| 氯化亚锡还原光度法测定磷含量的实验条件研究 |
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| 引用本文： | 陆道明,邱舒,唐国钢.氯化亚锡还原光度法测定磷含量的实验条件研究[J].镇江高专学报,2011,24(1):80-82. |
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| 作者姓名： | 陆道明 邱舒 唐国钢 |
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| 作者单位： | 镇江高等专科学校化工系,江苏镇江,212003 |
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| 基金项目： | 镇江高等专科学校2010年度校级科研课题 |
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| 摘 要： | 氯化亚锡还原光度法测定磷含量时,酸度对实验的影响较大,氢离子浓度低于0.4 mol/L时,钼酸铵可以直接与氯化亚锡反应,溶液显蓝色,测定的理想酸度在0.5~0.6 mol/L;此外,显色反应后,应在10~30 m in测定完成。
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| 关 键 词： | 氯化亚锡 酸度 磷钼蓝 显色时间 |
A study on the experimental conditions of determination of phosphorus by Tin chloride Reduction spectro-photometry |
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| LU Dao-ming,Qiu Shu,Tang Guo-gang.A study on the experimental conditions of determination of phosphorus by Tin chloride Reduction spectro-photometry[J].Journal of Zhenjiang College,2011,24(1):80-82. |
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| Authors: | LU Dao-ming Qiu Shu Tang Guo-gang |
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| Institution: | LU Dao-ming,Qiu Shu,Tang Guo-gang(Chemical Engineering Department,Zhenjiang College,Zhenjiang 212003,China) |
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| Abstract: | In determination of phosphorus by Tin Chloride Reduction Spectro photometry,acidity has great impact on the expeimental results.When Hydrogen ion concentrations are below 0.4 mol/L,the ammonium molybdate reacts directly with the stannous chloride.In the process of reaction,solution is blue and ideal acidity is determined to be 0.5~0.6 mol/L or so.In addition,after color reaction,it should be measured in 10 to 30 minutes. |
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| Keywords: | tin chloride acidity phosphorus molybdenum blue chromogenic time |
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