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ASCORBIC ACID ICSC: 0379
October 1997
Vitamin C
L-Ascorbic acid
L-Xyloascorbic acid
3-Oxo-L-gulofuranolactone (enol form)
PDF for printing Explanation of fields
CAS No: 50-81-7
RTECS No: CI7650000
    C6H8O6
Molecular mass: 176.12

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible. NO open flames. Water spray, powder.
EXPLOSION      
 
EXPOSURE   PREVENT DISPERSION OF DUST!  
Inhalation Cough. Sore throat. Local exhaust or breathing protection. Fresh air, rest.
Skin Redness. Protective gloves. Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes Redness. Pain. Safety spectacles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion     Rinse mouth.

SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water. Personal protection: P1 filter respirator for inert particles.  

EMERGENCY RESPONSE SAFE STORAGE
  Separated from strong oxidants, strong bases.

IMPORTANT DATA
Physical State; Appearance
ODOURLESS, WHITE TO SLIGHTLY YELLOW CRYSTALS OR POWDER

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

Occupational exposure limits
TLV not established.

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

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

Effects of short-term exposure
The substance irritates the eyes, the skin and the respiratory tract.


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Melting point (decomposes): 190-192°C
Density: 1.65 g/cm³
Solubility in water, g/100 ml: 33
Octanol/water partition coefficient as log Pow: -2.15
 

NOTES
 

IPCS
International
Programme on
Chemical Safety
WHO ILO UNEP EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.

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