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AMMMONIUM BISULFITEICSC: 1254
Sulfurous acid, monoammonium salt
Ammonium hydrogen sulfite
March 1995
CAS #: 10192-30-0
UN #: 2693 (bisulfites, aqueous solution)
EC Number: 233-469-7

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible.        In case of fire in the surroundings, use appropriate extinguishing media.   

   
  SYMPTOMS PREVENTION FIRST AID
Inhalation   Use ventilation (not if powder), local exhaust or breathing protection.   
Skin   Protective gloves.   
Eyes   Wear safety spectacles.   
Ingestion   Do not eat, drink, or smoke during work.   

SPILLAGE DISPOSAL CLASSIFICATION & 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. Wash away remainder with plenty of water. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 8; UN Pack Group: III 

STORAGE
Separated from strong oxidants, acids and food and feedstuffs. Well closed. 
PACKAGING
Do not transport with food and feedstuffs. 
AMMMONIUM BISULFITE ICSC: 1254
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS-TO-YELLOW CRYSTALS. 

Physical dangers
 

Chemical dangers
Decomposes on heating and on contact with acids. This produces toxic fumes including sulfur oxides, nitrogen oxides and ammonia. Reacts violently with oxidants. Attacks many metals in the presence of water. 

Formula: H5NO3S/NH4HSO3
Molecular mass: 99.1
Decomposes at 150°C
Relative density (water = 1): 2.0
Solubility in water, g/100ml at 10°C: 267  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
 

Effects of short-term exposure
 

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered. 

Effects of long-term or repeated exposure
 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
 

NOTES
Mainly sold as aqueous solution.
Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations