摘要：

对固体三元稳态二氧化氯杀菌剂的稳定性、腐蚀性及杀菌消毒特性进行研究后发现, 该杀菌剂ClO₂ 活化得率在95.5%以上 ;活化酸度为pH=4.84;于 (54±1)℃放置 14d, ClO₂ 含量的下降率为3.1%;用ClO₂ 质量浓度 80mg/L的消毒液作用 3～ 5min, 对大肠杆菌和金黄色葡萄球菌的杀灭率为100% ;ClO₂质量浓度400mg/L的消毒液作用60min对枯草杆菌黑色变种芽孢的杀灭率为100% ;ClO₂质量浓度300mg/L的消毒液作用20min, 可以完全破坏悬液中HBsAg的抗原性 ;ClO₂质量浓度800mg/L的消毒液对不锈钢基本无腐蚀, 对铜片、碳钢、铝片均有中度腐蚀。

关键词: 固体三元稳态, 二氧化氯, 稳定性, 腐蚀性, 杀菌消毒特性

Abstract:

Trinary solid stable chlorine dioxide is a new type of powerful disinfectant which possesses the properties of high efficiency and speed, low acidity and less loss of ClO₂ in activating reaction. In order to learn more about the disinfectant, experiments have been carried out to study its stability, corrodibility, and disinfecting actions, etc. The results show that (1) the gain rate of ClO₂ is 96.5%, acidity of activating solution is pH=4.84, and the decreasing rate of ClO₂ is 3.1% followed by a storage for 14 days at (54±1) ℃; (2)its solution containing ClO₂ 80 mg/L can kill 100% Escherichia coli and Staphylococcus aureus in 3～5 min, its solution containing ClO₂ 400 mg/L can also kill 100% Bacillus subtilis var. niger spores in 60 min, its solution containing ClO₂ 300 mg/L can fully destroy antigenicity of HBsAg in a 20 min contact time;(3) a solution of the disinfectant at a concentration of 800 mg/L ClO₂ is essentially non corrosive to stainless steel and moderate corrosive to carbon steel, copper, and aluminum.

Key words: trinary solid in stable state, chlorine dioxide, stability, corrodibility, disinfection

中图分类号: 

• TQ085.+412