Rhenium

CAS 7440-15-5ReMetal & Ceramic Science

Rhenium (CAS: 7440-15-5, Formula: Re, MW: 186.21) is a rare and exceptionally dense transition metal. Renowned for its high melting point and corrosion resistance, it finds critical applications in advanced materials science. Rhenium is particularly valued for its use in creating superior tips for scanning tunneling microscopy, contributing to high-resolution surface analysis in research and development.

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Rhenium (Re) — chemical element, CAS 7440-15-5; Materials Science, fine chemical supplied by Tech Serve Solutions

Materials ScienceMetal and Ceramic ScienceMetalsRhenium

01 /Applications

Scanning Tunneling Microscopy Tips

Rhenium is utilized to fabricate highly precise tips for scanning tunneling microscopy (STM). Its unique properties allow for unparalleled resolution in surface imaging and characterization.

High-Temperature Alloys

While not explicitly stated in the provided data, rhenium is a key component in superalloys for jet engines and gas turbines due to its exceptional high-temperature strength and creep resistance.

Catalysis

Rhenium and its compounds serve as catalysts in various chemical processes, including petroleum refining for processes like catalytic reforming.

02 /Properties

Molecular weight	186.21
Empirical formula	Re
Assay	99.98% trace metals basis
Form	rod
Boiling point	5596 °C(lit.)5627 °C(lit.)
Density	21.02 g/cm3(lit.)
Application	A superior tip used in scanning tunneling microscopy.1
Melting point	3180 °C(lit.)

03 /Safety & handling

GHS hazard pictogram: Flammable (GHS02) — Flammable

Danger

Hazard statements

H228Flammable solid

Precautionary statements

P210Keep away from heat, sparks and open flames. No smoking

Protective equipment	Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
Water hazard class (WGK, DE)	nwg
Hazard codes (EU)	F
Risk statements (R)	11
Safety statements (S)	16

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

7440-15-5

MDL number

MFCD00011195

05 /Additional specifications

Diam	4 mm
Thickness	0.025 mm

06 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

07 /Frequently asked questions

What is Rhenium (CAS 7440-15-5) used for?

Rhenium (CAS: 7440-15-5, Formula: Re) is primarily used for fabricating superior tips in scanning tunneling microscopy. It is also a crucial component in high-temperature alloys and certain catalytic applications.

What is the CAS number and formula for Rhenium?

The CAS number for Rhenium is 7440-15-5, and its chemical formula is Re.

What grade and purity does Tech Serve Solutions supply for Rhenium?

Tech Serve Solutions supplies Rhenium with an assay of 99.98% on a trace metals basis. This is supplied as a technical/research grade; TSS does not represent this product as USP, BP, or EP.

What are the safety considerations when handling Rhenium?

Rhenium is classified as a flammable solid (H228). Handling requires precautions such as using eyeshields, appropriate gloves, and respiratory protection (e.g., N100 or P3 filters) in well-ventilated areas, away from ignition sources (P210).

How is Rhenium typically supplied and shipped?

Rhenium is supplied in a rod form with specific dimensions (e.g., 4 mm diameter, 25 mm length). TSS is an experienced global exporter and adheres to all shipping regulations for chemical compounds.

How can I request a quote or sample for Rhenium?

To request a quote or sample for Rhenium, please contact our sales team through the TSS website or by phone, providing the product name and CAS number (7440-15-5).