between Molarity and Normality?.
- 12.9 Where can I find the composition of common named reagents?.
-
- 13. Illicit and Government-Controlled Substances
- 13.1 What news groups/mailing lists discuss illegal drugs?.
- 13.2 Where can I obtain a list of illegal drugs?.
- 13.3 What is the chemical structure of common illegal drugs?.
- 13.4 How do I obtain chemical information on illegal drugs?.
- 13.5 Where are the synthesis instructions for illegal drugs?.
- 13.6 Should I post detailed recipes for illegal chemicals?.
- 13.7 What news groups/mailing lists discuss explosives?.
- 13.8 What is the chemical structure of common explosives?.
- 13.9 How do I obtain chemical information on common explosives?.
- 13.10 What news groups/mailing lists discuss pyrotechnics?.
-
- 14. Academic Course Information
- ** 14.1 Where do I find information on US courses?.
- ** 14.2 Where do I find information on other nations' courses?.
-
- Part 4.
-
- 15. Chemical Demonstrations
- 15.1 Are there any good compilations of demonstrations?.
- * 15.2 What are good outdoor demonstrations for under 12s?.
- * 15.3 What are good outdoor demonstrations for over 12s?.
- * 15.4 What are good indoor demonstrations for under 12s?.
- * 15.5 What are good indoor demonstrations for over 12s?.
- 15.6 How do I safely perform the Glowing Pickle experiment?.
- 15.7 How do I make Slime?.
-
- 16. Laboratory Procedures
- 16.1 What are the best drying agents for liquids and gases?.
- 16.2 What is the effect of oven drying on volumetric glassware?.
- 16.3 What does the Karl Fischer titration measure?.
- 16.4 What does the Dean and Stark distillation measure?.
- 16.5 What does Kjeldahl nitrogen measure?.
- 16.6 What does a Soxhlet extractor do?.
- 16.7 What is the best method for cleaning glassware?.
-
- 17. Preparation of chemicals
- 17.1 Where do I find laboratory-scale procedures for organics?.
- 17.2 Where do I find laboratory-scale procedures for inorganics?.
- 17.3 Where do I find industrial chemical process details?.
-
- 18. Sensory properties of chemicals
- 18.1 How do light sticks work?, and how can I make one?.
- 18.2 How do hand warmers work?, and how can I make one?.
- 18.3 What are the chemicals that give fruity aromas?.
- 18.4 What is the most obnoxious smelling compound?.
- 18.5 What is the nicest smelling compound?.
-
- Part 5.
-
- 18.6 What is the most bitter compound?.
- 18.7 What is the sweetest compound?.
- 18.8 What salts change the colour of flames?.
- 18.9 What chemicals change colour with heat, light, or pressure?.
-
- 19. Physical properties of chemicals
- 19.1 Rheological properties and terminology
- 19.2 Flammability properties and terminology
- 19.3 Supercritical properties and terminology
- 19.4 Formation of gaseous bubbles in liquids
- 19.5 Why is Mercury a liquid at room temperature?.
-
- 20. Optical properties of chemicals
- 20.1 Refractive Index properties and terminology
- 20.2 Polarimetry properties and terminology
-
- 21. Molecular and Structural Modelling
- 21.1 What hardware do I need to run modelling programmes?.
- 21.2 Where can I find a free modelling programme?.
- 21.3 Where can I find structural databanks?.
- 21.4 Where can I find ChemDraw or ChemWindows?.
-
- 22. Spectroscopic Techniques
- 22.1 Ultra-Violet/Visible properties and terminology
- 22.2 Infra-Red properties and terminology
- 22.3 Nuclear Magnetic Resonance properties and terminology
- 22.4 Mass Spectrometry properties and terminology
- 22.5 X-Ray Fluorescence properties and terminology
- 22.6 X-Ray Diffraction properties and terminology
- 22.7 Fluorescence/Phosphorescence properties and terminology
-
- 23. Chromatographic Techniques
- 23.1 What is Paper Chromatography?.
