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ASCORBIC ACIDICSC: 0379 (April 2024)
Vitamin C
L-Ascorbic acid
L-Xyloascorbic acid
3-Oxo-L-gulofuranolactone (enol form)
CAS #: 50-81-7
EC Number: 200-066-2

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible under specific conditions. Gives off irritating or toxic fumes (or gases) in a fire.  Finely dispersed particles form explosive mixtures in air.  NO open flames.  PREVENT DISPERSION OF DUST.  Use water spray, powder, carbon dioxide.   

   
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough.  Use ventilation.  Fresh air, rest. 
Skin      
Eyes Redness.  Wear safety spectacles.  Rinse with plenty of water (remove contact lenses if easily possible). 
Ingestion     Rinse mouth. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Collect the spilled substance into containers. If appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water. 

According to UN GHS Criteria

No hazard classification according to GHS criteria 

Transportation
UN Classification
 

STORAGE
Separated from strong oxidants and strong bases. 
PACKAGING
 
ASCORBIC ACID ICSC: 0379
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
ODOURLESS WHITE-TO-SLIGHTLY-YELLOW CRYSTALS OR POWDER. 

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

Chemical dangers
The substance is a strong reducing agent. It reacts violently with oxidants. The solution in water is a medium strong acid. 

Formula: C6H8O6
Molecular mass: 176.12
Decomposes at 190-192°C
Density (at 25°C): 1.65 g/cm³
Solubility in water, g/100ml at 20°C: 33 (freely soluble)
Octanol/water partition coefficient as log Pow: -2.15  


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
 

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

Effects of long-term or repeated exposure
 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
No data. 

NOTES
This substance is also used as food additive. 

ADDITIONAL INFORMATION
  EC Classification
 

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