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Substance Name: Tungsten
RN: 7440-33-7
UNII: V9306CXO6G
InChIKey: WFKWXMTUELFFGS-UHFFFAOYSA-N

Note

  • A metallic element with the atomic symbol W, atomic number 74, and atomic weight 183.85. It is used in many manufacturing applications, including increasing the hardness, toughness, and tensile strength of steel; manufacture of filaments for incandescent light bulbs; and in contact points for automotive and electrical apparatus.

Molecular Formula

  • W

Molecular Weight

  • 183.84
 

Classification Codes

Classification Codes

  • Reproductive Effect
  • Skin / Eye Irritant

Superlist Classification Code

  • TWA 5 mg/m3; STEL 10 mg/m3

Names and Synonyms

Name of Substance

  • Tungsten

MeSH Heading

  • Tungsten

Synonyms

  • CCRIS 9484
  • EC 231-143-9
  • EINECS 231-143-9
  • HSDB 5036
  • Tungsten
  • UNII-V9306CXO6G
  • VA (tungsten)
  • Wolfram

Systematic Name

  • Tungsten

Superlist Names

  • Tungsten
  • Tungsten, elemental
  • Tungsten, insoluble compounds
  • Tungsten, metal and insoluble compounds
  • Tungsten, soluble compounds

Registry Numbers

CAS Registry Number

  • 7440-33-7

FDA UNII

  • V9306CXO6G

Other Registry Number

  • 37374-90-6

System Generated Number

  • 0007440337

Structure Descriptors

InChI

InChI=1S/W

InChIKey

WFKWXMTUELFFGS-UHFFFAOYSA-N

Smiles

[W]

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LD50 intraperitoneal 5gm/kg (5000mg/kg) VASCULAR: REGIONAL OR GENERAL ARTERIOLAR OR VENOUS DILATION

BLOOD: OTHER CHANGES

LIVER: OTHER CHANGES		 Industrial Medicine. Vol. 15, Pg. 482, 1946.