Agent Name

Rhenium

CAS Number

7440-15-5

Formula

Re

Major Category

Metals

Synonyms

Rhenium, elemental; [ChemIDplus] UN3089 (powder)

Category

Elements, Metallic

Description

Black to silver-grey solid; [Merck Index]

Sources/Uses

Found in gadolinite, molybdenite, columbite, rare earth minerals, and some sulfide ores; Used in electron tubes, semiconductors, electrical contacts, catalysts, jewelry plating, medical instruments, high-vacuum equipment, and mirror backings; [Merck Index] Used in tungsten and molybdenum alloys, electronic filaments, high-temperature thermocouples, igniters for flash bulbs, and refractory materials in missiles; [Hawley]

Comments

Powdered form is flammable; [Hawley] Not an essential mineral in living organisms; No reported toxicity in workers handling perrhenic acid or ammonium perrhenate; [Ullmann]

Exposure Assessment
Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Metal powder, flammable, n.o.s."

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:

Activities

Activities with risk of exposure: