| 工业级二水合磷酸二氢钠含量测定方法的研究 |
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| 引用本文： | 蔡佳梓,陈妙兰,梁敬端.工业级二水合磷酸二氢钠含量测定方法的研究[J].精细与专用化学品,2014(6):30-32. |
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| 作者姓名： | 蔡佳梓 陈妙兰 梁敬端 |
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| 作者单位： | 广东省江门市质量计量监督检测所; |
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| 摘 要： | 提出了用电位法测定工业二水合磷酸二氢钠含量.电位法是利用校准过的酸度计,用氢氧化钠标准溶液滴定至试样溶液pH为9.3.并且采用重量法、中和法与电位法进行比对.结果表明,用电位法测定工业二水合磷酸二氢钠含量操作简单、快捷、准确,且稳定性好.
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| 关 键 词： | 工业二水合磷酸二氢钠 中和法 重量法 电位法 |
Study on the determination method of sodium dihydrogen phosphate dihydrate for industrial use |
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| CAI Jia-zi,CHEN Miao-lan,LIANG Jing-duan.Study on the determination method of sodium dihydrogen phosphate dihydrate for industrial use[J].Fine and Specialty Chemicals,2014(6):30-32. |
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| Authors: | CAI Jia-zi CHEN Miao-lan LIANG Jing-duan |
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| Affiliation: | (Gtiangdong Jiangmen Supervision Testing Institute of Quality ＆ Metrology, Jiangmen 529000, China) |
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| Abstract: | The content of sodium dihydrogen phosphate for industrial use was determinated by potentiometric method . Potential method is to titrate sample solution pH up to 9.3 with sodium hydroxide standard solution using a calibrated pH meter. The potential method was compared with the weight method and neutralization method. The results showed that potentiometric determination method of sodium dihydrogen phosphate content is simple, fast, accurate, and good stability. |
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| Keywords: | sodium dihydrogen phosphate dihydrate for industrial use neutralization titration gravimetric analysis potentiometric titration |
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