International Chemical Safety Cards

NITRILOTRIACETIC ACID TRISODIUM SALT MONOHYDRATE

ICSC: 1239

NTA sodium monohydrate
Trisodium nitrilotriacetate monohydrate
N,N-Bis(carboxymethyl)glycine trisodium salt monohydrate
Nitrilo-2,2',2-triacetic acid trisodium salt monohydrate
C₆H₆NO₆Na₃•H₂O / N(CH₂COONa)₃•H₂O
Molecular mass: 275.1
ICSC # 1239
CAS # 18662-53-8
RTECS # AJ1070000
May 08, 2003 Peer reviewed

TYPES OF HAZARD/ EXPOSURE	ACUTE HAZARDS/ SYMPTOMS	PREVENTION	FIRST AID/ 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! STRICT HYGIENE!
•INHALATION	Burning sensation. Sore throat. Cough. Laboured breathing. Shortness of breath.	Local exhaust or breathing protection.	Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.
•SKIN	Redness. Skin burns. Pain.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse skin with plenty of water or shower.
•EYES	Redness. Pain. Severe deep burns.	Safety goggles, or face shield.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION	Abdominal pain. Burning sensation. Shock or collapse.	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Give plenty of water to drink. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment.

Separated from strong oxidants, strong acids. Well closed.

R:
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SEE IMPORTANT INFORMATION ON BACK

ICSC: 1239

Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards

NITRILOTRIACETIC ACID TRISODIUM SALT MONOHYDRATE

ICSC: 1239

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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 medium strong base. Reacts with 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 corrosive to the eyes, the skin and the respiratory tract. Corrosive on ingestion.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
This substance is possibly carcinogenic to humans.

PHYSICAL
PROPERTIES

Melting point (decomposes): 340°C
Density: 1.782
g/cm3

at 25°C
Solubility in water, g/100 ml at 25°C: good (50 g/100 ml)

ENVIRONMENTAL
DATA

The substance is harmful to aquatic organisms. It is strongly advised that this substance does not enter the environment.

N O T E S

Card has been partly updated in April 2005. See synonyms.

ADDITIONAL INFORMATION

ICSC: 1239	NITRILOTRIACETIC ACID TRISODIUM SALT MONOHYDRATE
(C) IPCS, CEC, 1994

IMPORTANT LEGAL NOTICE:

Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.