... PigmentChinese name: paint yellow 34English synonyms: orange (cr) color, Lead chromium, Pigment 34, Ci pigment 34, Paris yellow, But dragon ... ) Cl2Pb (OH) Cl Na2Cr2O7-2PbCrO4 2NaCl + + + H2OOperation: 1800kg will lead oxide, 19kg hydrochloric acid and 20kg mixed with water, 14m3 at ... in the mix of alkali, then add the chlorinated lead 783kg sodium dichromate, 378kg sulfuric acid, 90kg vitriolic 2000L ...