Agent Name

Calcium phosphide

CAS Number

1305-99-3

Formula

Ca3-P2

Major Category

Metals

Synonyms

Calcium photophor; Photophor; UN1360; [ChemIDplus]

Category

Phosphides

Description

Red-brown crystals or gray lumps with a musty odor like acetylene; [HSDB]

Sources/Uses

Used for signal fires, pyrotechnics, copper purification, and rodent poison; [HSDB]

Comments

Reacts with water to form the highly toxic and flammable phosphine; [Hawley] "This chemical ingredient is not found in any products." [NPIRS] See "PHOSPHIDES." See "Phosphine."

Exposure Assessment
TIH

Yes

Dangerous When Wet

Yes - A material that, by contact with water, is liable to become spontaneously flammable or to give off flammable or toxic gas at a rate greater than 1 L per kilogram of the material, per hour; [ERG 2004]

Odor Threshold Low

0.13 ppm

Odor Threshold High

13.4 ppm

Explanatory Notes

Odor threshold = 1-100 mg/m3; [CHRIS] Not TIH in land-based spills, but TiH substance released when spilled in water; [ERG 2016]

Adverse Effects
Toxic Pneumonitis

Yes

Neurotoxin

Other CNS Neurotoxin

Hepatotoxin

Hepatotoxin, Secondary

Nephrotoxin

Yes

Links to Other NLM Databases
Health Studies

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Toxicity Information

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Chemical Information

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Related Information in HazMap
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Occupational diseases associated with exposure to this agent:

Processes

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