Chrome Yellowis a kind ofyellow powder, the isomorphous crystal mixture of lead chromate and lead sulphate. It is also known as Pigment Yellow 34, a kind of yellow pigment with excellent hiding power, color ability, heat-resistance and good dispersibility. It does not dissolve in water and oil, but is soluble in mineral acid and alkali solution. It can react with hydrogen sulfide, toxic. C.I. Pigment No.: P.Y. 34.