Chrome Yellow

Chrome Yellow

Chrome Yellow is lead(II) chromate (PbCrO4). It occurs naturally as the mineral crocoite but the mineral itself was never used as a pigment in paintings. After the French chemist Louis Vauquelin discovered the new element chrome in 1797 lead chromate has been synthetized in the laboratory and its use as a pigment started in the second decade of the nineteenth century

Chrome yellow had been commonly produced by mixing solutions of lead nitrate and potassium chromate and filtering off the lead chromate precipitate.

American school bus, painted in traditional Chrome yellow. The first recorded use of chrome yellow as a color name in English was in 1818.