引言 金在有氧存在条件下溶解于王水、氯、氰化物水溶液或硫脲溶液中,这些溶剂在金的提取冶金过程中起着重要作用。氯化银在水中的溶解度很小,故在处理一些含银的物料时,对某些溶剂的使用造成了困难。例如,氯化银膜的形成和阻碍离子的传递,使得氯、氯化铁或王水对含银物料的氧化速度减慢。 INTRODUCTION Gold is dissolved in aqua regia, chlorine, aqueous solutions of cyanide or thiourea in the presence of oxygen and these solvents play an important role in the gold extraction metallurgy. Silver chloride in water solubility is very small, so in the treatment of some silver-containing materials, the use of certain solvents caused difficulties. For example, the formation of silver chloride films and the impediment to the transfer of ions slow down the oxidation of silver-containing materials by chlorine, ferric chloride or aqua regia.