Ammonium metavanadate
- CAS number
- 7803-55-6
- Molecular weight
- 116.98
- Molecular formula / chemical symbol
- NH4VO3
Description
White or with pale yellow crystalline powder, physical properties: relatively tight 2.326; Melting point 200 ℃, slightly soluble in cold water, hot ethanol and ether, soluble in hot water and dilute aqueous ammonia; The air when burning into vanadium pentoxide, poisonous. Chemical properties: in vacuum heated to 135 ℃ began to decompose, more than 210 ℃ when the formation of vanadium oxide at a low price. When in the air when burning into vanadium pentoxide.
USES
Mainly used for chemical reagent, catalyst, drier, mordant, etc. Ceramic industry is widely used as a glaze. Can also be used in producing vanadium pentoxide
Report
|
test item |
test result |
||
|
content（%） |
Electronic special |
chemically pure |
analytically pure |
|
NH4VO3 |
≥99.5 |
≥98.0 |
≥99.0 |
|
chloride（Cl） |
≤0.001% |
≤0.05% |
≤0.005% |
|
sulfate（SO4） |
≤0.005% |
≤0.02% |
≤0.01% |
|
arbonate（CO3） |
qualified |
qualified |
qualified |
|
Ferrum（Fe） |
≤0.001% |
≤0.01% |
≤0.005% |
|
heavy metal（Pb） |
≤0.001% |
|
|
|
Ammonia water dissolved in test |
qualified |
qualified |
qualified |