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AMMONIUM METAVANADATE

CAS NUMBER: 7803-55-6

EC NUMBER: 232-261-3

MOLECULAR FORMULA: NH4VO3

MOLECULAR WEIGHT: 116.98

 


Ammonium metavanadate is the inorganic compound with the formula NH4VO3. 
Ammonium metavanadate is a white salt, although samples are often yellow owing to impurities of V2O5. 

Ammonium metavanadate is an important intermediate in the purification of vanadium.
Ammonium metavanadate appears as a white crystalline powder. 

Slightly soluble in water and denser than water. 
Decomposes at 410°F. 

Ammonium metavanadate is used as a dryer for paints and inks, and for dyes. 
Loses ammonia upon heating.

Ammonium metavanadate, 0.25% solution. 
Dissolve 1.25 g of NH4VO3 in 250 ml of hot water. 

Cool the solution and add 10 ml of cone. HNO3. 
Allow the solution to stand overnight, filter if necessary, and dilute with water to 500 ml. 

Store the solution in a polyethylene container.
Ammonium metavanadate was dissolved in H2O to give solutions (0.04-2.00 × 10− 2 mol dm− 3). 

A hundred milligrams of unmodified TiO2 or APS-TiO2 was added to 30 cm3 of NH4VO3 solution and stirred to make VO3− adsorb at room temperature for 24 h. 
The samples were then collected by filtration under suction and dried at 110 °C for 1 h. 

The amount of Ammonium metavanadate adsorbed was determined using a UV-vis spectrometer from the difference in the concentrations of the solution before and after addition of TiO2.
Ammonium metavanadate is an inorganic compound represented by the formula NH4VO3. 

As a crystalline solid, it is white, but samples can sometimes appear slightly yellow. 
Ammonium metavanadate has a molecular weight of 116.977 g/mol.

Ammonium metavanadate is denser than water and slightly soluble. 
Ammonium metavanadate is somewhat toxic, particularly to the skin, and should always be handled with care. 

Ammonium metavanadate is stable under normal storage conditions.
The chemical is primarily used as an intermediate or as an oxidizing agent. 

Ammonium metavanadate is commonly used as a substrate in the synthesis of silver vanadate, manganese vanadate, and vanadium oxide. 
Ammonium metavanadate can catalyze the synthesis of octahydroquinazolinone derivatives and azalactone derivatives.

Ammonium metavanadate is most often used for the purification of vanadium. 
Ammonium metavanadate is usually purified from aqueous extracts of ore, selectively precipitated for ammonium metavanadate. 

Ammonium metavanadate is made up of vanadate ions with the addition of ammonium salts.
Ammonium metavanadate is a powerful alloy. 

Ammonium metavanadate is used prolifically within the steel industry and over 85% of all vanadium used industrially is used for steel production. 
Ammonium metavanadate is commonly alloyed with aluminum, titanium, and other high-performance metals. 

Ammonium metavanadate imbues strength and toughness and is useful for a variety of applications including high-test aircraft, gears, axles, cladding, and even for superconducting.
Ammonium metavanadate is hygroscopic in nature. 

Ammonium metavanadate is incompatible with strong oxidizing agents and strong acids.
A white crystalline powder. 

Slightly soluble in water and denser than water. 
Decomposes at 410°F. 

Used as a dryer for paints and inks, and for dyes. 
Loses ammonia upon heating.

Ammonium metavanadate can be used as a catalyst for organic synthesis. 
Thermal decomposition of ammonium metavanadate yields vanadium pentoxide, V205, which is widely used as catalyst and precursor for other vanadium compounds and metallic vanadium itself. 

Ammonium metavanadate is a reagent in the analytical chemistry and a developer in the photography industry. 
Ammonium metavanadate is used in dyeing and printing in the textile industry. 

Ammonium metavanadate is also used as dryer for paints.
Ammonium metavanadate is usually available in various concentration.

Ammonium vanadate was dissolved in a solution of water and ammonia water, and activated carbon was added while heating to 60 to 70 ° C., left for 30 minutes, and filtered. 
Ammonium nitrate was added to the filtrate and The Ammonium vanadate crystals were filtered off with suction, washed with water and then with a small amount of ethanol. 

In not more than 20~25 deg C drying, get pure ammonium metavanadate.
Ammonium metavanadate is a kind of inorganic chemical that is white crystalline powder. 

