Ammonium metavanadate

Ammonium vanadate

Names
IUPAC name Ammonium trioxovanadate(V)
Other names Ammonium vanadate
Identifiers
CAS Number	7803-55-6 Y
3D model (JSmol)	Interactive image
ChemSpider	19968892 Y
ECHA InfoCard	100.029.329
PubChem CID	516859
RTECS number	YWD875000
UNII	FL85PX638G Y
UN number	2859
CompTox Dashboard (EPA)	DTXSID1052533
InChI InChI=1S/H3N.3O.V/h1H3;;;;/q;;;;-1/p+1 Y Key: UXJVWJGDHIZPLD-UHFFFAOYSA-O Y InChI=1/H3N.3O.V/h1H3;;;;/q;;;;- 1/p+1/rH3N.O3V/c;1-4(2)3/h1H3;/q;-1/p+1 Key: UXJVWJGDHIZPLD-KKTKNITLAZ
SMILES [NH4+].O=[V-](=O)=O
Properties
Chemical formula	NH4VO3
Molar mass	116.98 g/mol
Appearance	white
Density	2.326 g/cm3
Melting point	>200 °C (392 °F; 473 K)[1] (decomposes)
Solubility in water	4.8 g/100 ml (20 °C)[1]
Solubility	soluble in diethanolamine, ethanolamine
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	possible mutagen, dangerous for the environment
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H332, H340, H361, H370, H372, H412
Precautionary statements	P201, P202, P260, P261, P264, P270, P271, P273, P281, P301+P310, P304+P312, P304+P340, P307+P311, P308+P313, P312, P314, P321, P330, P405, P501
NFPA 704 (fire diamond)	4 0 0
Flash point	Non-flammable
Lethal dose or concentration (LD, LC):
LD50 (median dose)	58.1 mg/kg, oral (rat)
Related compounds
Other anions	Ammonium orthovanadate Ammonium hexavanadate
Other cations	Sodium metavanadate Potassium metavanadate
Related compounds	Vanadium pentoxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Ammonium metavanadate is the inorganic compound with the formula NH₄VO₃. It is a white salt, although samples are often yellow owing to impurities of V₂O₅. It is an important intermediate in the purification of vanadium.^[2]