vanadium pentoxide
- CAS number
- 1314-62-1
- Molecular weight
- Molecular formula / chemical symbol
- V2O5
Description
Orange, red brown crystalline powder or to black sheet. Melting point (℃) : 690, boiling point (℃) : 1750 (breakdown), solubility: slightly soluble in water, not soluble in ethanol, soluble in strong acid, alkali, amphoteric oxide, but the acid is given priority to. 700 ℃ above significant volatile. 700 ~ 1125 ℃ is decomposed into oxygen and vanadium tetroxide, these properties make it became a lot of organic and inorganic reaction catalyst. For strong oxidizing agents, easy to be restored into various low oxide. Slightly soluble in water, easy to form a stable colloidal solution. It is easy to dissolve in the base, in weak alkali conditions can generate vanadate (VO3 -). Soluble in strong acid (usually in pH = 2 or so up solution) don‘t generate vanadium acid radical ion, and generate goods state oxygen base vanadium ion (VO2 +). For toxic substances, and the air is the biggest allowance less than 0.5 mg/m3.
USES
Vanadium is a kind of nonferrous metal, vanadium pentoxide are widely used in metallurgy, chemical industry, mainly used for smelting ferrovanadium. Used for alloy additive, accounting for 80% of total consumption of the vanadium pentoxide above, the second is used as organic
chemical catalyst, namely catalyst, accounts for about 10% of the total, the other place used for inorganic chemical products, chemical reagent, enamel and magnetic materials, and other accounts for about 10% of the total amount
Keyword:Nanometer materials
Report
inspection report
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the name or description of a commodity |
vanadium pentoxide |
CAS: 1314-62-1 |
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character |
Orange, red brown crystalline powder or to black sheet |
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chemical formula |
V2O5 |
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test item |
test result |
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guarantee reagent（GR） |
analytically pure（AR） |
chemically pure（CP） |
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V2O5， % |
≥ 99.5 |
99.0 |
99.0 |
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ammonium salt(NH4)， % |
≤ 0.02 |
0.05 |
0.10 |
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Nitrium (Na)， % |
≤ 0.02 |
0.04 |
0.10 |
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Ferrum(Fe)， % |
≤0.01 |
0.02 |
0.03 |
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Heavy metal (Pb meter), % |
≤0.005 |
0.005 |
0.01 |
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hydrochloric acid and silicate， % |
≤0.1 |
0.2 |
0.3 |
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Loss on ignition ， % |
≤0.1 |
0.15 |
0.25 |
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sulfate(SO4)， % |
≤0.01 |
0.02 |
0.04 |
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chloride(Cl)， % |
≤0.005 |
0.01 |
0.02 |
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