论文部分内容阅读
将煤焦油200克和皂筴末100克放在带有密塞的大瓶中,加入酒精700毫升混合均匀,加塞放置七日,不时振荡或搅拌、过滤,於滤液中加足量酒精使成1000毫升,是为备用煤焦油溶液。取备用煤焦油溶液■份,加水■份,振荡後,得白色乳状溶液,即为消毒用煤焦油溶液,含煤焦油量为2%(或用1份备用煤焦油溶液加水十九份稀释,则得含煤焦油1%量之消毒溶液)。装入喷雾壶中,喷射到庭园墙脚、室内、屋外,可行消毒,并能杀死各种有害昆虫的幼虫和虫卵,更稀的水液可以洗手,用治皮肤病。
Add 200g of coal tar and 100g of soap powder to a large bottle with a stopper, add 700ml of alcohol and mix well, put it aside for seven days, shake or agitate from time to time, filter, add enough alcohol in the filtrate to make 1000 Ml, is a spare coal tar solution. Take spare coal tar solution ■ parts, add water ■ parts, after shaking, a white milky solution, that is, disinfection of coal tar solution, coal tar content of 2% (or with 1 spare coal tar solution diluted nineteen, You have to 1% of coal tar disinfection solution). Into the spray cans, spray to the garden wall feet, indoor and outdoor, feasible disinfection, and can kill all kinds of harmful insects larvae and eggs, more dilute water can wash your hands, with skin diseases.