Rhenium
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]
Biomedical References
Exposure Assessment
Explanatory Notes
The Guide in the Emergency Response Guidebook is for "Metal powder, flammable, n.o.s."
Diseases, Processes, and Activities Linked to This Agent
Processes
Industrial Processes with risk of exposure:
Activities
Activities with risk of exposure: