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Merck

31153

Ammonium metavanadate

puriss. p.a., reag. Ph. Eur., ≥99.5%

Synonym(s):

Ammonium vanadate(V)

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About This Item

Linear Formula:
NH4VO3
CAS Number:
Molecular Weight:
116.98
PubChem Substance ID:
eCl@ss:
38180409
UNSPSC Code:
12352302
EC Number:
232-261-3
MDL number:
Assay:
≥99.5%
Form:
solid
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InChI key

YBVKNHXQSRDWAA-UHFFFAOYSA-M

InChI

1S/H3N.H2O.2O.V/h1H3;1H2;;;/q;;;;+1/p-1

SMILES string

N.O[V](=O)=O

agency

USP/NF, reag. Ph. Eur.

grade

puriss. p.a.

assay

≥99.5%

form

solid

density

2.32 g/cm3 at 25 °C (lit.)

anion traces

chloride (Cl-): ≤20 mg/kg, phosphate (PO43-): ≤50 mg/kg, sulfate (SO42-): ≤100 mg/kg

cation traces

Cd: ≤10 mg/kg, Co: ≤20 mg/kg, Cu: ≤10 mg/kg, Fe: ≤10 mg/kg, Ni: ≤20 mg/kg, Pb: ≤20 mg/kg, Zn: ≤10 mg/kg

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General description

Ammonium metavanadate is an ammonium salt. It participates as an oxidizing agent for condensation reaction of o-phenylenediamine with substituted aryl aldehydes.

Application

Ammonium metavanadate may be employed in the following studies:
  • As catalyst for the synthesis of various 2-substituted aryl benzimidazoles.
  • As oxidizing agent in the determination of chlorpromazine, promethazine, trimeprazine and perphenazine in pharmaceutical samples by flow injection method.
  • Synthesis of dioxidovanadium(V) complex.
  • Preparation of Vanadia modified titania (V2O5/TiO2) photo-catalysts.

signalword

Danger

Hazard Classifications

Acute Tox. 3 Oral - Acute Tox. 4 Inhalation - Aquatic Chronic 2 - Eye Irrit. 2 - Repr. 2 - STOT RE 1 Inhalation

target_organs

Respiratory Tract

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Simona Nica et al.
Journal of inorganic biochemistry, 147, 193-203 (2015-03-10)
The Schiff-base ligand (H2salhyhNH3)Cl (1) derived from salicylaldehyde and 6-aminohexanoic acid hydrazide hydrochloride reacts with ammonium metavanadate in methanol solution to yield the dioxidovanadium(V) complex [VO2(salhyhNH3)] (2). The utilized hydrazone ligand contains a flexible and protonated amino side chain. Crystallization
Diptipriya Sethi et al.
Journal of photochemistry and photobiology. B, Biology, 144, 68-74 (2015-03-03)
Vanadia modified titania (V₂O₅/TiO₂) photo-catalysts are prepared by incipient wet impregnation method using aqueous ammonium metavanadate and anatase (Aldrich) titania. Titania with various loading concentrations of vanadia from 0 to 10 wt.% have been prepared and characterized by X-ray diffraction
Flow injection method for the assay of phenothiazine neuroleptics in pharmaceutical preparations using ammonium metavanadate.
Sultan SM.
Analyst, 116(2), 177-181 (1991)
Ammonium metavanadate: A novel catalyst for synthesis of 2-substituted benzimidazole derivatives.
Jadhav GR, et al.
Chinese Chemical Letters = Zhongguo Hua Xue Kuai Bao, 20(3), 292-295 (2009)
Kazuo Kobayashi et al.
Toxicology, 228(2-3), 162-170 (2006-09-22)
Metallothionein (MT) is a low-molecular-weight cysteine-rich protein which has a high affinity for metals. The synthesis of MT is induced by heavy metals such as cadmium and zinc. However, little is known about the induction of MT by tetravalent or

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