摘要
以不同浓度的氯化钠作为稳定剂,观察其对含有效氯0.5%的次氯酸钠溶液化学稳定性的影响,实验表明,加入0.6%的氯化钠溶液能显著提高次氯酸钠溶液的稳定性:在75℃敞口情况下放置4 h,有效氯仍保留初始浓度的91.73%,而未加氯化钠的对照样本仅保留初始浓度的87.78%;在75℃于密闭容器内放置19 h后,有效氯为初始浓度的83.95%,而未加氯化钠的对照样本仅为初始浓度的79.75%。0.6%氯化钠对次氯酸钠溶液的稳定性具有增强作用。
Sodium chloride was used as stabilizer lution （containing 0.5% available chlorine） was and its influence on chemical stability of soobserved. The experimental result indicated that 0.6% sodium chlorine was the best concentration for choice. The available chlorine in sodium hypochlorite solution containing the stabilizer only decreased to 91. 730 % of the original level after storage in open container at 75℃ for 4 h. While that in sodium hypochlorite, solution without the stabilizer decreased to 87.78% under the same conditions. In airtight colorless glass bottle, the sodium hypochlorite solution could retain 83. 95% of available chlorine after storage for 19 h. When the sodium chloride was added, while only 79.75% of available chlorine was left in absence of the stabilizer. 0.6 % sodium chloride can potentiate the stability of sodium hypochlorite solution.
出处
《陕西科技大学学报（自然科学版）》
2006年第5期45-47,54,共4页
Journal of Shaanxi University of Science & Technology
基金
陕西省教育厅自然科学专项(编号:06JK352)
关键词
氯化钠
次氯酸钠
稳定性
sodium chloride
sodium hypochlorite
stability
