Analytical chemistry- used for detection and estimation of alkaloids and other compounds. Pharmaceutical testing- used as a reagent in identification tests. Histology and staining- used in biological tissue staining. Chemical analysis- precipitating reagent for proteins and basic compounds.

Main purposes of phosphomolybdotungstic acid- Detect and identify certain organic compounds. Form precipitates in analytical tests. Support laboratory and pharmaceutical analysis.

Phosphomolybdotungstic acid is a yellow-colored heteropoly acid containing phosphorus molybdenum and tungsten. It is commonly used as a laboratory reagent in analytical chemistry. Strong acidic inorganic compound. Sensitive to reduction which may produce a greenish color.