Agent Name

Lithium hydride

CAS Number

7580-67-8

Formula

H-Li

Major Category

Metals

Synonyms

Lithium monohydride; [NIOSH] UN1414 UN2805

Category

Metal Hydrides

Description

Odorless, off-white to gray, translucent, crystalline mass or white powder; [NIOSH] Potent hygroscopic properties; [ACGIH]

Sources/Uses

Used as an intermediate for chemical synthesis, a desiccating agent, and to make ceramics and special glass; Used as a coolant and shielding material in nuclear energy production; [ACGIH]

Comments

Inhalation of aerosol can induce pulmonary edema. [ICSC] Burns to the skin appear worse than those caused by an equivalent amount of sodium hydroxide. [CHRIS] The TLV Basis is irritation (eye and respiratory tract); A worker inhaled lithium hydride fuel for 3 to 4 minutes and developed noncardiac pulmonary edema with subsequent full recovery; [ACGIH] See "Lithium deuteride."

Exposure Assessment
Skin Designation (ACGIH)

Insufficient data

Ceiling (ACGIH)

0.05 mg/m3, inhalable fraction

PEL (OSHA)

0.02 mg/m3

Excerpts from Documentation for IDLHs

Human data: It has been recommended that 0.5 mg/m3 is the maximum tolerable concentration for brief periods of exposure [AIHA 1964].

Lethal Concentration

LCLo (rat) = 10 mg/m3/4H

Explanatory Notes

VP = 0 mm Hg at 20 deg C; [HSDB]

Reference Link

ICSC: Lithium hydride

Adverse Effects
Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent: