Agent Name

Niobium pentachloride

CAS Number

10026-12-7

Formula

Cl5-Nb

Major Category

Metals

Synonyms

Columbium pentachloride; Niobium chloride; [ChemIDplus] Niobium(V) chloride; [Merck Index] UN3260

Category

Metals, Inorganic Compounds

Description

Yellow highly deliquescent solid; [Merck Index] Yellow lumps with an acidic odor; [Alfa Aesar MSDS]

Sources/Uses

Used as a Lewis acid catalyst in organic synthesis; [Merck Index]

Comments

Causes diffuse hepatitis, fatty liver degeneration, and renal tubular changes in oral lethal-dose studies of rats and mice; Causes abnormal liver function tests and other GI changes in 17-week intermittent oral studies of rabbits; [RTECS] Decomposed by moisture forming hydrogen chloride; [Merck Index] Reacts with water producing hydrochloric acid; Causes burns; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; Harmful by ingestion; [Alfa Aesar MSDS] See "Niobium."

Exposure Assessment
Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Corrosive solid, acidic, inorganic, n.o.s."

Adverse Effects
Toxic Pneumonitis

Yes

Hepatotoxin

Hepatotoxin, Secondary

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Other Information

No other related information on this agent was found.