Calcium arsenate

Synonyms

Calcium salt (2:3) of arsenic acid; Cucumber dust; Tricalcium arsenate; Tricalcium ortho-arsenate; [NIOSH] Tricalcium arsenate; Arsenic acid (H3AsO4), calcium salt (2:3); Turf-Cal; Chip-Cal; Security (trade name for lead arsenate also); Pencal; Spra-Cal; [NPIRS]

Category

Arsenic Compounds, Inorganic

Description

Colorless to white, odorless solid. [insecticide/herbicide]; [NIOSH]

Sources/Uses

Has been used as a pesticide; [ACGIH]

Comments

See "Arsenic" and the linked occupational diseases.

"No ACTIVE registrants found for selected chemical." [NPIRS]

Biomedical References

Inorganic arsenic plus methylated metabolites in urine = 35 ug As/L; end of workweek;

Yes

0.01 mg/m3, as As

0.01 mg/m3, as As

5 mg/m3, as As

Excerpts from Documentation for IDLHs

No inhalation toxicity data are available on which to base an IDLH for calcium arsenate. Therefore, the revised IDLH for calcium arsenate is 5 mg As/m3 based on acute oral toxicity data in animals [Lehman 1951] and to be consistent with the revised IDLH for other inorganic arsenic compounds which have a revised IDLH of 5 mg As/m3.

Explanatory Notes

NIOSH REL = ceiling of 0.002 as As, 15 min

Aplastic anemia

Sensorimotor

Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion

Yes

Established

Human carcinogen

Confirmed Human

Diseases

Occupational diseases associated with exposure to this agent:

• Arsenic, chronic toxic effect