Ammonium metavanadates main applications cover chemical reagent, catalyst, drier and pigment.  
Ammonium metavanadate dissolves in hot water and dilute ammonia water.

Ammonium metavanadate tend to absorb moisture in air. 
When heating,  ammonia and water would lose. 

Ammonium metavanadate dissolves in hot water and dilute ammonia water and faintly dissolve in cold water, however not in ethyl alcohol. 
Ammonium metavanadate has some other product names like ammonium vanadate and  ammonium vanadium oxide, which refer to same chemical.

 

 

USES:

Ammonium metavanadate is often purified from aqueous extracts of slags and ore by selective precipitation of ammonium metavanadate. 
Ammonium metavanadates can behave as structural mimics of phosphates, and in this way they exhibit biological activity.

Ammonium metavanadate is used to prepare Mandelin reagent, a qualitative test for alkaloids.
Ammonium metavanadate is one of the most common laboratory vanadate reagent.

Ammonium metavanadate is used as a catalyst in organic synthesis, and as an analytical reagent in laboratories. 
Ammonium metavanadate is employed in the preparation of vanadate. 

Ammonium metavanadate acts as a sensor for the determination of N-acetyltransferase activity in humans. 
Further Ammonium metavanadate finds use in dyes, varnishes, indelible inks, drier for paints, and in photography. 

With copper carbonate, Ammonium metavanadate has been shown to enhance the catalytic activities. 
Ammonium metavanadate is an environmental-friendly catalyst to prepare alpha-hydroxyphosphonate derivatives in high yield through the reaction of aryl/heteroaryl aldehydes with triethylphosphonate derivatives.

Ammonium metavanadate belongs to the vanadates family and contains many different oxidative states. 
Ammonium metavanadate is the most common laboratory vanadate reagent, along with potassium metavanadate, KVO3. 

Ammonium vanadate is used for the preparation of catalysts for organic and inorganic synthesis. 
Ammonium metavanadate is also used for the production of colors and paints as drying agents for paintings and inks.

Vanadium is usually purified from slag and ore extracts by selective precipitation of ammonium metavanadate. 
The material is then calcined to give vanadium pentoxide.

Vanadates can act as structural mimics of phosphates.
Ammonium metavanadate is used to prepare Mandelin's reagent, which is a qualitative test for alkaloids.

 

 

APPLICATIONS:

Ammonium metavanadate oxide is used as a catalyst in organic synthesis, and as an analytical reagent in laboratories. 
Ammonium metavanadate is employed in the preparation of vanadate. It acts as a sensor for the determination of N-acetyltransferase activity in humans. 

Further Ammonium metavanadate finds use in dyes, varnishes, indelible inks, drier for paints, and in photography. 
Ammonium metavanadate has been shown to enhance the catalytic activities.

Ammonium metavanadate is an environmental-friendly catalyst to prepare alpha-hydroxyphosphonate derivatives in high yield through the reaction of aryl/heteroaryl aldehydes with triethylphosphonate derivatives.
Ammonium metavanadate is a commonly employed vanadate preparation

Ammonium metavanadate is a kind of minor metal salts. 
Ammonium metavanadate serve the purpose of chemical reagents, catalyzer, dryer and mordant usually, further which is also widely used as glaze in ceramics. 

Ammonium metavanadate is is raw material in producing vanadium pentoxide. 
Their property is very close. 

In instrumental analysis, Ammonium metavanadate acts as reagent to analyze phenols by thin layer chromatography and penicillin and thiodiphenylamine by spectrophotometry method.
Ammonium metavanadates (pentoxide and certain vanadates) are used as catalyst in the oxidation of SO2 to SO3; ethanol to acetaldehyde; in the syntheses of phthalic and maleic anhydrides; in the manufacture of polyamides (nylon); sugar to oxalic acid, and anthracene to anthraquinone. 
Ammonium metavanadate is also used for the manufacture of yellow glass; inhibiting UV light transmission in glass; depolarizer; as developer in photography; and as mordant in dyeing and printing fabrics and in manufacture of aniline black in form of ammonium vanadate.

 

-dyes 

-varnishes 

-indelible inks 

-drier for paints and inks 

-photography 

-analytical reagent

 


STRUCTURE:

Ammonium metavanadate is prepared by the addition of ammonium salts to solutions of vanadate ions, generated by dissolution of Ammonium metavanadate in basic aqueous solutions, such as hot sodium carbonate. 
Ammonium metavanadate precipitates as a colourless solid.

