sulfurous acid
noun Date: 1790 a weak unstable dibasic acid H2SO3 known in solution and through its salts and used as a reducing and bleaching agent

New Collegiate Dictionary. 2001.

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  • sulfurous acid — n. a colorless acid, H2SO3, known only in the form of its salts or in aqueous solution and used as a chemical reagent, a bleach, in medicine, etc …   English World dictionary

  • Sulfurous acid — Chembox new Name = Sulfurous acid ImageFile = Sulfurous acid 2D pyramidal.png ImageSize = 150px ImageName = Sulfurous acid ImageFile1 = Sulfurous acid 3D balls.png ImageSize1 = 200px ImageName1 = Ball and stick model fo sulfurous acid IUPACName …   Wikipedia

  • sulfurous acid — A solution of about 6% sulfur dioxide in water; used chiefly as a disinfectant and bleaching agent; it has been used externally for its parasiticidal effect in various skin diseases. * * * sulfurous acid n a weak unstable dibasic acid H2SO3 …   Medical dictionary

  • sulfurous acid — sulfito rūgštis statusas T sritis chemija formulė H₂SO₃ atitikmenys: angl. sulfurous acid rus. сернистая кислота ryšiai: sinonimas – vandenilio trioksosulfatas (2–) …   Chemijos terminų aiškinamasis žodynas

  • sulfurous acid — noun 1. : sulfur dioxide 2. : an unstable weak dibasic acid H2SO3 that is known especially in solutions of sulfur dioxide in water and in the form of its salts and that is a good reducing and bleaching agent forming sulfuric acid as it is… …   Useful english dictionary

  • sulfurous acid — noun The weak acid, HSO, present in a solution of sulfur dioxide in water; it is a reducing agent and mild bleach. See Also: sulfite, bisulfite …   Wiktionary

  • sulfurous acid — Chem. a colorless liquid, H2SO3, having a suffocating odor, obtained by dissolving sulfur dioxide in water, known mainly by its salts, which are sulfites: used chiefly in organic synthesis and as a bleach. [1780 90] * * * …   Universalium

  • sulfurous acid — sul′furous ac′id n. chem. a colorless liquid, H2SO3, having a suffocating odor, used chiefly in organic synthesis and as a bleach • Etymology: 1780–90 …   From formal English to slang

  • sulfurous acid anhydride — noun see sulfurous anhydride …   Useful english dictionary

  • acid halide — ▪ chemical compound       neutral compound that reacts with water to produce an acid and a hydrogen halide. Acid halides are ordinarily derived from acids or their salts by replacement of hydroxyl groups by halogen atoms. The most important… …   Universalium

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