Cas number 7803-55-6
Molecular formula NH4VO3
Molecular weight 116.99
Ammonium metavanadate
White light yellow crystalline powder. Slightly soluble in cold water, hot ethanol and ether, soluble in hot water and dilute ammonium hydroxide. Can be dissolved in 165 minutes of water. Heating loses ammonia and water. It becomes vanadium pentoxide when it is burned in the air. poisonous.
Density: 2.326
Melting point: 200 ℃ HG / T-941-76
Item Item Analysis and Purification
(AR) (CP)
Content (NH4VO3) Assay,% ≥ 99.0 98.0
Solubility in ammonia solution Qualified and qualified chloride (Cl) Chloride,% ≤ 0.0050.05
Sulfate (SO4) Sulfate,% ≤ 0.01 0.02
Carbonate (CO3) qualified iron (Fe) Iron,% ≤ 0.0050.01
Project name Item ACS Grade
Assay≥99.0%
Solubility in ammonium hydroxide Passes test
Carbonate Carbonate≤Passes test
Chloride (Cl) Chloride (Cl) ≤0.2%
Sulfate Sulfate≤0.05% sealed and stored.
Product use Microscopic staining to determine copper, barium, chromium and phosphorus.
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