三氧化二铬
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Chromic trioxide and chromium hemitrioxide are determined with iodometry, the coefficient of variation of chromic trioxide is 0.056%, and the recovery of marked compound is 99.82-99.83%; the coefficient of variation of chromium hemitrioxide is 1.45%,and the recovery of marked compound is 98.55-99.26%; iron is determined by complexometric titration, the coefficient of variation of iron is 1.73%, and the recovery of marked compound is 99.12-99.23%;sulfate is determined by complexometric titration, the coefficient of variation of sulphate is 0.16%, and the recovery of marked compound is
Analysis Of The Chromium Electroplating Wastewater By Oxidation-reduction And Complexometric Titration-化学工程与工艺-本文采用氧化还原滴定法与络合滴定法对镀六价铬的废水中铬酸酐，三氧化二铬，铁和硫酸根的含量进行了测定：铬酸酐和三氧化二铬用碘量法测定，铬酸酐的变异系数为0.056%，加标回收率为99.82-99.83%，三氧化二铬的变异系数为1.45%，加标回收率为98.55-99.26%；铁用络合滴定法测定，其变异系数为1.73%，加标回收率为99.12-99.23%；硫酸根用络合返滴定法测定，其变异系数为0.16%，加标回收率为
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Chromium oxide：三氧化二铬
chromium oxide green 氧化铬绿 | chromium oxide 三氧化二铬 | chromium plated handle 镀铬拉手
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chromium sesquioxide：三氧化二铬
chromium salt 铬盐 | chromium sesquioxide 三氧化二铬 | chromium silicide 硅化铬
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chromium sesquioxide：三氧化二铬 氧化铬绿
chromium polish | 铬抛光剂 | chromium sesquioxide | 三氧化二铬 氧化铬绿 | chromium sesquisulfide | 三硫化二铬
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chromic oxide：氧化铬 三氧化二铬
chromic oxide coating sheet | 镀铬(氧化物的)薄板, 钝化薄板 | chromic oxide | 氧化铬 三氧化二铬 | chromic potassium alum | 铬钾矾 硫酸铬钾
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chromium sesquioxide：三氧化二铬 氧化铬绿
chromium polish || 铬抛光剂 | chromium sesquioxide || 三氧化二铬 氧化铬绿 | chromium sesquisulfide || 三硫化二铬
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chrome green glass：铬绿色玻璃
chrome green 三氧化二铬,(色料)铬绿 | chrome green glass 铬绿色玻璃 | chrome hardened steel 铬硬化钢
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Chromium Oxide Green：氧化铬绿
chromium ore 铬矿砂 | chromium oxide green 氧化铬绿 | chromium oxide 三氧化二铬
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chrome green glass：铬绿色玻璃
chrome green ==> 三氧化二铬,(色料)铬绿 | chrome green glass ==> 铬绿色玻璃 | chrome hardened steel ==> 铬硬化钢