Ammonium paratungstate

Other name: Ammonium tungstate; Ammonium wolframate; APT
CAS no. : 11120-25-5
EINECS no. : 234-364-9
Molecular formula: 5(NH4)2O·12WO3 •5H2O
Molecular weight: 3133.37
Solubility: Soluble in water, insoluble in alcohol

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Purity: 99.9%
Appearance: White crystalline powder
Burning loss: 11.5 % Max
Granularity: 35-46 um
Bulk density: 1.8-2.6g /cm3

Use: Mainly used for the manufacture of tungsten trioxide or blue tungsten oxide metal tungsten powder; The downstream products of metal tungsten powder are tungsten series, such as tungsten strip, tungsten wire and other electric vacuum materials; There are alloy series, such as tungsten carbide, hard alloy, alloy blade, alloy bit, alloy die, etc. Other wear – resistant, pressure – resistant, high – temperature mechanical equipment components. To manufacture the upstream material of secondary ammonium tungstate.

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