noun
potassium alum
Chemical compound used as a mordant in dyeing, in water purification, and in traditional deodorants. Technical term.
カリ明礬は染色の媒染剤として使われる。
Potassium alum is used as a mordant in dyeing.
明礬 is the general term for alum, while カリ明礬 specifically refers to potassium alum.
Compound of カリ (kari, from Dutch 'kali' meaning potassium) and 明礬 (myōban, alum).