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SULFAMIC ACIDICSC: 0328
October 1994
CAS #: 5329-14-6Amidosulfonic acid
Amidosulfuric acid
Sulfamidic acid
UN #: 2967
EINECS #: 226-218-8

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible under specific conditions. Gives off irritating or toxic fumes (or gases) in a fire.    NO open flames.    Use water spray, foam, powder, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

 PREVENT DISPERSION OF DUST! STRICT HYGIENE!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Burning sensation. Cough. Shortness of breath.  Use local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. 
Skin Redness. Pain. Blisters.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Redness. Pain. 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 cramps. Burning sensation. Sore throat. Vomiting. Shock or collapse.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Refer for medical attention . 

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. Cautiously neutralize remainder. Then wash away with plenty of water. 

According to UN GHS Criteria

 

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

STORAGE
Separated from strong bases and food and feedstuffs. Dry. 
PACKAGING
Do not transport with food and feedstuffs. 
SULFAMIC ACID ICSC: 0328
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
ODOURLESS COLOURLESS CRYSTALS OR POWDER. 

Physical dangers
 

Chemical dangers
Decomposes on heating and on burning. This produces toxic and corrosive fumes including nitrogen oxides and sulfur oxides. The solution in water is a strong acid. It reacts violently with bases and is corrosive. Reacts violently with chlorine and fuming nitric acid. This generates explosion hazard. Reacts slowly with water. This produces ammonium bisulfate. 

Formula: H3NO3S / NH2SO3H
Molecular mass: 97.1
Decomposes at ~205°C
Relative density (water = 1): 2.15
Solubility in water: moderate, slow reaction 


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The aerosol is corrosive to the eyes, skin and respiratory tract. Inhalation of sulfamic acid aerosols may cause lung oedema. See Notes. 

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
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation is therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: Xi; R: 36/38-52/53; S: (2)-26-28-61 

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    See Also:
       Toxicological Abbreviations