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Ammonium metavanadate information


Ammonium vanadate
Ammonium vanadate
Photo of a sample of ammonium vanadate
Names
IUPAC name
Ammonium trioxovanadate(V)
Other names
Ammonium vanadate
Identifiers
CAS Number
  • 7803-55-6 checkY
3D model (JSmol)
  • Interactive image
ChemSpider
  • 19968892 checkY
ECHA InfoCard 100.029.329 Edit this at Wikidata
PubChem CID
  • 516859
RTECS number
  • YWD875000
UNII
  • FL85PX638G checkY
UN number 2859
CompTox Dashboard (EPA)
  • DTXSID1052533 Edit this at Wikidata
InChI
  • InChI=1S/H3N.3O.V/h1H3;;;;/q;;;;-1/p+1 checkY
    Key: UXJVWJGDHIZPLD-UHFFFAOYSA-O checkY
  • 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
 GHS06: ToxicGHS08: Health hazard
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)
NFPA 704 four-colored diamondHealth 4: Very short exposure could cause death or major residual injury. E.g. VX gasFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
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).
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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]

  1. ^ a b John Rumble (June 18, 2018). CRC Handbook of Chemistry and Physics (99th ed.). CRC Press. pp. 4–40. ISBN 978-1138561632.
  2. ^ Günter Bauer, Volker Güther, Hans Hess, Andreas Otto, Oskar Roidl, Heinz Roller, Siegfried Sattelberger "Vanadium and Vanadium Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, 2005, Wiley-VCH, Weinheim. doi:10.1002/14356007.a27_367

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Ammonium metavanadate

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Ammonium metavanadate is the inorganic compound with the formula NH4VO3. It is a white salt, although samples are often yellow owing to impurities of...

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Mandelin reagent

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alkaloids as well as other compounds. It is composed of a mixture of ammonium metavanadate and concentrated sulfuric acid. Its primary use is for the detection...

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Sodium metavanadate

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Sodium metavanadate is the inorganic compound with the formula NaVO3. It is a yellow, water-soluble salt. Sodium metavanadate is a common precursor to...

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Oxyanion

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The same structure occurs in so-called meta-vanadates, such as ammonium metavanadate, NH4VO3. The formula of the oxyanion SiO2−3 is obtained as follows:...

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Thermochromism

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solid pale tan material transforming at 60–62 °C to orange color. Ammonium metavanadate is a white material, turning to brown at 150 °C and then to black...

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Covellite

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associated sulfides it was derived from. Experimental evidence shows ammonium metavanadate (NH4VO3) to be a potentially important catalyst for covellite's...

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Vanadinite

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dissolved in water and then treated with ammonium chloride to give an orange-coloured precipitate of ammonium metavanadate. This is then melted to form a crude...

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List of UN numbers 2801 to 2900

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UN 2859 6.1 Ammonium metavanadate UN 2860 6.1 (UN No. no longer in use) Vanadium trioxide (UN No. no longer in use) UN 2861 6.1 Ammonium polyvanadate...

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Vanadates

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Vanadates can refer to: Ammonium metavanadate Sodium vanadate (disambiguation) This disambiguation page lists articles associated with the title Vanadates...

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Color of chemicals

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(vanadite) V 4O2− 9   Brown Vanadium(V) (pervanadyl) VO+ 2   Yellow Metavanadate VO− 3 Colorless Orthovanadate VO3− 4 Colorless Chromium(II) Cr2+   Bright...

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Vanadate

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examples of polymeric "infinite" ions are [VO 3]n− n in e.g. NaVO3, sodium metavanadate [V 3O 8]n− n in CaV6O16 In these ions vanadium exhibits tetrahedral,...

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List of CAS numbers by chemical compound

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7664–41–7 NH4Cl ammonium chloride 12125–02–9 NH4HCO3 ammonium bicarbonate 1066–33–7 NH4NO3 ammonium nitrate 6484–52–2 NH4OH ammonium hydroxide 1336–21–6...

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Glossary of chemical formulae

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NH4+ ammonium ion 14798-03-9 (NH4)3N ammonium nitride NH4Br ammonium bromide 12124-97-9 NH4CO2NH2 ammonium carbamate 1111-78-0 (NH4)2CO3 ammonium carbonate...

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Vanadium

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roasting crushed ore with NaCl or Na2CO3 at about 850 °C to give sodium metavanadate (NaVO3). An aqueous extract of this solid is acidified to produce "red...

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Sodium decavanadate

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optimized by maintaining a pH range of 4–7. Typical side products include metavanadate, [VO3]−, and hexavanadate, [V6O16]2−, ions. The decavanadate ion consists...

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