无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2011, Vol. 43 ›› Issue (11): 22-.

• 论文 • 上一篇    下一篇

硅酸钠及碳酸钠对次氯酸钠溶液稳定性的影响

苏秀霞,蒋吉磊,李仲谨,惠媛媛   

  1. 陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安 710021
  • 发布日期:2011-11-09

Effect of sodium silicate and sodium carbonate on stability of sodium hypochlorite solution

 SU  Xiu-Xia, JIANG  Ji-Lei, LI  Zhong-Jin, HUI  Yuan-Yuan   

  1. Key Laboratory of Auxiliary Chemistry & Technology for Light Chemical Industry,Ministry of Education,School of Chemistry and Chemical Engineering,Shaanxi University of Science & Technology,Xi′an 710021,China
  • Published:2011-11-09

摘要: 以不同浓度的硅酸钠、碳酸钠及二者混合物作稳定剂,研究它们对有效氯含量为0.5%(质量分数,下同)的次氯酸钠溶液化学稳定性的影响。测定稳定化处理后次氯酸钠溶液中有效氯的含量,结果表明:54 ℃下恒温密闭静置14 d后,加入硅酸钠、碳酸钠以及二者混合物作稳定剂的次氯酸钠溶液的有效氯,最高分别可保留初始浓度的88.16%、86.81%和92.85%;而不加任何稳定剂的次氯酸钠溶液在同样条件下其有效氯含量仅仅可保留初始浓度的76.58%。实验结果表明,硅酸钠和碳酸钠的混合物可以作为次氯酸钠溶液的良好稳定剂。

关键词: 硅酸钠, 碳酸钠, 次氯酸钠溶液, 稳定性

Abstract: Sodium silicate,sodium,carbonate and their mixture with different concentrations were selected to be stabilizers for sodium hypochlorite solution with active chlorine content of 0.5% (mass fraction,same below).Their influences on the stability of sodium hypochlorite solution were studied.By analyzing the active chlorine contents of sodium hypochlorite solution,the results showed that:while maintaining standing and constant temperature at 54 ℃ after 14 d,the maximum active chlorine concentrations of sodium hypochlorite solution with sodium silicate,sodium carbonate,and the mixture as stabilizers were 88.16%,86.81%,and 92.85%,respectively,of the initial concentration;however,under the same conditions,the maximum active chlorine concentration of the sodium hypochlorite solution without any stabilizer was only about 76.58% of the initial concentration.Results showed that the mixture of sodium silicate and sodium carbonate could be a good stabilizing agent for sodium hypochlorite solution.

Key words:  , sodium silicate, sodium carbonate, sodium hypochlorite solution, stability

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