Tungstosilicic acid hydrate
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Chemically pure (CP grade)
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Industrial grade
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WO3≥84%
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WO3≥84%
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SiO2 1.8-2.3%
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SiO2 1.7-2.4%
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Water insoluble matter≤0.02%
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Chloride (CI)﹤0.03%
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Sulphate(SO4)≤0.02%
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Nitrate(NO3)≤0.02%
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Heavy metals(Pb)≤0.005%
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