In order to reduce tungsten to W5 + completely, titanium trichloride or stannous chloride were generally used as reducing agents.
为使钨完全还原为5价，通常单独使用三氯化钛或氯化亚锡作还原剂。
Rhodium in rhodium plating bath was determined by spectrophotometric method using potassium iodine and stannous chloride as chromogenic agent .
以碘化钾和氯化亚锡作显色剂，用光度法测定镀铑溶液中的铑。
Rhodium in rhodium plating bath was determined by spectrophotometric method using potassium iodine and stannous chloride as chromogenic agent .
以碘化钾和氯化亚锡作显色剂，用光度法测定镀铑溶液中的铑。
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