- 23.2 What is Thin Layer Chromatography?.
- 23.3 What is Gas Chromatography?.
- 23.4 What is Column Chromatography?.
- 23.5 What is High Pressure Liquid Chromatography?.
- 23.6 What is Ion Chromatography?.
- 23.7 What is Gel Permeation Chromatography?.
- 23.8 What is Capillary Electrophoresis?.
- 23.9 How do I degas chromatographic solvents?.
- 23.10 What is chromatographic solvent "polarity"?.
-
- 24. Extraction Techniques
- 24.1 What is Solvent Extraction?.
- 24.2 What is Solid Phase Extraction?.
- 24.3 What is Supercritical Fluid Extraction?.
- 24.4 What traditional process extracted perfume from flower petals?.
-
- 25. Radiochemical Techniques
- ** 25.1 What is radiochemistry?.
-
- Part 6.
-
- 26. Electrochemical Techniques
- 26.1 What is pH?.
- 26.2 How do pH electrodes work?.
- 26.3 What are ion-selective electrodes?.
- 26.4 Who supplies pH and ion-selective electrodes?.
-
- 27. Fuel Chemistry
- 27.1 Where does crude oil come from?.
- 27.2 What are CNG/LPG/gasoline/kerosine/diesel?.
- 27.3 What are oxygenates?.
- 27.4 What is petroleum ether?.
- 27.5 What is naphtha?.
- 27.6 What is white spirits?.
- 27.7 What are biofuels?.
- 27.8 How can I convert cooking oil into diesel fuel?.
-
- 28. Pharmaceutical Chemistry
- ** 28.1 Does Thalidomide racemise in humans?.
-
- 29. Adhesive Chemistry
- **
-
- 30. Polymer Chemistry
- 30.1 How can I simply identify common plastics?.
- 30.2 What do the plastics recycling codes mean? .
-
- 31. Others
- 31.1 How does remote sensing of chemical pollutants work?.
- 31.2 How does a Lava Lamp work?.
- 31.3 How do I make a Lava Lamp?.
- 31.4 What is Goretex?.
- 31.5 What causes an automobile airbag to inflate?.
- 31.6 How hazardous is spilt mercury?.
- 31.7 Did molasses really kill 21 people in Boston?.
- 31.8 What is the active ingredient in mothballs?.
- 31.9 Is vinegar just acetic acid?.
- 31.10 What are the different grades of laboratory water?.
-
- Part 7.
-
- 31.11 What is Sarin nerve gas?.
- 31.12 What are Dioxins?.
- 31.13 What is Red Mercury?.
- 31.14 How do I remove stains and deposits?.
- 31.15 How do I remove rust?.
- 31.16 How do I remove silver tarnish?.
- 31.17 How do I electroplate or anodise materials?.
- 31.18 How fast do solvents pass through human skin?.
- 31.19 What is the pH of Coca-Cola?.
-
- 32. References
-
- ------------------------------
-
- Subject: 5. Sci.chem
-
- 5.1 What topics does sci.chem cover?.
-
- Sci.chem is an unmoderated discussion group, and it covers the discussion
- of all scientific aspects of chemistry. It is not intended to be an
- educational resource that replaces your local library - which should still
- be your first port of call when seeking information. Because sci.chem was
- created in the 1980s, there is no Charter that would define topics for
- discussion in the group, however common sense suggests that posts should be
- focused on aspects of chemistry not discussed elsewhere on Usenet. Newer
- groups in the hierarchy do have Charters.
-
- There are no eligibility requirements, anybody can post to sci.chem, but
- remember that far more people read the groups than actually post. There are
- very many knowledgeable lurkers who prefer to email their assistance, rather
- than publicly post to the group. When posting, it is a good idea to always
- assume that there will be readers who know more about the topic than you,
- but that should not inhibit you from presenting your perception.
