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NITRILOTRIACETIC ACID ICSC: 1238
May 2003
NTA
N,N-Bis(carboxymethyl)glycine
Nitrilo-2,2',2"-triacetic acid
Aminotriacetic acid
Tricollamic acid
PDF for printing Explanation of fields
CAS No: 139-13-9
RTECS No: AJ0175000
    C6H9NO6 / N(CH2COOH)3
Molecular mass: 191.2

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION         FIRE FIGHTING   
FIRE Combustible under specific conditions. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames. In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION Finely dispersed particles form explosive mixtures in air. Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting.  
 
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 and then wash skin with water and soap.
Eyes Redness. Pain. Safety goggles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion   Do not eat, drink, or smoke during work. Rinse mouth. Give plenty of water 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.

IMPORTANT DATA
Physical State; Appearance
WHITE CRYSTALLINE POWDER.

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

Chemical dangers
The substance decomposes on burning producing toxic and irritating fumes including nitrogen oxides. The solution in water is a weak acid. Reacts with strong bases, strong oxidants.

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 is irritating to the eyes, the skin and the respiratory tract.

Effects of long-term or repeated exposure
This substance is possibly carcinogenic to humans.


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Melting point (decomposes): 242°C
Solubility in water: at 22 °C poor (0.128 g/100 ml)
Octanol/water partition coefficient as log Pow: -3.8
The substance is harmful to aquatic organisms. It is strongly advised that this substance does not enter the environment.

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 2003
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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