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PHOSPHOTUNGSTIC ACID |
| Synonyms. Phosphotungstic Acid; Tungsten hydroxide oxide phosphate; Tungstophosphoric acid; Oxotungsten hydroxide phosphate; 12-Wolframophosphoric acid; Phosphane tungsten tetracontahydrate; |
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| PRODUCT IDENTIFICATION | |
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CAS RN |
1343-93-7 (anhydrous), 12501-23-4 (hydrate) |
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EINECS RN |
215-682-7, 235-087-6 |
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FORMULA |
H3[P(W3O10)4] |
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MOLE WEIGHT |
2880.05 |
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H.S CODE |
2811.19.6090 |
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SMILES |
O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O .O.O.O. O.O.O.O.O. O.O.O.O.P.[W].[W].[W].[W].[W].[W].[W].[W].[W].[W].[W] .[W] |
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CLASSIFICATION |
Heteropolyacid |
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EXTRA NOTES |
Tungsten hydroxide oxide phosphate. A white or slightly yellowish-green, slightly efflorescent crystal or crystalline powder. It is used as a reagent for alkaloids and many other nitrogen bases, for phenols, albumin, peptone, amino acids, uric acid, urea, blood, and carbohydrates. (From Merck Index, 11th ed) [MeSH] |
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| PHYSICAL AND CHEMICAL PROPERTIES | |
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PHYSICAL STATE. |
white to pale yellow crystalline powder |
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MELTING POINT |
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BOILING POINT |
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DENSITY |
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SOLUBILITY IN WATER |
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| SOLVENT SOLUBILITY |
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VAPOR DENSITY |
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log P(octanol-water) |
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VAPOR PRESSURE |
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AUTOIGNITION TEMP |
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| pK |
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REFRACTIVE INDEX |
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FLASH POINT |
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| STABILITY AND REACTIVITY | |
| STABILITY | Stable under normal conditions. |
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INCOMPATIBLE MATERIALS |
Strong oxidizing agents, Strong bases |
| POLYMERIZATION |
Has not been reported |
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NFPA RATINGS |
Health: 3, Flammability: 0, Reactivity: 0 |
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| EXTERNAL LINKS & GENERAL DESCRIPTION |
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USA.gov - Phosphotungstic Acid Wikipedia Linking - Tungstic Acid Google Scholar Search - Phosphotungstic Acid U.S. National Library of Medicine - Phosphotungstic Acid PubChem Compound Summary - Phosphotungstic Acid http://www.ebi.ac.uk/chebi/ - Phosphotungstic Acid http://www.ncbi.nlm.nih.gov/ - Phosphotungstic Acid Material Safety Data Sheet - Phosphotungstic Acid EPA - Substance Registry Services - Phosphotungstic Acid |
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| SALES SPECIFICATION | |
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APPEARANCE |
white to pale yellow crystalline powder (turning yellow on exposure to light) |
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ASSAY |
65% ~ 70% |
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INSOLUBLE MATTER |
0.01% max |
| CHLORIDE (Cl) |
0.03% max |
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NITRATE (NO3) |
50ppm max |
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SULFATE (SO4) |
0.02% max |
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AMMONIUM |
0.5% max |
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IRON (Fe) |
10ppm max |
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HEAVY METALS |
10ppm max |
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| TRANSPORT & REGULATORY INFORMATION | |
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UN NO. |
3260 |
| HAZARD CLASS |
8 |
| PACKING GROUP | II |
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| SAFETY INFORMATION | |
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HAZARD OVERVIEW |
GHS (Globally Harmonised System) Classification: Skin corrosion. Serious eye damage. Hazard statements: Causes severe skin burns and eye damage. Potential Health Effects: Eyes - Causes eye burns. Skin - May be harmful if absorbed through skin. Causes skin burns. Ingestion - Maybe harmful if swallowed. Inhalation - May be harmful if inhaled. Material is extremely destructive to the tissue of the mucous membranes and upper respiratory tract. |
| SIGNAL WORD | Danger |
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PICTOGRAMS |
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HAZARD STATEMENTS |
H314 |
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P STATEMENTS |
P280-P305 + P351 + P338-H310 |
| EC DIRECTIVES |
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| HAZARD CODES |
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RISK PHRASES |
34 |
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SAFETY PHRASES |
26-36/37/38 |
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| PACKING |
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Preserved in light-resistant and well-closed bottles |
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