56320-90-2

-20 mesh with 99.9% purity; yellow hexagonal or ortho-rhomb; used in electronics [KIR78] [CER91]

Crystallise the chromate from water (1.4mL/g) by partial evaporation in a desiccator. [Boer et al. Z Anorg Allgem Chem 191 113 1930, Hein & Herzog in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1389 1963.]