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Phosphotungstic Acid

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For Research Use Only | Not For Clinical Use
CATAPB12501234-1
CAS12501-23-4
Structure
SynonymsTungstophosphoric acid; 12-Phosphotungstic acid
IUPAC Namephosphoric acid;trioxotungsten;hydrate
Molecular Weight2880.2
Molecular FormulaH5O41PW12
DescriptionPhosphotungstic acid (PTA) or tungstophosphoric acid (TPA) is a compound that belongs to the family of heteropolyacids. Chemically, it is a type of polyoxometalate, containing metal oxide clusters. PTA has many potential applications, such as a catalyst, histology stain component, as a negative stain in transmission electron microscopy, etc.
Solubility200 g/100 ml iIn water
AppearanceWhite to off-white to yellow to beige to grey solid powder or crystals
Loss On DryingMax. 15%
Pubchem CID16212977
UsesPhosphotungstic acid (PTA) is used in histology for staining specimens. It helps enhance the contrast of biological samples, allowing for better visualization of cellular structures.
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