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PHOSPHORUS PENTASULFIDEICSC: 1407
October 2004
CAS #: 1314-80-3Diphosphorus pentasulfide
Phosphorus sulfide
Thiophosphoric anhydride
UN #: 1340
EINECS #: 215-242-4

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Flammable. Gives off irritating or toxic fumes (or gases) in a fire.  Risk of fire and explosion on contact with water. Finely dispersed particles form explosive mixtures in air.  NO open flames, NO sparks and NO smoking. NO contact with acids or water.  Do NOT expose to friction or shock. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust. Use non-sparking handtools.  Use dry powder, carbon dioxide, dry sand. NO water.   

 PREVENT DISPERSION OF DUST! IN ALL CASES CONSULT A DOCTOR! 
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Sore throat.  Use local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Refer for medical attention. 
Skin Redness. Pain.  Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Redness. Pain. Severe deep burns.  Wear safety goggles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Nausea. Vomiting. Abdominal pain.  Do not eat, drink, or smoke during work.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Remove all ignition sources. Sweep spilled substance into covered dry, sealable containers. Do NOT let this chemical enter the environment. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 4.3; UN Subsidiary Risks: 4.1; UN Pack Group: II 

STORAGE
Separated from incompatible materials. See Chemical Dangers. Dry. Well closed. Keep in a well-ventilated room. 
PACKAGING
 
PHOSPHORUS PENTASULFIDE ICSC: 1407
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
YELLOW-TO-GREEN CRYSTALS WITH CHARACTERISTIC ODOUR. 

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. 

Chemical dangers
Reacts with bases, organic compounds and strong oxidants. Reacts violently with water and acids. This produces hydrogen sulfide (see ICSC 0165) and phosphoric acid (see ICSC 1008). This generates fire and explosion hazard. May decompose explosively on shock, friction or concussion. 

Formula: P2S5
Molecular mass: 222.3
Boiling point: 513-515°C
Melting point: 286-290°C
Density: 2.1 g/cm³
Solubility in water: reaction
Auto-ignition temperature: 142°C
Explosive limits, vol% in air: 0.05-? 


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation and by ingestion. 

Effects of short-term exposure
The substance is corrosive to the eyes. The substance is severely irritating to the skin and respiratory tract. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed. 

Effects of long-term or repeated exposure
 


Occupational exposure limits
TLV: 1 mg/m3, ppm, as TWA; 3 mg/m3 as STEL.
EU-OEL: 1 mg/m3 as TWA 

ENVIRONMENT
This substance may be hazardous to the environment. Special attention should be given to aquatic organisms. 

NOTES
 

ADDITIONAL INFORMATION
  EC Classification
Symbol: F, Xn, N; R: 11-20/22-29-50; S: (2)-61 

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       Toxicological Abbreviations