Pierre Joseph Macquer

Pierre-Joseph Macquer (9 October 1718 – 15 February 1784) was an influential French chemist. He is known for his Dictionnaire de chymie (1766). He was also involved in practical applications, to medicine and industry, such as the French development of porcelain. He worked as a chemist in industries, such as the Manufacture de Sèvres or the Gobelins Manufactory. He was an opponent of Lavoisier's theories. The scholar Phillipe Macquer was his brother. In 1752 Macquer showed that the pigment Prussian blue could be decomposed by alkaline solutions into a solid iron hydroxide compound and an aqueous solution of Ferrocyanide.