Agent Name

Calcium arsenate

CAS Number

7778-44-1

Formula

As2-O8.3Ca

Major Category

Metals

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 inorganic compounds" and the linked occupational diseases.

Restricted

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

Exposure Assessment
BEI

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

Bioaccumulates

Yes

IDLH (NIOSH)

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

Adverse Effects
Reproductive Toxin

Yes

Neurotoxin

Sensorimotor Neuropathy

Hepatotoxin

Hepatotoxin, Secondary

Anemia

Anemia, Aplastic

IARC Carcinogen

Known Carcinogen

NTP Carcinogen

Human Carcinogen

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

Chemical Information

Search ChemIDplus

Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent: