Examples of molybdate oxyanions are:
• MoO 4, in e.g. Na2MoO4 and the mineral powellite, CaMoO4;
• Mo 2O 7, as … See more

The smaller anions, MoO 4 and Mo 2O 7 feature tetrahedral centres. In MoO 4 the four oxygens are equivalent as in sulfate and chromate, with equal bond lengths and angles. Mo 2O 7 can be considered to be two tetrahe… See more

When MoO3, molybdenum trioxide is dissolved in alkali solution the simple MoO2−4 anion is produced:
As the pH is lowered, condensations ensue, with loss of water and the formation of Mo–O–Mo … See more

Molybdates are widely used in catalysis. In terms of scale, the largest consumer of molybdate is as a precursor to catalysts for hydrodesulfurization, the process by which sulfur is removed from petroleum. Bismuth molybdates… See more

Molybdate crystals as collected by gem enthusiasts with the world's best samples of crystalized Molybdate coming from Madawaska Mine. See more