alkali
/ˈæl.kə.laɪ/
B2 · Upper Int.★★☆☆☆
Simple Meaning
アルカリ。酸と混ざって塩を作る物質で、重曹や石鹸など。
When to Use
📚Academic Writing⚙️Technical
Upper Intermediate — fluent in familiar topics
Examples in Conversation
“重曹のようなアルカリを使ってオーブンを掃除できます。”
“化学の授業で、どの液体が酸でどれがアルカリかをテストしました。”
Learning Path
▶Full Definition
One of a class of caustic bases, such as soda, soda ash, caustic soda, potash, ammonia, and lithia, whose distinguishing peculiarities are solubility in alcohol and water, uniting with oils and fats to form soap, neutralizing and forming salts with acids, turning to brown several vegetable yellows, and changing reddened litmus to blue.