-
- There is no talk.chemistry group, consequently discussion often drifts away
- from the narrow focus of the science of chemistry. There are several groups
- that also cover specialist areas ( refer Section 5.12 ), and prospective
- sci.chem posters should check to ensure their post would not be more
- appropriate in one of those groups. Please do not crosspost to all chemistry
- groups, and please do not post to groups that you are not currently reading,
- asking for email replies. When responding to posts in widely-crossposted
- threads, examine the "Newsgroups" line, delete irrelevant groups, and set
- the "Followup-To" header. Posts to cross-posted threads that have no ongoing
- " chemistry " requirement should have the "Followup-To" header diverted back
- to the original group.
-
- Because sci.chem is an unmoderated discussion group inhabited by a diverse
- range of humanity, posted "facts" are not always correct, and may not always
- be corrected, so don't blame us if your teacher marks your answer wrong :-).
-
- 5.2 What guidelines are available about posting to sci.chem?.
-
- Sci.chem is a discussion group, not an alternative to your nearest library.
- We expect posters to have explored some of the chemical resources usually
- available in libraries ( refer Section 9.5 ) and on the Internet ( refer
- Sections 7.2 and 7.4 ) prior to posting questions to the group. Posting basic
- questions, without performing any preliminary work, is likely to invoke posts
- suggesting ( with varying degrees of politeness ) that you visit a library or
- perform a WWW search.
-
- Sci.chem is also not part of a global facility for teachers to point their
- students towards as an alternative to a library. Teachers should not ask
- students to post unsupervised questions to the group as part of assignments.
- Teachers should recognise the positioning of the group as a resource to be
- utilised only if more appropriate resources, such as libraries and Internet
- WWW searches, have failed to identify suitable sources of information. The
- teacher should also use DejaNews to ensure questions have not been answered
- previously on Usenet. Teachers should ensure that students asking a question
- in sci.chem also post, along with the question, a summary of what they have
- discovered so far, and where they have already searched.
-
- Teachers should also realise that sci.chem also reflects the diverse range of
- humanity that can post to it, consequently some posts may not match the image
- of chemistry that they wish to present to their students.
-
- Most of the general guidelines about posting to Usenet that appear in
- news.announce.newusers are also appropriate for sci.chem. It is important
- that the grammar and spelling of posts to sci.chem are of sufficient quality
- to ensure that readers can easily, and unambiguously, understand your
- request or contribution. If a poorly-written post appears, some readers are
- more likely to flame, ridicule, or ignore you, rather than carefully consider
- your request or contribution. Minor typos and spelling errors only require
- cancelling, or a follow-up post correcting the error, if the error is
- likely to create confusion.
-
- If you are posting, or viewing, drawings of chemical structures in ascii,
- please use a fixed-pitch font, otherwise the structure will appear different
- than intended, resulting in confusion. If you are posting via WWW access, or
- posting WWW information, please ensure all HTML markers are removed from your
- posts to the group. Do not post binaries to the group, even if they are
- relevant to a thread. Post them to a binaries group, or make them available
- on the WWW, and post a message to the group pointing to the location.
-
- Please do not use sci.chem for test posts, or to discuss problems with your
- Internet Services Provider, or any other totally irrelevant topics, as there
- are bound to be more appropriate Usenet groups. There are plenty of *.test
- groups which are monitored by programmes providing automated responses to
- confirm that your test post has successfully propagated throughout the
- Internet.
-
- If you believe the "noise" content of sci.chem is too high, learn to use
- the filtering features of your newsreading software. Most software has the
- ability to create killfiles or only display posts that match certain criteria
- - such as the number of groups in the Newsgroups line. Such features can make
- posts from individuals, and much of the widely cross-posted junk, disappear.
- If your software does not support those features, there may be alternative
- software available from your provider.
-
- Please do not post messages complaining about what you perceive as noise in
- the group, as such posts usually just generate additional noise. If you wish,
- you can email posters asking them to desist from posting the material that
- offends you, but don't be surprised if you are also offended by their
- responses.
