亜あ硫りゅう酸さん

あ

りゅ

う

さ

ん

Freq.FrequencyTop 100,000

Meanings

1

noun

sulfurous acid

chemistry

Chemical term for H₂SO₃; used in chemistry contexts.

Asia, rank next, come after

硫sulphur

酸acid, bitterness, sour

硫りゅう酸さん
硫酸 is sulfuric acid (H₂SO₄), a stronger and more common acid, while 亜硫酸 is the weaker sulfurous acid (H₂SO₃).

Compound of 亜 (a, 'sub-') + 硫酸 (ryūsan, 'sulfuric acid'), indicating a lower oxidation state of sulfur.