Phosphotungstic Acid In Mumbai

Shelf LifeStable under recommended storage conditions for up to 2 years

Melting Point89-90AdegC

Physical FormOther, Crystalline powder

HS Code2811.19

AppearanceWhite or cream-colored crystalline powder

PropertiesHighly soluble in water with strong acidity

StorageKeep in a cool dry place away from direct sunlight, Other

Ph Level1.3 (1% solution)

SmellOther, Odorless

FormSolid

Melting Point89 AdegC

Structural FormulaH3[PW12O40]

MOQ25 Kilograms/Kilograms

Density960 Kilogram per cubic meter (kg/m3)

FormPowder

Molecular FormulaH3PW12O40

Melting Point89 i?1/2C

GradeOther, Bio-Tech Grade

UsageFor Laboratory and Industrial

MOQ25 Kilograms/Kilograms

Structural FormulaH3PW12O40

Solubilitywater soluble

CAS No1343-93-7

StorageRoom Temperature

GradeExtra Pure

PropertiesPhosphotungstic acid can be prepared by the reaction of sodium tungstate, Na2WO4.2H2O, with phosphoric acid, H3PO4, acidified with hydrochloric acid, HCl.[2]Phosphotungstic acid solutions decompose as the pH is increased. A step-wise decomposition has been determined and the approximate compositions at various pH values are as follows:[8]pH principal components1.0 [PW12O40]3a^'2.2 [PW12O40]3a^', [P2W21O71]6a^', [PW11O39]7a^'3.5 [PW12O40]3a^', [P2W21O71]6a^', [PW11O39]7a^', [P2W18O62]6a^', [P2W19O67]10a^'5.4 [P2W21O71]6a^', [PW11O39]7a^', [P2W18O62]6a^'7.3 [PW9O34]9a^'8.3 PO43a^', WO42a^'The species [PW11O39]7a^' is a lacunary, or defective Keggin ion. The [P2W18O62]6a^' has a Dawson structure. At pH less than 8, the presence of ethanol or acetone stabilises the anion, [PW12O40]3a^', reducing decomposition.[8]Tungstophosphoric acid is thermally stable up to 400 AdegC, and is more stable than the analogous silicotungstic acid, H4SiW12O40.[9]Large quantities of polar molecules such as pyridine are absorbed into the bulk phase and not simply on the surface. Solid state NMR studies of ethanol absorbed in the bulk phase show that both protonated dimers, ((C2H5OH)2H+) and monomers, (C2H5OH2+) are present.Phosphotungstic acid is less sensitive to reduction than phosphomolybdic acid. Reduction with uric acid or iron(II) sulfate produces a brown coloured compound. the related silicotungstic acid when reduced forms a similar brown compound where one of the four W3 units in the Keggin structure becomes a metal-metal bonded cluster of three edge shared W(IV) octahedra.[10]Phosphotungstic acid is the strongest of heteropolyacids. Its conjugate base is the PW12O403a^' anion.[11] Its acidity in acetic acid has been investigated and shows that the three protons dissociate independently rather than sequentially, and the acid sites are of the same strength.[12] One estimate of the acidity is that the solid has an acidity stronger than H0 =a^'13.16,[9] which would qualify the compound as a superacid. This acidic strength means that even at low pH the acid is fully dissociated.

MOQ25 Kilograms/Kilograms

StorageRoom Temperature

Purity99%

GradeReagent

Molecular Weight2,880.2 Milligram (mg)

Molecular FormulaH3PW12O40

Melting Point89 i?1/2C

Product DescriptionWe are involved in manufacturing and supplying a wide range of Phosphotungstic Acid to our valued clients. These chemicals are soluble in water and bears a molecular weight of 2898.07. These chemicals are formulated using high grade raw material and advanced machinery in accordance with the set indu

MOQ1 Liter/Liters

TypeSchool Lab Chemicals

MOQ25 Kilograms/Kilograms

Properties25

Product DescriptionWe are a leading company in chemical industry, engaged in supplying an extensive stock of Phosphotungstic Acid . It is formulated using supreme grade comp

Product DescriptionPhosphotungstic Acid are soluble in water and bears a molecular weight of 2898.07. We regularly upgrade all the machines and process equipment for easy and correct formulation of the chemicals and offering the best range ever that breathes in quality and purity

Product DescriptionPhosphotungstic acid (PTA), tungstophosphoric acid (TPA), is a heteropoly acid with the chemical formula H3P W12O40. It normally present as a hydrate. EPTA is the name of ethanolic phosphotungstic acid, its alcohol solution used in biology. It has the appearance of small, colorless-grayish or slight

MOQ1000 Kilograms/Kilograms

Supply Ability100000 Per Month

Delivery Time3-10 Days