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目的研究酸性硫酸钙的杀菌因子,为科学应用提供依据。方法通过理化分析法和用悬液定量杀菌试验,分析其杀菌成分含量和比较其与硫酸的杀菌效果。结果用酸碱滴定法测得酸性硫酸钙的硫酸浓度为5.29mol/L。以其100倍稀释液(硫酸浓度为0.0529mol/L)作用10min,对悬液内大肠杆菌平均杀灭对数值>5.00;用浓度为98%的浓硫酸稀释至含硫酸为0.0529mol/L时,作用5min,对悬液内大肠杆菌平均杀灭对数值>5.00。结论酸性硫酸钙主要杀菌成分为强酸,其杀菌效果与硫酸接近。
Objective To study the bactericidal factor of acid calcium sulfate and provide scientific basis for its application. Methods The content of bactericidal components was analyzed by physical and chemical analysis method and quantitative bactericidal test with suspension, and the bactericidal effect was compared with that of sulfuric acid. Results acid-base titration acid sulfate concentration of sulfuric acid was 5.29mol / L. Its 100-fold dilution (sulfuric acid concentration of 0.0529mol / L) for 10min, the average killing E. coli in the suspension logarithm> 5.00; with a concentration of 98% concentrated sulfuric acid diluted sulfuric acid 0.0529mol / L , The role of 5min, the average E. coli killing suspension logarithm> 5.00. Conclusion The main bactericidal component of acid calcium sulfate is strong acid, its bactericidal effect is close to that of sulfuric acid.