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CAS number : 7440-33-7

Molecular weight :183.85

Molecular formula/chemical symbol :W

Description :

Appearance: Silvery

Density: 19.3 g/ml

Melting point: 3410 °C

Boiling point: 5900 °C


Tungsten is a Block D, Group 6, Period 6 element. The number of electrons in each of Tungsten's shells is 2, 8, 18, 32, 12, 2 and its electronic configuration is [Xe] 4f14 5d4 6s2. In its elemental form tungsten's CAS number is 7440-33-7. The tungsten atom has a radius of and it's Van der Waals radius is Tungsten is considered to be only mildly toxic. Tungsten has the highest melting point of all the metallic elements and because of this has its first significant commercial application as the filament in incandescent light bulbs and fluorescent light bulbs. Tungsten is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. Later it was used in the first television tubes. The first imaging equipment involved X-ray bombardment of a tungsten target. Tungsten expands at nearly the same rate as borosilicate glass and is used to make metal to glass seals. It is the primary metal in heating elements for electric furnaces and in any components where high pressure/temperature environments are expected, such as aerospace and engine systems. Tungsten is found in the minerals wolframite, scheelite, ferberit and hübnerite and was first discovered by Fausto and Juan Jose de Elhuyar in 1783. In reference to its density, Tungsten gets its name from the swedish words tung and sten meaning heavy stone. See Tungsten research below.

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Product Code

(2N) 99% Tungsten Pills


(3N) 99.9% Tungsten Pills


(4N) 99.99% Tungsten Pills


(5N) 99.999% Tungsten Pills