Item Index Index Index Index
A.R. C.P. Electro-plating grade Catalyst grade
Assay % ≥99.0 ≥98.0 ≥99.5 ≥99.0
Water solubility test Pass Pass Pass Pass
Chlorides(CL) % ≤0.005 ≤0.02 ≤0.001 ≤0.02
Sulphates(SO4)% ≤0.01 ≤0.02 ≤0.005 ≤0.02
Carbonate(CO3)% —— —— Pass Pass
Iron (Fe)% ≤0.005 ≤0.01 ≤0.001 ≤0.005
Arsenic (As)% —— —— ≤0.0002 ≤0.0002
Heavy metal(Pb)% —— —— ≤0.001 ≤0.005
Appearance similar to white powder


Packing& Storage

Packing 25kg cardboard drum, lined with double-layer plastic bag
Storage 20℃, 2 years.
Shipping Room temperature in China; may vary elsewhere


General Information

1.1 Chemical & Physical Properties

Common Names Ammoniun metavanabate | Ammonium oxido(dioxo)vanadium
CAS No. 7803-55-6 Boiling Point (℃) N/A
Molecular Weight 116.978 Melting Point (℃) 200 °C
Appearance White powder Vapor Specific Gravity N/A
HS Code 28419030 Flash Point (℃) N/A
Solubility Soluble in hot water and dilute ammonia, slightly soluble in cold water, insoluble in ethanol. Autoignition Temperature (℃) N/A


1.2 Safety Information

Safety Phrases  S26-S36/37/39-S45-S37/39-S22-S28
RIDADR  UN 2859 6.1/PG 2
WGK Germany 3
Packaging Group II
Hazard Class 6.1


Inhalation Cough. Sore throat. Use local exhaust or breathing protection. Fresh air, rest.
Skin Redness. Burning sensation. Itching. Protective gloves. Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes Redness. Pain. Wear safety goggles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion Abdominal pain. Nausea. Vomiting. Do not eat, drink, or smoke during work. Wash hands before eating. Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention .


1.3 Synthetic Route

After roasting the mixture of ferrovanadium powder and charcoal powder in a certain proportion by alkali hydrolysis method, sodium vanadate is generated by reaction with liquid alkali, and the clear liquid is concentrated and filtered, neutralized to pH 7.5~8 with hydrochloric acid, filtered, the filtrate is heated to 70~80 °C, ammonium chloride solution is added under stirring, and the precipitate is centrifuged, washed and dried to obtain ammonium metavanadate crystals.