ACS reagent, 99,5%

81.0-83.0% MoO3 basis

Synonym: Ammonium heptamolybdate tetrahydrate,

 Molybdic acid ammonium salt tetrahydrate

CAS Number 12054-85-2

Linear Formula (NH4)6Mo7O24·4H2O

EC Number 234-320-9

MDL number MFCD00167059

Uses

- as an analytical reagent to measure the amount of phosphates, silicates, arsenates and lead in aqueous solution (e.g. pigments, river water, sea water etc.)

- in the production of molybdenum metal and ceramics

- in the preparation of dehydrogenation and desulfurization catalysts

-in the fixing of metals

- in electroplating

- in fertilizers for crops

- as a negative stain in biological electron microscopy, typically in the 3–5% (vol/vol) concentration range and in the presence of trehalose; or at saturated concentration to perform cryo-negative staining.

For the detection of recreational drugs as a component of the Froehde reagent.