過塩素酸 かえんそさん Meanings Noun perchloric acid Kanji 過 pass. Read as カ. 塩 salt. Read as エン. 素 element 酸 acid. Read as サン. Words containing 過塩素酸 過塩素酸アンモニウム (かえんそさんアンモニウム) ammonium perchlorate 過塩素酸塩 (かえんそさんえん) perchlorate Word lists Chemistry Jinuma: Japanese Dictionary · Word lists