Ammonium heptamolybdate
Ammonium heptamolybdate is the inorganic compound whose chemical formula is (NH4)6Mo7O24, normally encountered as the tetrahydrate. It is a colorless solid, often referred to as ammonium paramolybdate or simply as ammonium molybdate, although “ammonium molybdate” can also refer to ammonium orthomolybdate, (NH4)2MoO4, and several other compounds. Potassium heptamolybdate, also obtained as the tetrahydrate, is very similar to the ammonium salt.
This page uses material from the related Wikipedia article which is released under the Creative Commons Attribution-Share-Alike License 3.0.