L-ASPARTIC ACID 1439
October 2002
L-Asparagic acid
CAS No: 56-84-8
(S)-Aminobutanedioic acid
RTECS No: CI9098500
L-Aminosuccinic acid
C4H7NO4
Molecular mass: 133.1
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Combustible. NO open flames. In case of fire in the surroundings:
FIRE
use appropriate extinguishing
media.
Finely dispersed particles form Prevent build-up of electrostatic
EXPLOSION
explosive mixtures in air. charges (e.g., by grounding).
Prevent deposition of dust; closed
system, dust explosion-proof
electrical equipment and lighting.
EXPOSURE PREVENT DISPERSION OF DUST!
Cough. Sore throat. Local exhaust or breathing Fresh air, rest. Refer for medical
Inhalation
protection. attention.
Protective gloves. Remove contaminated clothes.
Skin
Rinse and then wash skin with
water and soap.
Redness. Pain. Safety spectacles. First rinse with plenty of water for
Eyes
several minutes (remove contact
lenses if easily possible), then take
to a doctor.
Bitter taste. Burning sensation in Do not eat, drink, or smoke during Rinse mouth. Do NOT induce
Ingestion
the throat and chest. work. vomiting. Give plenty of water to
drink.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into containers; if
appropriate, moisten first to prevent dusting. Wash
away remainder with plenty of water. (Extra personal
protection: P1 filter respirator for inert particles.)
EMERGENCY RESPONSE STORAGE
Separated from strong oxidants.
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission
International 漏 IPCS 2002
Programme on
Chemical Safety SEE IMPORTANT INFORMATION ON THE BACK.
1439 L-ASPARTIC ACID
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS CRYSTALS The substance can be absorbed into the body by ingestion.
Physical dangers Inhalation risk
Dust explosion possible if in powder or granular form, mixed Evaporation at 20掳C is negligible; a nuisance-causing
with air. If dry, it can be charged electrostatically by swirling, concentration of airborne particles can, however, be reached
pneumatic transport, pouring, etc. quickly when dispersed, especially, if powdered.
Chemical dangers Effects of short-term exposure
The substance decomposes on burning producing toxic gases The substance is irritating to the eyes and the respiratory tract.
including nitrogen oxides. Reacts violently with oxidants.
Occupational exposure limits
TLV not established.
PHYSICAL PROPERTIES
Decomposes below boiling point at 324掳C Solubility in water, g/100 ml: 0.45
Melting point: 270掳C Octanol/water partition coefficient as log Pow: -3.89
Density: 1.7 g/cm3
ENVIRONMENTAL DATA
NOTES
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE for the use which might be made of this information
漏IPCS 2002
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