Agent Name

Molybdenum pentachloride

CAS Number

10241-05-1

Formula

Cl5-Mo

Major Category

Metals

Synonyms

Molybdenum chloride; Molybdenum(V) chloride; Pentachloromolybdenum; Molybdenum chloride (MoCl5); [ChemIDplus] UN2508

Category

Metals, Inorganic Compounds

Description

Green-black solid; Dark-red as liquid or vapor; Hygroscopic; Reacts with water and air; [Hawley] Black crystalline solid with a pungent odor; Reacts with water; [MSDSonline]

Sources/Uses

Used as a chlorination catalyst and intermediate; Also used in molybdenum coatings, fire-retardant resins, and brazing/soldering fluxes; [Hawley]

Comments

An irritant; [Hawley] May react with water evolving hydrochloric acid; A skin irritant; [CAMEO] Corrosive to skin and eyes; [eChemPortal: ERMA] A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Inhalation may cause chemical pneumonitis; [MSDSonline] See "Molybdenum."

Exposure Assessment
TLV (ACGIH)

0.5 mg/m3, as Mo, respirable fraction

PEL (OSHA)

5 mg/m3, as Mo

IDLH (NIOSH)

1000 mg/m3, as Mo

Adverse Effects
Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Processes

Industrial Processes with risk of exposure: