摘要
目的研究室温存放对单过硫酸氢钾复合盐水溶液理化性能与杀菌效果的影响。方法将单过硫酸氢钾复合盐消毒剂配制成水溶液,分别检测其金属腐蚀性和室温存放不同时间后单过硫酸氢钾复合盐含量及p H值,采用悬液定量杀菌试验观察水溶液存放前后的杀菌效果。结果含单过硫酸氢钾复合盐1 000 mg/L的消毒液对不锈钢、铝、铜和碳钢的腐蚀速率分别为0.0015、0.0689、0.8047和2.7705。其水溶液(25±1)℃存放24 h,有效浓度下降率>10%。存放5 d后,p H值由5.14下降至4.12,存放15 d,p H值下降至2.05,存放23 d,p H值下降至1.73。新鲜配制的单过硫酸氢钾复合盐水溶液有效浓度1 000 mg/L作用60 min对枯草杆菌黑色变种芽孢的杀灭对数值>5.00;水溶液经(25±1)℃存放5 d后,单过硫酸氢钾复合盐500 mg/L作用15 min对枯草杆菌黑色变种芽孢杀灭对数值>5.00。结论单过硫酸氢钾复合盐水溶液能够杀灭枯草杆菌黑色变种芽孢,对金属有不同程度腐蚀性,水溶液的稳定性差。
Objective To study the effects of potassium hydrogen peroxymonosulfate aqueous solution properties and germicidal efficacy after stored at room temperature. Methods The potassium hydrogen peroxymonosulfate disinfectant was formulated as an aqueous solution,measured p H value and content of potassium hydrogen peroxymonosulfate after stored at room temperature at different times and its metal corrosion,observed the disinfrction effect by suspension quantitative germicidal test before and after storage. Results The compound containing potassium hydrogen peroxymonosulfate 1 000 mg / L of disinfectant. The corrosion rates for stainless steel,aluminum,copper,carbon steel were 0. 0015,0. 0689,0. 8047,2. 7705 respectively. The solution was stored at（ 25 ± 1） ℃ for 24 h,the rate of decline in the effective concentration was above10%. p H value decreased from 5. 14 to 4. 12 for 5 d,to 2. 05 for 15 d,to 1. 73 for 23 d. The killing logarithm value of Bacillus subtilis var. niger spore exposed to freshly prepared solution contained potassium hydrogen peroxymonosulfate 1 000 mg / L for 60 min was 〉5. 00. The killing logarithm value of Bacillus subtilis var. niger spore exposed to stored solution after5 d at（ 25 ± 1） ℃ contained potassium hydrogen peroxymonosulfate 500 mg / L for 15 min was 〉5. 00. Conclusion There was good sporicidal effect and varying degree of corrosive on metal of the aqueous solution of potassium hydrogen peroxymonosulfate. The stability of the solution was poor.
出处
《中国消毒学杂志》
CAS
北大核心
2017年第2期109-111,共3页
Chinese Journal of Disinfection
基金
"十二五"科教兴卫工程(ZX201109)
江苏省科学技术厅重大新发传染病综合防控科技示范工程(BE2015714)
关键词
单过硫酸氢钾复合盐
杀芽孢效果
腐蚀性
稳定性
potassium hydrogen peroxymonosulfate
sporicidal effect
corrosion
stability
