Quaternary ammonium compounds having the structural formula: ##STR1## wherein X is chloride, bromide, iodide or alkyl carboxylate having a C.sub.1 -C.sub.18 alkyl radical, and R is n-nonyl or isononyl. The disclosed compounds were found to be non-toxic, low foaming, effective biocides in treatment methods for controlling bacteria, algae and molluscs in aqueous systems.
具有以下结构式的季
铵化合物:##STR1## 其中X是
氯化物、
溴化物、
碘化物或具有C.sub.1-C.sub.18烷基基团的烷基
羧酸盐,而R是正壬基或异壬基。发现这些化合物在
水系统中控制细菌、藻类和软体动物的处理方法中是无毒、低泡沫、有效的杀菌剂。