Gold Amalgam Mixing ("Sha Jin")
金汞齐配制（杀金）配方
标签：金汞齐, 七青八黄, 硝酸, 古法
古法"杀金"：金箔或金粒以 1 份金配 7 份汞（所谓"七青八黄"随成色调整），加热汞至近沸，投入金令其溶解成银白膏状汞齐；也可滴硝酸促溶。操作时汞齐必须趁热涂刷。注意：全程通风橱、耐酸手套，汞蒸气与废汞按危化品严格回收，严禁任意倾倒。
Traditional "sha jin": 1 part gold to ~7 parts mercury (ratio shifts with fineness, "seven-qing eight-huang"), heat mercury near boiling, add gold to dissolve into a silvery amalgam paste; a drop of nitric aids dissolution. Apply hot. Always in a fume hood with acid gloves; treat mercury vapor and waste mercury as hazardous, never pour away. ---