NITRILOTRIACETIC ACID 1238
May 2003
NTA
CAS No: 139-13-9
N,N-Bis(carboxymethyl)glycine
RTECS No: AJ0175000
Nitrilo-2,2',2"-triacetic acid
Aminotriacetic acid
Tricollamic acid
C6H9NO6 / N(CH2COOH)3
Molecular mass: 191.2
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Combustible under specific NO open flames. In case of fire in the surroundings:
FIRE
conditions. Gives off irritating or use appropriate extinguishing
toxic fumes (or gases) in a fire. media.
Finely dispersed particles form Prevent deposition of dust; closed
EXPLOSION
explosive mixtures in air. system, dust explosion-proof
electrical equipment and lighting.
EXPOSURE PREVENT DISPERSION OF DUST!
Cough. Sore throat. Local exhaust or breathing Fresh air, rest.
Inhalation
protection.
Redness. Protective gloves. Remove contaminated clothes.
Skin
Rinse and then wash skin with
water and soap.
Redness. Pain. Safety goggles. First rinse with plenty of water for
Eyes
several minutes (remove contact
lenses if easily possible), then take
to a doctor.
Do not eat, drink, or smoke during Rinse mouth. Give plenty of water
Ingestion
work. to drink.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into covered containers; if
appropriate, moisten first to prevent dusting.
Carefully collect remainder, then remove to safe
place. (Extra personal protection: P3 filter respirator
for toxic particles.) Do NOT let this chemical enter
the environment.
EMERGENCY RESPONSE STORAGE
Separated from strong oxidants, strong bases. Well closed.
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.
1238 NITRILOTRIACETIC ACID
IMPORTANT DATA
Physical State; Appearance Routes of exposure
WHITE CRYSTALLINE POWDER. The substance can be absorbed into the body by inhalation of
its aerosol and by ingestion.
Physical dangers
Inhalation risk
Dust explosion possible if in powder or granular form, mixed
with air. 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掳C.
Chemical dangers
The substance decomposes on burning producing toxic and
Effects of short-term exposure
irritating fumes including nitrogen oxides. The solution in water
is a weak acid. Reacts with strong bases, strong oxidants. The substance is irritating to the eyes, the skin and the
respiratory tract.
Occupational exposure limits
Effects of long-term or repeated exposure
TLV not established.
This substance is possibly carcinogenic to humans.
PHYSICAL PROPERTIES
Melting point (decomposes): 242掳C Octanol/water partition coefficient as log Pow: -3.8
Solubility in water: at 22 掳C poor (0.128 g/100 ml)
ENVIRONMENTAL DATA
The substance is harmful to aquatic organisms. It is strongly advised that this substance does not enter the environment.
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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