Cadmium (2+) NTA

Synonyms

Cadmium nitrilotriacetate; Hydrogen (N,N-bis(carboxymethyl)glycinato(3-)-N,O,O',O'')cadmate; [ChemIDplus]

Category

Organic Acids, Metal Salts

Comments

"There is inadequate evidence in humans for the carcinogenicity of nitrilotriacetic acid and its salts." [IARC] NTA complexes of mercury, cadmium, and nickel degrade more slowly than complexes of lead, zinc, and iron; Undegraded NTA may accumulate in the environment; [HSDB] See "Cadmium" and the linked occupational diseases.

Biomedical References

Cd in urine = 5 ug/g creatinine; Cd in blood = 5 ug/L; sampling time not critical; "Monitoring in blood should be preferred during the initial year of exposure and whenever changes in the degree of exposure are suspected." [ACGIH]

Yes

0.01 mg/m3, as Cd ( 0.002 mg/m3, as Cd, respirable fraction)

0.005 mg/m3, as Cd, see 29 CFR 1910.1027

9 mg/m3, as Cd

Yes

Yes

Possible (2b)

Anticipated human carcinogen

Diseases

Occupational diseases associated with exposure to this agent:

• Cadmium, chronic toxic effect
• Osteomalacia