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AZODICARBONAMIDEICSC: 0380
Diazenedicarboxamide
1,1'-Azobisformamide
September 1997
CAS #: 123-77-3
UN #: 3242
EC Number: 204-650-8

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Flammable. Gives off irritating or toxic fumes (or gases) in a fire.    NO open flames, NO sparks and NO smoking.    Use foam, powder.   

 PREVENT DISPERSION OF DUST! STRICT HYGIENE!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Headache. Shortness of breath. Sore throat. Wheezing. Fatigue. Muscle cramps.  Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness.  Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes Redness. Pain.  Wear safety goggles 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   Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Rest. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 4.1; UN Pack Group: II 

STORAGE
 
PACKAGING
 
AZODICARBONAMIDE ICSC: 0380
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
ORANGE RED CRYSTALS OR YELLOW POWDER. 

Physical dangers
 

Chemical dangers
Decomposes on heating and on burning. This produces toxic fumes of nitrogen oxides. 

Formula: C2H4N4O2 / NH2CON=NCONH2
Molecular mass: 116.1
Decomposes at 225°C
Relative density (water = 1): 1.65
Solubility in water: none 


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes and respiratory tract. Inhalation of dust may cause asthmatic reactions. See Notes. 

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

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation may cause asthma. 


OCCUPATIONAL EXPOSURE LIMITS
MAK: (inhalable fraction): 0.02 mg/m3; peak limitation category: I(1); pregnancy risk group: D 

ENVIRONMENT
 

NOTES
The symptoms of asthma often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation are therefore essential.
Anyone who has shown symptoms of asthma due to this substance should avoid all further contact. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: Xn; R: 42-44; S: (2)-22-24-37 

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    See Also:
       Toxicological Abbreviations
       Azodicarbonamide (FAO Nutrition Meetings Report Series 40abc)
       AZODICARBONAMIDE (JECFA Evaluation)
       Azodicarbonamide (CICADS 16, 1999)