| 亚硫酸氢钠溶液稳定性的探讨 |
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| 引用本文： | 肖婉娜.亚硫酸氢钠溶液稳定性的探讨[J].广州化学,2012,37(2):25-29. |
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| 作者姓名： | 肖婉娜 |
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| 作者单位： | 广东科贸职业学院实训中心,广东广州,510430 |
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| 摘 要： | 从溶液的酸度、空气及光照、温度等因素对亚硫酸氢钠溶液的稳定性及滴定反应进行实验探讨,选择三乙醇胺(TEA)、甲醛、二乙胺四乙酸二钠(EDTA-2Na)、盐酸羟胺四种常用的螯合剂或强还原剂进行试验,结果表明EDTA-2Na作为溶液的稳定剂效果最好,其次是甲醛,最后是盐酸羟胺。TEA因为其强碱性会降低溶液的稳定性而不宜作为稳定剂。
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| 关 键 词： | 亚硫酸氢钠 稳定性 二乙胺四乙酸二钠 |
Discussion on the Stability of Sodium Bisulfite Solution |
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| XIAO Wan-na.Discussion on the Stability of Sodium Bisulfite Solution[J].Guangzhou Chemistry,2012,37(2):25-29. |
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| Authors: | XIAO Wan-na |
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| Institution: | XIAO Wan-na (Training Center, Guangdong Vocational College of Science and Trade, Guangzhou 510430, China) |
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| Abstract: | The effects of acidity, air and light, temperature on the stability of sodium bisulfite solution and the titration reaction were discussed. Trolamine, formalin, ethylenediaminetetraacetic acid disodium salt and hydroxylamine hydrochloride were chosen as four kinds of common chelating agent or reducing agent to do the experiment. The result showed that the ethylenediaminetetraacetic acid disodium salt as stabilizer is the best, the second is formalin, and the last is hydroxylamine hydrochloride. Trolamine couldn＇t be considered because of it＇s strongly alkaline that influences the stability of sodium bisulfite solution. |
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| Keywords: | sodium bisulfite solution stability ethylenediaminetetraacetic acid disodium salt |
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