-
- Some news-reading software can not display, or post, long articles ( like
- this FAQ ), and you may have to ask your system administrator or ISP for
- alternative software. A consistent inability to display large posts is
- usually a problem with your reading software, not a mistake by the posters.
-
- 5.3 Should I post my homework question?.
-
- In general, definitely not. Your homework question is designed to challenge
- you to understand an aspect of chemistry, and your teacher will have
- ensured that there are appropriate resources available to you at your
- institution. The library is always an excellent place to start, and the
- librarians are skilled at finding information - if you ask for assistance.
-
- Before posting to the group, consider if a similar question could have
- arisen in the past, and check DejaNews using relevant keywords. However,
- if you find that the library and other available resources can not fully
- satisfy your curiosity, then carefully outline your problem, list the
- information resources you have investigated, and post only to the most
- appropriate group. If it is the wrong group, somebody will point you to the
- correct one. Do not expect to receive the actual answer, most readers will
- carefully consider your request, and usually frame a response to ensure that
- you need to perform some work before you can answer your own question. The
- most obvious technique is to respond with a similar worked example which is
- sufficiently different to ensure that you can not simply plug in numbers and
- arrive at your correct answer. Often posters will point to specific library
- resources for you to locate and read.
-
- Also, remember that posters are not obliged to provide only correct answers,
- they can deliberately introduce errors to ensure direct copying without
- comprehension results in the wrong answer - it is not their homework :-).
- Teachers can identify dramatic changes in students' writing styles, and a
- quick search using Alta Vista or DejaNews can readily confirm their
- suspicions. Do not expect sensible or accurate responses if you post from
- anonymous servers.
-
- 5.4 Should I answer an obvious homework question?.
-
- In general, definitely not. Teachers will set homework assignments that
- do not require sci.chem responses. The poster was too lazy to consult the
- resources that their teacher would have ensured were available locally, and
- also too lazy to disguise their homework question. Continual answering of
- obvious homework problems will merely attract more homework questions to the
- group from other lazy students.
-
- If the question does have some interesting aspects that you wish to comment
- on, then the best course of action is to respond by answering a similar
- question. If you change the question sufficiently, the poster will have to
- understand the concepts you are offering, and then apply them to the
- original question. This approach does require a little more effort and
- imagination on your part, but it also encourages any interested students,
- whilst also discouraging any lazy students.
-
- In some homework questions, a small hint may be useful to point the student
- towards a reference, or the correct answer, especially if their post
- indicates that they are completely off-course. Hints are also a very useful
- technique when you can not decide if posts are slightly modified homework
- questions.
-
- Some questions about chemicals in the home and workplace may arise from
- curious adults who don't have a formal chemical education, and such questions
- are certainly appropriate for sci.chem - so please ensure that the question
- is actually a homework question before igniting your flamethrower.
-
- 5.5 I'm offering or seeking employment. Can I post here?.
-
- Sci.chem is the most popular chemistry-related group, and thus would provide
- the largest target audience. However, the appropriate group for advertising
- vacancies and seeking employment is misc.jobs.fields.chemistry. Please post
- CVs, Resumes, and Job Descriptions there, and frequently review the group.
- Misc.jobs.fields.chemistry will have a very small readership, so it may be
- worthwhile for those offering employment to also select a few relevant groups
- and post a brief pointer to the post listing essential information. If you
- have posted your resume or CV to m.j.f.c, then you just have to wait and hope
- those with vacancies are reviewing the group. Do not post pointers to your CV
- or Resume to other groups. Posting your CV/Resume to sci.chem may annoy some
- readers who could be prospective employers in the future, so you have to
- assume that those currently offering employment will review m.j.f.c. Also,
- remember that all posts ( including CVs and Resumes posted to m.j.f.c ) may
- be archived at sites such as DejaNews, and thus available for scrutiny by
- future employers, unless you use the X-No-Archive header.
