過酸 かさん Meanings Noun peroxy acid; peracid Kanji 過 pass. Read as カ. 酸 acid. Read as サン. Words containing 過酸 過酸化水素 (かさんかすいそ) H2O2 過酸化水素水 (かさんかすいそすい) hydrogen peroxide solution 過酸化アセトン (かさんかアセトン) acetone peroxide And 8 more. Word lists Chemistry Jinuma: Japanese Dictionary · Word lists