STUDY ON GERMICIDAL EFFICACY AND STABILITY OF PEROXIDE EFFERVESCENT TABLET

Peroxide effervescent tablet is a solid tablet composed of sodium percarbonate and hydantoin as the main ingredients and other adjuvents.In order to study its germicidal efficacy and other properties,suspension quantitative germicidal test was used to carry out laboratory observation. Results: The killing logarithm of Escherichia coli exposed to the water solution of the effervescent tablet containing peroxide 8 g/L for 5 min was 5.00, that of Pseudomonas aeruginosa exposed to the solution containing peroxide 12 g/L for 5 min and Staphylococcus aureus exposed for 10 min was 5.00.The killing logarithm of Candida albicans exposed to the solution containing peroxide 40 g/L for 1 h was 4.00 and that of Bacillus subtilis var.niger spores exposed for 4 h was 5.00.In capacity test for the effervescent tablet,the minimal eligible concentration for killing Staphylococcus aureus was peroxide 12 g/L.After the effervescent tablet was stored in airtight condition at room temperature for 3 months,its peroxide content decreased by 2.04%.