金属铼

Description

Rhenium metal · CAS 7440-15-5 · Re. UNII 7YHU292INY.

Identification

CAS Registry Number	7440-15-5
PubChem CID	23947
Molecular formula	Re
IUPAC name	rhenium
UNII (FDA)	7YHU292INY

Computed Descriptors

Molecular Weight	186.207
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	0
Exact Mass	186.955752
Monoisotopic Mass	186.955752
Topological Polar Surface Area	0
Heavy Atom Count	1
Formal Charge	0
Complexity	0

Physical description & handling notes

• Other Solid
• Black to silver-grey solid; [Merck Index]
• Liquid

Regulatory Status

GHS notification summary	34.9% (137 / 393)

GHS Hazard Classification

GHS notification summary	34.9% (137 / 393)
Reported hazard statements	H228 (63.9%)

Documented 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]
• Metal Preparation and Pouring [Category: Foundry]
• Semiconductor Manufacturing [Category: Industry]
• Jewelry making [Category: Hobbies]

Synonyms

RHENIUM; 7440-15-5; 7YHU292INY; RHENIUM, ELEMENTAL; DTXSID9064685; NSC-600662; RefChem:179141; DTXCID7047649; 231-124-5; rhenium atom; Rhenium pellets; RHENIUM ELEMENT; renio; MFCD00011195; 75Re; rhenium metal

Frequently Asked Questions

What are the CAS number and molecular formula of Rhenium metal?

CAS 7440-15-5; molecular formula Re; molecular weight — g/mol.

What other names is Rhenium metal known by?

RHENIUM, 7440-15-5, 7YHU292INY, RHENIUM, ELEMENTAL, DTXSID9064685, NSC-600662.

Is Rhenium metal classified as hazardous?

34.9% of GHS notifications report no hazard classification (137 of 393).

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.