Niobium diselenide

Other name: Niobium(IV) selenide, Niobium selenide; Columbium selenide;  diselenoxoniobium; niobium(+4) cation; selenium(-2) anion

CAS no. : 12034-77-4

EINECS no. : 234-811-8

Formula: NbSe2.

Molecular weight: 250.8264.

Density (g/mL,25) : 6.3

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Technical Index:

Purity: 99.95%
Physical properties: blue-gray powder
Technical: high temperature and high pressure vacuum melting, thermal diffusion after treatment.

Test: ICP-MS (sum of all impurity elements less than 100ppm), XRD (X-ray diffraction)
Size: 100 mesh
Application: Scientific Research
Packing: Bottle: 1kg/bottle, vacuum packed with aluminum composite film

Properties: have high thermal stability, used in the nitrogen temperature can reach 600 ℃, in an inert atmosphere for 900 ℃; Besides concentrated nitric acid, it has good stability for general acid, alkali and organic solvent. Vacuum in 900 ~ 1000 ℃ decomposition generated selenide complete decomposition into niobium and niobium and elemental selenium or selenium; At the beginning of the 300 ℃ in air oxidation. The metal niobium powder and selenium in 600 ~ 800 ℃ in the sealed container under reaction or niobium pentoxide and hydrogen selenide in 800 ~ 1000 ℃ reaction can be made 2 selenide niobium.

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