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SODIUM SULFIDE (ANHYDROUS)ICSC: 1047
Sodium monosulfide
Sodium sulphide
October 2002
CAS #: 1313-82-2
UN #: 1385
EC Number: 215-211-5

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.    NO open flames, NO sparks and NO smoking. NO contact with acids or oxidizing agents.    Use water in large amounts, water spray, foam, dry powder.   

 AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR! 
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Burning sensation. Laboured breathing. Shortness of breath. Sore throat.  Use closed system or ventilation.  Fresh air, rest. Refer for medical attention. 
Skin Redness. Pain. Skin burns. Blisters.  Protective gloves. Protective clothing.  First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer for medical attention . 
Eyes Redness. Pain. Blurred vision. Severe deep burns.  Wear face shield or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Burning sensation. Shock or collapse.  Do not eat, drink, or smoke during work.  Do NOT induce vomiting. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Remove all ignition sources. Cover the spilled material with dry earth or sand. Sweep spilled substance into covered containers. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT let this chemical enter the environment. Personal protection: chemical protection suit including self-contained breathing apparatus. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 4.2; UN Pack Group: II 

STORAGE
Separated from acids and oxidants. Keep in a well-ventilated room. Dry. 
PACKAGING
Airtight. 
SODIUM SULFIDE (ANHYDROUS) ICSC: 1047
PHYSICAL & CHEMICAL INFORMATION

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

Physical dangers
 

Chemical dangers
Decomposes on burning. Decomposes on contact with acids or water. This produces toxic and corrosive gases. This increases fire hazard. The solution in water is a strong base. It reacts violently with acid and is corrosive. Reacts violently with oxidants. 

Formula: Na2S
Molecular mass: 78.04
Decomposes at 920-950°C
Density: 1.86 g/cm³
Auto-ignition temperature: >480°C
Octanol/water partition coefficient as log Pow: -3.5  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. 

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

Effects of long-term or repeated exposure
 


OCCUPATIONAL EXPOSURE LIMITS
 

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

NOTES
Other UN number: 1849, sodium sulfide, hydrated with 30% or more water, hazard class 8, packaging group II.
Other melting points: 1180°C in vacuum. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: C, N; R: 31-34-50; S: (1/2)-26-45-61 

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    See Also:
       Toxicological Abbreviations