Hafnium oxide HfO2 powder CAS 12055-23-1
fO2 is an oxide of the nitride element, at room temperature and under normal pressure is a white solid. Insoluble in water, hydrochloric acid and nitric acid, soluble in concentrated sulfuric acid and fluorohydroic acid. It is obtained by thermal decomposition or hydrolysis of compounds such as vanadium sulfate and chloride oxide. Raw materials for the production of metal and vanadium alloys. Used as refractory materials, anti-radioactive coatings and catalysts.
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Item
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Standard
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Result
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|
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HfCl4+ZrCl4
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≥99%
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>99.5%
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|
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Fe
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≤0.02%
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0.01%
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|
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Ca
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≤0.01%
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0.005%
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|
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Si
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≤0.02%
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0.008%
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|
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Mg
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≤0.005%
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0.003%
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|
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Cr
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≤0.005%
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0.002%
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|
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Ni
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≤0.005%
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0.002%
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|
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Al
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≤0.02%
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0.01%
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|
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