Phosphotungstic Acid In Delhi

MOQ25 Kilograms/Kilograms

FormPowder

Molecular FormulaH3PW12O40

Melting Point89 i?1/2C

MOQ25 Kilograms/Kilograms

ApplicationLab Chemicals

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.

StorageRoom Temperature

MOQ25 Kilograms/Kilograms

Purity99%

SolubilityIn Water

Formo, n, e, ], [, N

MOQ25 Kilograms/Kilograms

Molecular Weight2,880.2 Milligram (mg)

GradeReagent

Purity99%

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

Product DescriptionThe Sulphanilic Acid ACS Grade is a colorless crystalline solid that readily forms diazo compounds and is used to make dyes and sulpha drugs. It is produced from sulphonation of aniline and has a unusually high melting point. It is supplied to cater the uses of pharmaceutical, agricultural, photogra

Product DescriptionOur organization provide Sulphosalicylic Acid that is available in white color. These products are 25 kg HDPE drum or fiber drum for grade I. Moreover, our range of Sulphosalicylic Acid is known to be a ACS reagent and are extensively used in varied industries owing to their accurate composition. Fu

MOQ10 Kilograms/Kilograms

Molecular Weight1825.25 Grams (g)

Molecular FormulaH3 Pmo12 O40

ClassificationInorganic Acids

MOQ10 Kilograms/Kilograms

Molecular FormulaNa Aso2

Molecular Weight129.9 Grams (g)

ClassificationInorganic Acids

Product DescriptionFollowing Specification of PHOSPHOTUNGSTIC ACID : MATERIAL : PHOSPHO TUNGSTIC ACID APPEARANCE : WHITE FINE CRYSTALS ASSAY : 99% MIN MOLECULAR WT : 6628 MAXIMUM IMPURITIES: INSOLUBLE MATTER : MAX 0.01 % CHLORIDE (cl) : MAX 0.01 % HEAVY METALS (AS pb) : MAX 0.005% IRON (AS fe) : MAX 0.003% NITRATE : M

Product DescriptionWe are one of the known manufacturer and supplier of Phosphotungstic Acid. Manufacturing in all grades and supplying to leading laboratory re packers and exports the same to united states, brazil, vietnam and turkey. FOLLOWING SPECIFICATION OF PHOSPHOTUNGSTIC ACID : * MATERIAL : PHOSPHO TUNGSTIC ACI

MOQ10 Kilograms/Kilograms

Molecular Weight2880.2 Grams (g)

ApplicationIndustrial

GradeLR AR TECH

Product DescriptionFor the varied requirements of our clients, we are engaged in manufacturing and supplying of Sillico Tungstic Acid in Vadodara, Gujarat, India. Procured from the trusted vendor, the offered powder is processed using the latest processing techniques as per the set industry standard norms. The offered

Product DescriptionRiding on our industrial knowledge and proficiency of this industry, we are considered as a leading manufacturer, exporter and supplier of AR and ACS Phosphotungstic Acid from Dhule, Maharashtra, India. Phosphotungstic acid has been also used to precipitate different types of dyes as "lakes", like b

MOQ25 Kilograms/Kilograms

Properties25