Title: Potassium Chromate(VI)

CAS Registry Number: 7789-00-6

Additional Names: Neutral potassium chromate

Molecular Formula: CrK2O4

Molecular Weight: 194.19

Percent Composition: Cr 26.78%, K 40.27%, O 32.96%

Line Formula: K2CrO4

Properties: Lemon-yellow crystals; d 2.73; mp 975°. Sol in 1.6 parts cold, 1.2 parts boiling water. Insol in alcohol. The aq soln is alkaline to litmus or phenolphthalein.

Melting point: mp 975°

Density: d 2.73

Use: Has a limited application in enamels, finishing leather, rustproofing of metals, being replaced by the sodium salt; as reagent in analytical chemistry.