Ammonium Paratungstate Physical Property

Ammonium ParatungstatePicture

The physical property of ammonium paratungstate (APT) is the property which can be performed without chemical changes or reactions, includes density, appearance, melting and boiling point and solubility ect. Ammonium paratungstate is an important compound in the tungsten metallurgy, the white crystal; for most of tungsten products, ammonium paratungstate is the most common high purity intermediate.

Physical Property of Ammonium Paratungstate
Appearance: White crystal with two forms of flake and needle.
Melting Point: 3410 °C(lit.)
Boiling Point: 5660 °C (lit.)
Measured density: 4.61g/cm3
X-Ray Density: 4.639 g/cm3
Solubility (water): Slightly soluble in water (the solubility is less than 2% in water under 20℃) and will increase slightly with the raising of temperature

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