Zirconium Tungstate Powder

Zirconium Tungstate Powder
Product Zirconium Tungstate Powder (W2ZrO8 Powder)
Part Number PW07
CAS Number 16853-74-0
EINECS 240-876-3

About Zirconium Tungstate (W2ZrO8) Powder

Zirconium Tungstate Powder (W2ZrO8 Powder) is an inorganic compound with molecular formula Zr(WO4)2 and molecular weight of 586.9. It is a kind of negative thermal expansion material with excellent performance and has negative thermal expansion performance in the temperature range of 0.3-1050.0 K. It is widely used in metal matrix composites, ceramic matrix composites, cement-based composites and polyamide resin composites.

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Other Trade Names: tungsten zirconium oxide, ditungsten zirconium octaoxide, Zr(WO4)2

Typical Applications:

Zirconium tungstate (W2ZrO8) is a basic material with excellent dielectric properties and negative temperature expansion coefficient. Coefficient of thermal expansion is 6.3×10-6 K-1. Inorganic dielectric materials based on temperature characteristics and chemical indexes are widely used in ceramic capacitors, microwave ceramics, filters, and performance improvement of organic compounds, optical catalysts and luminescent materials.

Typical Specification

Item W2ZrO8
Particle size (D50) 0.5-3 µm
Purity (wt%) 99% min.
Fe2O3 (wt%) <0.1
Na2O + K2O (wt%) <0.1
SiO2 (wt%) <0.1
Al2O3 (wt%) <0.1
H2O (wt%) <0.5
Ignition loss (wt%) <1.0

Order Information

Inquiries and orders should include the following information:

  1. Quantity
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Packing and Storage

Standard Packing: 25 kg PE liner paper bags. Special package is available on request.

Physical Properties

Form: Powder
Color: White to pale green
M.W.: 586.9
Density: 5.1 g/cm3
Solubility: Insoluble in water