Molybdenum pentachloride

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."

Biomedical References

0.5 mg/m3, as Mo, respirable fraction

5 mg/m3, as Mo

1000 mg/m3, as Mo

Yes

Skin burns

Processes

Industrial Processes with risk of exposure:

• Brazing
• Metal Thermal Spraying
• Soldering