International Chemical Safety Cards

DIMETHYL SULFIDE ICSC: 0878
DIMETHYL SULFIDE
Methyl sulfide
DMS
C2H6S/(CH3)2S
Molecular mass: 62.1
CAS # 75-18-3
RTECS # PV5075000
ICSC # 0878
UN # 1164
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Extremely flammable. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames, NO sparks, and NO smoking.
Powder, AFFF, foam, carbon dioxide.
EXPLOSION Vapour/air mixtures are explosive.
Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling. Use non-sparking handtools.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE


  • INHALATION
    		• Unconsciousness.
    		Ventilation.
    		Fresh air, rest. Artificial respiration if indicated. Refer for medical attention.
  • SKIN

    		• Protective gloves.
    		Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
  • EYES

    		• Safety spectacles.
    		First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
  • INGESTION

    		• Do not eat, drink, or smoke during work.
    		Rinse mouth. Refer for medical attention.
    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Evacuate danger area! Consult an expert! Ventilation. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT wash away into sewer (extra personal protection: self-contained breathing apparatus).
    		Fireproof. Separated from strong oxidants. Cool.
    		Unbreakable packaging; put breakable packaging into closed unbreakable container.
    UN Hazard Class: 3
    UN Packing Group: I
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0878 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

    International Chemical Safety Cards

    DIMETHYL SULFIDE ICSC: 0878

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    PHYSICAL STATE; APPEARANCE:
     COLOURLESS TO YELLOW LIQUID , WITH CHARACTERISTIC ODOUR.

    PHYSICAL DANGERS:
     The vapour is heavier than air and may travel along the ground; distant ignition possible.

    CHEMICAL DANGERS:
     The substance decomposes on heating and on burning producing toxic and corrosive fumes (hydrogen sulfide and sulphur oxides). Reacts violently with strong oxidants causing fire and explosion hazard.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV not established.


    		ROUTES OF EXPOSURE:
     The substance can be absorbed into the body by inhalation of its vapour and by ingestion.

    INHALATION RISK:
     No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20░C.

    EFFECTS OF SHORT-TERM EXPOSURE:
     Exposure may result in unconsciousness.

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
    PHYSICAL
    PROPERTIES
    Boiling point: 37░C
    Melting point: -98░C
    Relative density (water = 1): 0.85
    Solubility in water: poor (0.6 g/100 ml)
    Relative vapour density (air = 1): 2.14
    		 Relative density of the vapour/air-mixture at 20░C (air = 1): 1.6
    Flash point: -38░C
    Auto-ignition temperature: 206░C
    Explosive limits, vol% in air: 2.2-19.7
    ENVIRONMENTAL
    DATA
    NOTES
    High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death.
    Transport Emergency Card: TEC (R)-30G34
    NFPA Code: H 2; F 4; R 0;
    ADDITIONAL INFORMATION


    ICSC: 0878 DIMETHYL SULFIDE
    © IPCS, CEC, 1993
    IMPORTANT LEGAL NOTICE: Neither the CEC or the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use.