|IUPAC name||Ammonium molybdate|
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|Molar mass||196.02g mol-1|
|Appearance||white crystalline solid|
|Density||2.498 g cm-3|
|Except where noted otherwise, data are given for|
materials in their standard state
(at 25 °C, 100 kPa)
Infobox disclaimer and references
Ammonium Molybdate is an odourless crystalline compound ranging in colour from white to yellow-green. Its chemical formula is as follows; (NH4)6Mo7O24.4H2O.
It is also called molybdic acid hexammonium salt tetrahydrate, ammonium molybdate tetrahydrate, and ammonium heptamolybdate tetrahydrate.
- as an analytical reagent to find the presence of phosphates, silicates, arsenates and lead in pigments
- in the production of molybdenum metal and ceramics
- in the preparation of dehydrogenation and desulphurisation 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 [2,3].
- Harris, J.R. and Horne, R.W. 1991. Negative staining, in Harris J. R. (Ed.), Electron Microscopy in Biology, Oxford University Press, Oxford.
- Adrian, M., Dubochet, J., Fuller, S.D. and Harris, J.R. 1998. Cryo-negative Staining. Micron 29, 145-160.
- De Carlo, S., El-Bez, C., Alvarez-Rúa, C., Borge, J. and Dubochet, J. 2002. Cryo-negative staining reduces electron-beam sensitivity of vitrified biological particles. J. Struct. Biol. 138, 216-226.