Before 1940, the literature about magnesium chromate and its hydrates was sparse, but studies starting in that year looked at its properties and solubility.

[1] It is available commercially in a variety of powders, from nanoscale to micron-sized, either as an anhydrous or hydrated form.

[5] In 2011, an undecahydrate (containing 11 molecules of water) of this compound was discovered by scientists at the University College London.

[6] Magnesium chromate hydrate should be stored at room temperature, and there is no current therapeutic use.

[7] It is a confirmed carcinogen, and can cause acute dermititis, and possibly kidney and liver damage if inhaled, so it should be treated as a hazardous waste.