- 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.
Appearance white solid Density 2.498 g/cm3 Melting point ~90 ˚C (loses water molecule) 190 °C (decomp.) Solubility in water 65.3 g / 100ml (tetrahydrate)