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SULFUR
ICSC: 1166
Peer-Review Status: 04.11.2000 Validated
Flowers of sulfur
Flour sulfur
Brimstone 
CAS #: 7704-34-9 RTECS #: WS4250000
UN #: 1350
EINECS #: 231-722-6
    Formula: S or S8
Molecular mass: 256.5 (S_8) Atomic mass: 32.1

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible.  NO open flames, NO sparks and NO smoking.  Use water spray. Use foam. Use powder. Use dry sand. 
EXPLOSION Finely dispersed particles form explosive mixtures in air.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent deposition of dust. 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.  Use 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.  Wear safety goggles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Burning sensation. Diarrhoea.  Do not eat, drink, or smoke during work.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.   
EC Classification
 
UN Classification
UN Hazard Class: 4.1; UN Pack Group: III 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-115A.
NFPA Code: H1; F1; R0. 
Fireproof. Separated from strong oxidants. 

IMPORTANT DATA
Physical State; Appearance
YELLOW SOLID IN VARIOUS FORMS. 

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 toxic and corrosive gases of sulfur oxides including sulfur dioxide (see ICSC 0074). Reacts violently with strong oxidants , especially if powdered. This generates fire and explosion hazard. 

Occupational exposure limits
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 is irritating to the eyes, skin and respiratory tract. Inhalation of the powder may cause inflammation of the nose and 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. This may result in chronic bronchitis. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 445°C
Melting point: 120°C (amorphous)
Melting point: 107°C (r-sulfur)
Melting point: 115°C (beta-sulfur)
Density: 2.1 g/cm³
Solubility in water: none
Flash point: 160°C c.c.
Auto-ignition temperature: 232°C
Explosive limits, vol% in air: 35-1400 
 

NOTES
Often transported in molten state (UN 2448; TEC(R)-115).
Molten sulfur reacts with hydrocarbons to form toxic and flammable gases.
Depending on the degree of exposure, periodic medical examination is indicated. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.
    See Also:
       Toxicological Abbreviations