Nomenclature
CAS number: 7789-00-6
Chromic acid (H
2CrO
4) potassium salt
(1:2); neutral potassium chromate.
CrK
2O
4; mol wt 194.19.
Cr 26.78%, K 40.27%, O 32.96%.
K
2CrO
4.
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.Use
Has a limited application in enamels, finishing
leather, rustproofing of metals, being replaced by the sodium salt.
Oxidizing agent in analytical chemistry.