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Chemical Sampling Information (CSI)
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General Description

OSHA IMIS Code Number: 1503

Chemical Abstracts Service (CAS) Registry Number: 7580-67-8

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: OJ6300000

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: 1414 138; 2805 138; 1414 40

NIOSH Pocket Guide to Chemical Hazards, Lithium Hydride: Chemical description, physical properties, potentially hazardous incompatibilities, and more

Chemical Description and Physical Properties:
off-white, translucent, odorless solid
molecular weight: 8
boiling point: Decomposes
vapor pressure: 0 mm
melting point: 1267°F
Incompatibilities: Oxidizers, halogenated hydrocarbons, acids, water

Exposure Limits

OSHA Permissible Exposure Limit (PEL):
General Industry: 0.025 mg/m3

Construction Industry: 0.025 mg/m3 TWA
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.025 mg/m3 TWA

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.025 mg/m3 TWA


Health Factors

Potential Symptoms: Eye, skin burns; mouth and esophageal burns if injested; nausea; + muscle twitches; mental confusion; blurred vision

Health Effects: Irritation-Eye, Nose, Throat, Skin---Marked (HE14) Lung Damage (HE11); CNS effects (HE7)

Affected Organs: Respiratory system, skin, eyes

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • sampling media: Mixed Cellulose Ester Filter (MCEF) 0.8 microns
    analytical solvent: Deionized Water
    maximum volume: 960 Liters
    minimum volume: 480 Liters
    maximum flow rate: 2.0 L/min
    current analytical method: Atomic Absorption Spectroscopy; AAS
    method reference: 2 (OSHA ID-121)
    method classifications: Not Validated
    note: Submit as a separate sample. If the filter is not overloaded, samples may be collected up to an 8-hour period. When analysis of a compound is requested, an elemental analysis is performed and reported as the compound.
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Page last updated: 10/21/1997