International Chemical Safety Cards

SULFUR ICSC: 1166

SULFUR
Flowers of sulfur
Flour sulfur
S
Atomic mass: 32.1
Molecular mass: 256.5 (S8)
CAS # 7704-34-9
RTECS # WS4250000
ICSC # 1166
UN # 1350
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Combustible.
NO open flames, NO sparks, and NO smoking.
Water spray. Foam. Powder. Dry sand.
EXPLOSION Finely dispersed particles form explosive mixtures in air.
Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding).
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
PREVENT DISPERSION OF DUST!

  • INHALATION
    		• Burning sensation. Cough. Sore throat.
    		Local exhaust or breathing protection.
    		Fresh air, rest. Half-upright position. Refer for medical attention.
  • SKIN
    		• Redness.
    		Protective gloves.
    		Remove contaminated clothes. Rinse skin with plenty of water or shower.
  • EYES
    		• Redness. Pain. Blurred vision.
    		Safety goggles.
    		First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
  • INGESTION
    		• Burning sensation. Diarrhoea.
    		Do not eat, drink, or smoke during work.
    		Rinse mouth. Refer for medical attention.
    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Sweep spilled substance into containers. Dampen and sweep gently to avoid raising dust (extra personal protection: P1 filter respirator for inert particles).
    		Fireproof. Separated from strong oxidants.

    UN Haz Class: 4.1
    UN Pack Group: III
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 1166 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993 No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and IDLH values.

    International Chemical Safety Cards

    SULFUR ICSC: 1166

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    PHYSICAL STATE; APPEARANCE:
     YELLOW POWDER.

    PHYSICAL DANGERS:
     Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.

    CHEMICAL DANGERS:
     On combustion, forms sulfur oxides including sulfur dioxide (see ICSC # 0074). 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 and by ingestion.

    INHALATION RISK:
     Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

    EFFECTS OF SHORT-TERM EXPOSURE:
     The substance irritates the eyes, the skin and the respiratory tract. Inhalation of powder of this substance may cause inflammation of the nose and the respiratory tract.

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
     Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the respiratory tract , resulting in chronic bronchitis.
    PHYSICAL
    PROPERTIES
    Boiling point: 445°C
    Melting point: 113-120°C
    Relative density (water = 1): 2.1
    Solubility in water: none
    		 Flash point: 207°C
    Auto-ignition temperature: 232°C
    Explosive limits, vol% in air: 35-1400 g/m3
    ENVIRONMENTAL
    DATA
    NOTES
    Often transported in molten state (UN 2448; TEC(R)-115). Depending on the degree of exposure, periodic medical examination is indicated.
    Transport Emergency Card: TEC (R)-115A
    NFPA Code: H 1; F 1; R 0
    ADDITIONAL INFORMATION


    ICSC: 1166 SULFUR
    © IPCS, CEC, 1993
    IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, 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. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and IDLH values.