-
- 5.6 Can I post here if my newsfeed doesn't include the correct group?.
-
- No. The onus is on you to obtain access to the correct group. As hard disk
- storage prices are plummeting, you should be able to encourage your access
- provider to carry more groups :-). If your employer restricts you to sci.*
- comp.* and other boring groups, you may have to seek out a commercial
- access provider. Be assured that you are not the first to encounter this
- problem, and there are various ways you can access newsgroups using other
- Internet facilities besides direct Usenet access. Check out the news.*
- groups for information on alternative methods of Usenet access.
-
- 5.7 Can I post here if my library doesn't have the specified reference?.
-
- No. Once again the onus is on you to obtain the texts. We have tried to
- ensure that there are several choices to help minimise the problem. The
- advantage of expending effort to obtain the reference is that it is likely
- to provide a more comprehensive answer, and will enhance your understanding
- of the subject. If the reference is obscure, then a carefully-constructed
- post requesting the specific information you require is acceptable, but
- you should also state that you have tried to obtain the information, and
- perhaps suggest email replies if you believe other readers will not be
- interested. Chemistry teachers and other chemistry professionals may also
- have their personal copies of some of the reference texts, and may permit
- you to use their copy, if asked politely.
-
- 5.8 Can I post articles I found in Usenet or on the Internet?.
-
- No. Most countries have signed the Berne Convention, and adjusted their
- national laws to reflect the concept that copyright ownership is the
- property of the author of any piece of work. Thus any redistribution or
- reproduction of that work has to have the author's express permission.
-
- The act of posting to Usenet does carry an implicit acknowledgment that
- followup articles will requote parts of the original for clarity, and
- perhaps will be subsequently crossposted to additional groups and archived
- at DejaNews or other archive sites. If an author of a post or article does
- not want their post archived, your software may permit you to select the
- "X-No-Archive" header and, if the software does not support that header,
- you can also add it manually as the first line of a post, but some archive
- sites may still ignore that header and archive the post.
-
- The copyright of the article is still owned by the original author, and
- consent is required before distribution extends outside of Usenet - including
- placing it on the WWW. Most posters will readily give permission if asked.
- Commercial WWW sites also have specific copyright notices just to remind
- readers that the material can not be redistributed. "Fair Use" is a very
- specific and limited concept, and does not permit significant copying of
- copyrighted material - it expects the user to selectively edit and repost
- only the minimum necessary material. Two FAQs ("Copyright Myths" and the
- more detailed "Copyright" ) are posted to news.newusers.questions,
- news.admin.misc, and some other groups that discuss intellectual property.
-
- 5.9 Should I post the email address of an expert I found?.
-
- Not without their consent. Email the expert and ask if you can identify them
- in sci.chem. In general, people who email information to you will want
- complete control over their exposure on Usenet. Often they do not want a
- lot of email requesting assistance, and in some countries ( such as New
- Zealand ) people have to pay for both incoming and outgoing email. If the
- email address is posted publicly - as in this FAQ, email the person and ask
- if you can repost their address in a different forum.
-
- When sending unsolicited email, remember that you are accosting a stranger,
- and he/she is not required to respond, although most will respond to polite
- requests.
-
- 5.10 Should I post corporate advertising material?.
-
- No. Sci.chem is a discussion group. However, if your corporate material will
- help resolve an issue being discussed, post a brief note pointing to where
- the information can be obtained. If you believe that knowledge of your
- corporation would help Internet users, you should arrange a World Wide Web
- home page or email address, and then ensure the address is included in
- compilations of chemistry-related material available on the Internet.
- Continual repeat posting of inappropriate commercial material is likely to
- annoy sci.chem readers. One method of raising the profile of your site is to
- add a pointer to your signature file, and make useful contributions to
- relevant discussions. Some readers may then visit the site out of curiosity.
-
- 5.11 Should I state why I require the requested information?.
