ICSC 1439 - L-ASPARTIC ACID

L-ASPARTIC ACID	ICSC: 1439 (September 2002)
L-Asparagic acid (S)-Aminobutanedioic acid L-Aminosuccinic acid

CAS #: 56-84-8

EC Number: 200-291-6

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible. Finely dispersed particles form explosive mixtures in air.	NO open flames. Prevent build-up of electrostatic charges (e.g., by grounding). Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.	In case of fire in the surroundings, use appropriate extinguishing media.

PREVENT DISPERSION OF DUST!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Sore throat.	Use local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin		Protective gloves.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	Wear safety spectacles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Burning sensation in the throat and chest.	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water. Personal protection: particulate filter respirator adapted to the airborne concentration of the substance.	According to UN GHS Criteria Transportation UN Classification
STORAGE
Separated from strong oxidants.
PACKAGING

L-ASPARTIC ACID

ICSC: 1439

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS CRYSTALS. Physical dangers Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc. Chemical dangers Decomposes on burning. This produces toxic gases including nitrogen oxides. Reacts violently with oxidants.	Formula: C₄H₇NO₄ Molecular mass: 133.1 Decomposes at 324°C Melting point: 270°C Density: 1.7 g/cm³ Solubility in water, g/100ml: 0.45 Octanol/water partition coefficient as log Pow: -3.89

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS CRYSTALS.

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.

Chemical dangers
Decomposes on burning. This produces toxic gases including nitrogen oxides. Reacts violently with oxidants.

Formula: C₄H₇NO₄
Molecular mass: 133.1
Decomposes at 324°C
Melting point: 270°C
Density: 1.7 g/cm³
Solubility in water, g/100ml: 0.45
Octanol/water partition coefficient as log Pow: -3.89

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by ingestion. Effects of short-term exposure The substance is irritating to the eyes and respiratory tract.	Inhalation risk Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered. Effects of long-term or repeated exposure

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by ingestion.

Effects of short-term exposure
The substance is irritating to the eyes and respiratory tract.

Inhalation risk
Evaporation at 20°C is negligible; a nuisance-causing 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

ADDITIONAL INFORMATION

EC Classification

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    See Also:
       Toxicological Abbreviations
       L-ASPARTIC ACID (JECFA Evaluation)