Potassium chromate is the inorganic compound with the formula (K2CrO4). This yellow solid is the potassium salt of the chromate anion. It is a common laboratory chemical, whereas sodium chromate is important industrially. It is a class two carcinogen
P 2185 (OTTO) Potassium chromate, 99% Cas 7789-00-6 - used as in qualitative inorganic analysis, e.g. as a colorimetric test for silver ion.