-
- Generally, yes. Knowing why somebody is requesting information often helps
- those considering responding to the request. It also helps to ensure that
- responses will help solve the problem, rather than lead off on a tangent,
- interesting though it may become. You should also indicate your level of
- expertise, and where you have looked, as that prevents well-intentioned
- people wasting time suggesting sources you have already tried.
-
- If you require the information for a commercial or historical enterprise,
- you should alway state that. The ability to download and edit information
- is even more convenient than photocopying, and original copyright can easily
- be inadvertently omitted. If you note that there may be a possible commercial
- outcome, responders will try to ensure that the original source is fully
- credited. A polite request to the copyright owner will usually result in
- approval for your enterprise.
-
- 5.12 What other chemistry-focused newsgroups exist?.
-
- Sci.chem is the most popular group covering diverse chemistry topics.
- Other chemistry-focused groups include;-
- alt.drugs.chemistry - discusses the chemistry of all drugs.
- misc.jobs.fields.chemistry - chemistry employment opportunities.
- rec.drugs.chemistry - discusses the chemistry of recreational drugs.
- sci.chem.analytical - discusses analytical chemistry.
- sci.chem.coatings - discusses all aspects of surface coatings.
- sci.chem.electrochem - discusses electrochemistry topics
- sci.chem.electrochem.battery - discusses electrochemical cells.
- sci.chem.labware - discusses laboratory equipment.
- sci.chem.organomet - discusses organometallic chemistry.
- sci.chem.organic.synthesis - discusses organic synthesis - moderated.
- sci.engr.chem - discusses chemical engineering and industrial chemistry.
- sci.techniques.mag-resonance - discusses magnetic resonance.
- sci.techniques.mass-spec - discusses mass spectrometry.
- sci.techniques.xtallography - discusses crystallography
-
- Other groups cover specific topics that also have significant chemistry
- components, including:-
- alt.drugs.* - discusses all drugs.
- rec.drugs.* - discusses recreational drugs.
- rec.pyrotechnics - discusses pyrotechnics.
- alt.cesium - cesium is discussed, along with much else.
- soc.history.science - the history of science, including chemistry.
-
- There are also chemistry groups in many national hierarchies. Some of these
- groups are distributed fairly widely, and may be available from your ISP,
- even though they may be in a language other than English.
-
- There are also several other chemistry-related FAQs available, including
- the sci.chem.electrochem FAQ maintained by Zoltan Nagy, and the Mass
- Spectrometry Internet Resources FAQ maintained by Kermit Murray.
-
- 5.13 What questions are best answered elsewhere in Usenet?.
-
- a. Anything concerning Usenet and Internet abuse, guidelines or behaviour.
- - Start in the news.* hierarchy, such as news.admin.net-abuse.misc.
-
- b. Anything concerning the provision of Internet services by your provider.
- - Start in the specific, in-house, discussion groups - this includes
- any apparent, sudden lack of posts in sci.chem.
-
- c. Anything concerning illicit drugs.
- - Start in the alt.drugs.* hierarchy and the rec.drugs.chemistry group,
- as the various FAQs point to diverse chemical information sources.
- - Refer to sections 13.1 - 13.6 of this FAQ for some available choices.
-
- d. Anything concerning Ludwig/Archimedes Plutonium.
- - Start at sci.physics, as they directed him to sci.chem :-). If you don't
- like his posts, killfile him. Please don't start a campaign to remove
- him, as all that happens is the group usually get flooded with junk.
- For those interested in his theories, try the following WWW site.
- http://www.newphys.se/elektromagnum/physics/LudwigPlutonium/
-
- e. Anything concerning bubbles in newly-opened drinks.
- - Start with sci.physics, the solubility behaviour of dissolved gases when
- the pressure is reduced is predominantly a physical effect, although
- section 19.4 briefly touches on the subject.
-
- f. Anything scientific concerning the Ozone Hole and Climate Change.
