Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Reference substances

Reference substances

Currently viewing:
IUPAC name:
tungsten

Inventory

EC number:
231-143-9
EC name:
Tungsten
CAS number:
7440-33-7
CAS number:
7440-33-7
Synonyms
Names:
Tungsten
Tungsten Metal Powder (TMP)
Wolfram
wolfram
Identifier:
IUPAC name
Tungsten
Identifier:
IUPAC name
tungsten(2+)
Identifier:
other: InChl
InChI=1/W/q+2
Identifier:
other: SMILES notation
[W]
Identifier:
other: InChl
1S/W
Identifier:
other: InChl
InChI=1/W
Identifier:
other: InChl
InChI=1S/W
tungsten

Molecular and structural information

Molecular formula:
W
Molecular weight:
183.839
SMILES notation:
[W]
InChl:
InChI=1/W/q+2
Structural formula:
Chemical structure

Related substances