Phosphomolybdic Acid, also called
Molybdophosphoric Acid, is a yellow crystalline solid of very high
solubility in water and several oxygenated solvents. There are a number of
salts of the phosphomolybdic acid. This heteropoly acid is tribasic and has
a tendency to undergo some hydrolytic degradation. NMR evidence has shown
that the three protons in the heteropoly anion are present as H30+
ions.