- - Start with sci.environment, in particular with Robert Parson's superb
- FAQ on ozone, and Jan Scloerer's Climate Change - The Basics, both
- available at the rtfm.mit.edu FTP site for Usenet FAQs. Non-scientific
- discussions should always be moved to talk.environment.
-
- g. Anything concerning explosives.
- - Refer to sections 13.7 - 13.10 of this FAQ for the available choices.
-
- 5.14 Why is the sci.chem.* hierarchy not rational?.
-
- As the sci.chem group has up to 80 posts/day, some specialists believe they
- would be better served having their own group. They draft a charter, submit
- it to the news.advice group, who ensure it is consistent with the overall
- structure of Usenet and, after discussion, the group is voted on. If the
- group passes it is created. Groups appear only if some motivated people
- arrange to form them. That is why the structure is not rational.
-
- There is currently no formal structural plan for the hierarchy and, given
- the diverse nature of current contributions, it is proving difficult to
- develop such a plan - as no one wishes to compromise the diversity of
- sci.chem. If you learn to use the features of your newsreader correctly,
- the current size of sci.chem is easily handled, and most threads of interest
- can be captured as they pass.
-
- 5.15 How do I create a sub-group for my pet topic?.
-
- First of all, discuss your idea extensively in sci.chem and other relevant
- groups and mailing lists, ensure you have sufficient support for your
- proposal, and take note of all comments, whether positive or negative.
- The next stages are well documented in a FAQ available in news.groups.
- Basically, you email group-advice@uunet.uu.net, who will help you prepare
- the charter and Request For Discussion, and may even provide a mentor to
- guide you through the process.
-
- If the proposal has an additional vote that could affect another group by
- renaming or changing the hierarchy, return to that group and consult the
- participants to ensure there is support for any proposed changes prior
- to issuing the RFD. Group advice is not mandatory, so if the added vote
- is contentious, drop it. Post the RFD twice, and remind people to ensure
- they cross post to news.groups, even if they do not read that group, as
- that is where all post-RFD discussion is supposed to occur. Take note of
- the discussion in news.groups and other groups where you posted the RFD,
- and modify the RFD, if appropriate, and post it again. Then follow the
- guidelines for the actual vote, others will administer the vote and create
- the groups, if they pass.
-
- 5.16 Where are the sci.chem archives?.
-
- Given the nature, number, and diversity of sci.chem posts, no formal
- archives exist, however the Usenet archives at DejaNews on the WWW will
- contain most of the articles for the last couple of years,
- http://www.dejanews.com/
- There are also several other WWW sites that offer access to, and
- keyword searching of, recent Usenet posts. One site is Alta Vista.
- http://altavista.digital.com/
-
- The total number of articles that you will see in sci.chem will depend
- on how your system administrators have set the News system. If they set
- a short Expire time, and set the software to ignore the Expiry date line,
- you may actually miss some articles that have long propagation times.
-
- The best solution is to politely ask the administrators to increase the
- Expire time - usually they are more sympathetic to requests to increase
- Sci.* expire times than they are to requests for longer Alt.* expire times.
- Sometimes they just can't oblige, so you may have to read the group more
- frequently, but please check DejaNews before posting requests for old
- articles.
-
- It should also be remembered that Usenet archive sites like DejaNews
- will retain all of your posts - unless you set the "X-No-Archive" header
- appropriately. Some posting software does not have the facility to set
- such headers, but it can be added manually to the first line of a post.
- It has been reported that some employers now review such archive sites for
- posts when evaluating job applications. Although DejaNews honours the
- "X-No-Archive" header, that does not mean that all archiving sites will,
- so your posts may still be hiding somewhere on the Internet.
-
- 5.17 Who was Larry Lippman?.