This precipitation step can be slow.
Ammonium metavanadate adopts a polymeric structure consisting of chains of [VO3]-, formed as corner-sharing VO4 tetrahedra. 
Ammonium metavanadates are interconnected via hydrogen bonds with ammonium ions.

 


PROPERTIES:


-Assay Percent Range: 99.5%

-Molecular Formula: H4NO3V

-Linear Formul: NH4VO3

-MDL Number: MFCD00011430

-Fieser: 01,1057

-Merck Index: 15,565

 

 

SPECIFICATIONS:


-Compound Formula: H4NO3V

-Molecular Weight: 116.98

-Appearance: White to Off-white Powder

-Melting Point: 200 °C

-Density: 2.32 g/cm3 at 25 °C

-Monoisotopic Mass: 116.963081

 

 


CHEMICAL IDENTIFIERS:


-Linear Formula: NH4VO3

-MDL Number: MFCD00011430

-EC No.: 232-261-3

-Pubchem CID: 516859

-IUPAC Name: azanium; oxido (dioxo)vanadium

-SMILES: [O-][V](=O)= O.[NH4+]

-InchI Identifier: InChI=1S/H3N. 3O.V/h1H3;;;;/q;;;-1;/ p+1

-InchI Key: UNTBPXHCXVWYOI-UHFFFAOYSA-O

 

 

CHEMICAL PROPERTIES:


-Formula: NH4VO3

-Formula Weight: 116.98

-Form: Powder

-Melting point: 200° dec.

-Density: 2.33

-Storage & Sensitivity: Ambient temperatures.

 

 

SOLUBILITY:

Slightly soluble in water. 
Soluble in dilute ammonia Slightly soluble in water. 

Soluble in dilute ammonia and diethanolamine. 
Insoluble in ether and alcohol.

Ammonium metavanadate is slightly soluble in cold water but more soluble in hot water. 
Ammonium metavandate is not soluble in a saturated solution of NH4CL, in ethanol and in ether.

 

 

PHYSICOCHEMICAL PROPERTIES:


-Density: 2.3 g/cm3 (20 °C)

-Melting Point: 200 °C (decomposition)

-pH value: 7 (5.1 g/l, H₂O, 20 °C)

-Bulk density: 1000 kg/m3

-Solubility: 5.1 g/l

 

 

SYNONYM:

7803-55-6
AMMONIUM VANADATE
Ammonium monovanadate
Ammonium vanadate(V)
Ammonium vanadium oxide
azanium;oxido(dioxo)vanadium
Vanadic acid, ammonium salt
UNII-FL85PX638G
Ammonium-m-vanadate
Vanadate (VO31-), ammonium
Vanadate (VO31-), ammonium (1:1)
FL85PX638G
MFCD00011430
Ammonium metavanadate, ACS reagent
Ammonium metavanadate, 99.5%, for analysis
Ammonium vanadate (VAN)
Ammonium vanadium trioxide
Ammonium metavanadate, 99.996%, (trace metal basis)
RCRA waste number P119
Ammonium trioxovanadate(1-)
CCRIS 4120
Ammonium metavanadate (NH4VO3)
Ammonium vanadate ((NH4)VO3)
HSDB 6310
Vanadate (VO3(1-)), ammonium
Ammonium vanadium oxide (NH4VO3)
EINECS 232-261-3
UN2859
Vanadic acid (HVO3), ammonium salt
NSC 215196
Vanadic acid, (HVO3), ammonium salt
Ammonium meta-Vanadate
RCRA waste no. P119
H4NO3V
EC 232-261-3
HSDB 6038
EINECS 234-351-8
AKOS030228605
Ammonium metavanadate [UN2859] 
FT-0689064
Vanadic acid (HVO3), ammonium salt (8CI)
X5994

 

 


IUPAC NAME:

Ammonium metavanadate
Ammonium metavanadate
Ammonium trioxovanadate
ammonium trioxovanadate
Ammonium trioxovanadate
ammonium trioxovanadate(1-)
Ammonium trioxovanadate(V)
ammonium trioxovanadate(V)
ammonium trioxovanadiumuide
Ammoniummonovanadat
Ammoniumtrioxovanadat
azanium;oxido(dioxo)vanadium
hydroxy(dioxo)vanadium

 

 

 

 

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