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鉻酸洗液的配制方法和使用注意事項
發布時間: 2016年07月09日 【字體:

  配制方法:


  將20g重鉻酸鉀溶于40ml水中,在不斷攪拌下將400ml濃硫酸緩慢加入。


  使用注意事項:


  1.用于洗滌被有機物和油污染的干燥的玻璃器皿。


  2.具有強腐蝕性,防止燒傷皮膚、衣物。


  3.可反復使用,若洗液變成墨綠色則失效,可加入濃硫酸將Cr3+氧化后繼續使用。


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