Home Categories Inorganic chemistry Rhenium
A7115412

Rhenium , 99.999% , 7440-15-5

Synonym(s):
;Rhenium;Rhenium element;Rhenium nitrate solution

CAS NO.:7440-15-5

Empirical Formula: Re

Molecular Weight: 186.21

MDL number: MFCD00011195

EINECS: 231-124-5

Pack Size Price Stock Quantity
1G RMB187.20 In Stock
5G RMB660.80 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 3180 °C (lit.)
Boiling point: 5596 °C (lit.) 5627 °C (lit.)
Density  21.02 g/cm3 (lit.)
storage temp.  Flammables area
solubility  insoluble in HCl
form  wire
color  Silver-gray
Specific Gravity 21.04
Water Solubility  Insoluble in water.
Merck  13,8261
Exposure limits ACGIH: TWA 1 mg/m3
OSHA: TWA 15 mg/m3; TWA 5 mg/m3
InChIKey WUAPFZMCVAUBPE-UHFFFAOYSA-N
CAS DataBase Reference 7440-15-5(CAS DataBase Reference)
EPA Substance Registry System Rhenium (7440-15-5)

Description and Uses

Small quantities of rhenium are alloyed with iron to form steel that is both hard and resistantto wear and high-temperatures. Because of its high melting point, rhenium is used inmany applications where long-wearing, high-temperature electrical components are required,such as electrical contacts and switches and high-temperature thermocouples. This physicalquality makes rhenium alloys ideal for use in rocket and missile engines. It is also used to formthe filaments in photographic flash lamps.
Rhenium’s isotope (187Re) has a very long half-life and decays by both beta and alpharadiation at a very steady rate. This factor makes it useful as a standard to measure the age ofthe universe.

Safety

Symbol(GHS) 
GHS05
Signal word  Danger
Hazard statements  H290-H314
Precautionary statements  P234-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363
Hazard Codes  C,F,Xi
Risk Statements  34-11-36/38
Safety Statements  16-45-36/37/39-26-33-27
RIDADR  UN 3178 4.1/PG 2
WGK Germany  3
RTECS  VI0780000
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  8112993090

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