Phosphotungstic acid hydrate

Phosphotungstic acid hydrate Suppliers list
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Products Intro: Product Name:Trioxotungsten - phosphoric acid hydrate (12:1:1)
CAS:12501-23-4
Purity:95%-99% Package:1kg;1USD
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Products Intro: Product Name:Phosphotungstic acid hydrate
CAS:12501-23-4
Purity:99% Package:5KG;1KG Remarks:H5O41PW12
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Products Intro: Product Name:Trioxotungsten - phosphoric acid hydrate (12:1:1)
CAS:12501-23-4
Purity:0.98 Package:1kg,2kg,5kg,10kg,25kg
Company Name: HENAN BON INDUSTRIAL CO.,LTD
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Products Intro: CAS:12501-23-4
Purity:0.99 Package:25KG;5KG;1KG;500G
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Products Intro: Product Name:Phosphotungstic Acid
CAS:12501-23-4
Purity:0.99 Package:1kg,5kg,25kgs,200kgs;bulk

Phosphotungstic acid hydrate manufacturers

Phosphotungstic acid hydrate Basic information
Product Name:Phosphotungstic acid hydrate
Synonyms:trioxotungsten - phosphoric acid (12:1) hydrate;Phosphotungstic acid hydrate 99.995% trace metals basis (Purity excludes up to 300 ppm Si);Phosphotungstic acid hydrate reagent grade;Phosphotungstic acid hydrate Vetec(TM) reagent grade;TUNGSTOPHOSPHORIC ACID LOW SODIUM NP;Hydrogen phosphotungstate hydrate (H3PW12O40.xH2O);12Tungsto(Ⅵ) Phosphoric Acid n-Hydrate;Tungstophosphoric acid hydrate for analysis EMSURE
CAS:12501-23-4
MF:H6O8PW
MW:348.86
EINECS:603-020-3
Product Categories:inorganic acid
Mol File:12501-23-4.mol
Phosphotungstic acid hydrate Structure
Phosphotungstic acid hydrate Chemical Properties
Melting point ~95 °C(lit.)
storage temp. room temp
form Solid
color White
PH1.3 (20g/l, H2O, 20℃)
Water Solubility soluble
Sensitive Hygroscopic
Stability:hygroscopic
CAS DataBase Reference12501-23-4(CAS DataBase Reference)
Safety Information
Hazard Codes C,Xi
Risk Statements 34-36/37/38
Safety Statements 26-36/37/39-45-24/25-37/39-36
RIDADR UN 3260 8/PG 3
WGK Germany 3
RTECS TH5650000
3-10-23
TSCA Yes
HS Code 2811 19 80
HazardClass 8
ToxicityLD50 orally in Rabbit: 3300 mg/kg
MSDS Information
ProviderLanguage
ACROS English
SigmaAldrich English
ALFA English
Phosphotungstic acid hydrate Usage And Synthesis
Chemical PropertiesCrystalline
UsesPhosphotungstic acid hydrate has been a useful histology stain for cell specimens.
Uses12-Tungstophosphate hydrate is used in histology as a component for staining of cell specimens. It binds to fibrin, collagen and fibers of connective tissues. It is also used to replace the anions of dyes from these materials. In solution, it acts as a homogeneous catalyst and involved in the hydrolysis of propene to give 2-propanol. It is supported with alumina and silica and act as a heterogeneous catalyst involved in the dehydration of 2-propanol to propene and methanol to hydrocarbons. In analytical chemistry, it is used to precipitate proteins and termed as "universal" precipitant for polar proteins.
Purification MethodsA few drops of conc HNO3 are added to 100g of phosphotungstic acid dissolved in 75mL of water, in a separating funnel, and the solution is extracted with diethyl ether. The lowest of the three layers, which contains a phosphotungstic acid-ether complex, is separated, washed several times with 2M HCl, then with water and again extracted with ether. Evaporation of the ether under vacuum with mild heating on a water bath gives crystals which are dried under vacuum and ground [Matijevic & Kerker, J Am Chem Soc 81 1307 1959].
Phosphotungstic acid hydrate Preparation Products And Raw materials
Preparation Products1,1'-SPIROBIINDANE-7,7'-DIOL-->2,2,6,6-Tetramethylpiperidinooxy
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