Explore Words Kanji Grammar Guides

Copyright © 2026 Kotomora. All Rights Reserved.

Get the Kotomora apps for iOS and Android.

Explore Words Kanji Grammar Guides About Support Privacy

Copyright © 2026 Kotomora. All Rights Reserved.

亜セレン酸 (aserensan) Japanese meaning: selenious acid | Kotomora

亜あセレン酸さん

あ

セ

レ

ン

さ

ん

Meanings

1

selenious acid

Technical term in chemistry; refers to the inorganic compound H₂SeO₃.

亜あセレン酸さんは強つよい酸さん化か剤ざいとして知しられて

いる

。

Selenious acid is known as a strong oxidizing agent.

Kanji

亜Asia, rank next, come after
酸acid, bitterness, sour

Related words

セレン酸さん
セレン酸 (selenic acid, H₂SeO₄) is the fully oxidized form, while 亜セレン酸 (selenious acid, H₂SeO₃) has a lower oxidation state.

Built from

亜あ+セレン酸さん

Etymology

Compound of 亜 (a-, 'sub-' or 'lower oxidation state') + セレン (seren, 'selenium') + 酸 (san, 'acid'). The prefix 亜 indicates that selenium is in a lower oxidation state compared to selenic acid.