hyposulfurous acid
A chemical term for an unstable sulfur oxyacid. Used in specialized chemistry contexts.
Hyposulfurous acid is an unstable compound, confirmed to exist only in aqueous solution.
亜硫酸 (sulfurous acid, H₂SO₃) is a more common and stable sulfur oxyacid, while 次亜硫酸 is a less common, unstable acid with a lower oxidation state of sulfur.
硫酸 (sulfuric acid, H₂SO₄) is a strong, stable acid widely used in industry, contrasting with the unstable and rare 次亜硫酸.
The term is composed of 次亜 (hypo-, indicating a lower oxidation state) and 硫酸 (sulfuric acid), following standard chemical nomenclature for oxyacids.