-
- When sci.chem was formed (1988?), there were only a few posts per week, and
- a considerable number were requests for information. Larry Lippman soon
- established his superb practical and theoretical chemical credentials, and
- set about responding to those plaintive pleas for information. His posts
- were excellent examples of informative, educational responses delivered in
- a friendly, helpful style. His posts demonstrated how knowledgeable sci.chem
- posters could respond to requests in such a way that all readers would
- understand, regardless of formal chemical training. He died in late 1991
- in his early 40s. Unfortunately, only a few of his posts to sci.chem have
- survived. If you have any of his posts I would appreciate a copy, as I am
- collecting them to be made available as a single "Lippman posts" file.
-
- ------------------------------
-
- Subject: 6. Common terms and abbreviations frequently used in sci.chem.
-
- 6.1 Abbreviations used in this FAQ and sci.chem
-
- ACGIH = American Conference of Governmental Industrial Hygienists
- ACS = American Chemical Society
- AOAC = Association of Official Analytical Chemists
- AOCS = American Oil Chemists Society
- APHA = American Public Health Association
- API = American Petroleum Institute
- ASTM = American Society for Testing Materials
- BP = British Pharmacopoeia
- CA = Chemical Abstracts
- CAS RN = Chemical Abstracts Service Registry Number ( usually as [x.y.z] ).
- C&EN = Chemical & Engineering News ( journal )
- CMR = Chemical Marketing Reporter ( journal )
- DIN = Deutsches Institut fur Normung
- EP = European Pharmacopoeia
- GMP = Good Manufacturing Practice
- IP = Institute of Petroleum
- IPCC = Intergovernmental Panel on Climate Change
- ISO = International Standards Organisation
- ISO 9000 = The 9000 series (esp.9001) Quality System Standards
- MSDS = Material Safety Data Sheet
- RTECS = Registry of Toxic Effects of Chemical Substances
- TLV = Threshold Limit Value ( defined by the ACGIH )
- USP = United States Pharmacopoeia
-
- 6.2 Common Terms used in this FAQ.
-
- These terms apply to well-known reference texts. Note that those with a "*"
- are also available from commercial database suppliers and/or as CD-ROMs.
- The electronic versions may be accessible via an institution library, if the
- library does not have the hardcopy version available.
- * Beilstein = Handbuch der Organischen Chemie [1].
- * Bretherick = Handbook of Reactive Chemical Hazards [2].
- * Chem.Abs. = Chemical Abstracts [3].
- Cotton and Wilkinson = Advanced Inorganic Chemistry [4].
- Fieser & Fieser - Reagents for Organic Synthesis [5].
- * Gardner = Chemical Synonyms and Trade Names [6].
- Gmelin = Handbuch der Anorganischen Chemie [7].
- Goodman & Gilman = The Pharmacological Basis of Therapeutics [8].
- * Hawley = Condensed Chemical Dictionary [9].
- * Heilbron = Dictionary of Organic Compounds [10].
- * Kirk Othmer = Kirk Othmer Encyclopedia of Chemical Technology [11].
- Lange = Handbook of Chemistry [12].
- * Martindale = The Extra Pharmacopoeia [13].
- McKetta = Encyclopedia of Chemical Processing and Design [14].
- Mellor = Comprehensive Treatise on Inorganic and Theoretical Chemistry [15].
- * Merck = The Merck Index [16].
- Perry = The Chemical Engineers' Handbook [17].
- * RTECS = Registry of Toxic Effects of Chemical Substances [18].
- Rubber Handbook = CRC Handbook of Chemistry & Physics [19].
- * Sax = Dangerous Properties of Industrial Chemicals [20].
- Shreve = The Chemical Process Industries [21].
- Ullmann = Encyclopedia of Industrial Chemistry [22].
- Vogel = "Inorganic" = Quantitative Inorganic Analysis [23].
- = "Qualitative Inorganic" = Qualitative Inorganic Analysis [24].
- = "Organic" = Practical Organic Chemistry [25].
- = "EPOC" = Elementary Practical Organic Chemistry [26].
-
- ------------------------------
-