かいめんかっせいざい 界面活性剤 Surfactant #物質名 #家事 一つの分子の中に水に混ざりやすい部分と油に混ざりやすい部分を持つ物質のこと。石鹸など洗剤(detergent)の主成分。 This is a substance in which one molecule has both parts that mix easily with water and parts that mix easily with oil. It is the main component in detergents such as soap, etc.