Description

Phosphotungstic acid hydrate is a heteropolyacid.

Specifications

Grade	High Purity
Formula	H3PO4·12WO3·xH2O
MW	2880.17
CAS	12501-23-4
Appearance	Off-White to pale yellow crystalline powder Turning yellow on exposure to light
Assay (with Cinchonine)	65.0% ~ 70.0%
Insoluble Matter	≤0.020%
Chloride (Cl)	≤0.030%
Nitrate (NO3)	≤0.010%
Sulfate (SO4)	≤0.020%
Ammonium (NH4)	≤0.005%
Heavy Metals (as Pb)	≤0.005%
Iron (Fe)	≤0.002%
Storage	R.T

Application

Phosphotungstic acid hydrate may be used as a staining agent for the transmission electron microscope (TEM) imaging of cetyltrimethylammonium bromide (CTAB) coated gold nanorods.

It may be used in the preparation of:

Phosphotungstic acid doped ormosil hybrid networks.
Niobia supported phosphotungstic acid (PTA) catalysts.
Titanium dioxide (TiO2) nanoparticles /phosphotungstic acid (HPW) films.

Documents

COA

SDS

Phosphotungstic Acid Hydrate