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行人将口香糖乱吐,残渣粘在路上、墙壁上等公共场合,清除起来很困难。上海市四年级小学生许仲嘉日前研制出一种药水,一抹一刷可轻松清除这些口香糖残渣。美国人从柠檬中提取出柠檬油,能溶解口香糖类的物质,但柠檬油直接用在路面上易使行人滑倒,产生安全隐患。为此,许仲嘉向化学老师求助,经过几百次反复实验调试,最终用柠檬油、乳化剂、水按比例配制出“口
Pedestrians will spit chewing gum, residue stuck in the road, walls and other public places, remove it very difficult. Xu Zhongjia, a sophomore in Shanghai, recently developed a syrup that easily removes these gum residue with a single wipe. Americans extract lemon oil from the lemon, can dissolve chewing gum material, but the lemon oil used directly on the road makes pedestrians slip, resulting in security risks. To this end, Xu Zhongjia to the chemistry teacher for help, after hundreds of repeated experimental debugging, the final lemon oil, emulsifier, water proportionate preparation of ”mouth