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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
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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/WInChIKey
WFKWXMTUELFFGS-UHFFFAOYSA-NSmiles
[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. |