Sulfur-dioxide



noun, Chemistry.
1.
a colorless, nonflammable, water-soluble, suffocating gas, SO 2 , formed when sulfur burns: used chiefly in the manufacture of chemicals such as sulfuric acid, in preserving fruits and vegetables, and in bleaching, disinfecting, and fumigating.
sulfur dioxide
A colorless, poisonous gas or liquid with a strong odor. It is formed naturally by volcanic activity, and is a waste gas produced by burning coal and oil and by many industrial processes, such as smelting. It is also a hazardous air pollutant and a major contributor to acid rain. Chemical formula: SO2.

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    noun, Chemistry. 1. any of the class of dyes produced by heating an organic compound, as an indophenol, with sulfur or sodium polysulfide, used chiefly in dyeing cotton.

  • Sulfureous

    adjective 1. consisting of, containing, or pertaining to sulfur. 2. like sulfur, especially in color.



  • Sulfuret

    noun 1. Chemistry. a sulfide. verb (used with object), sulfureted, sulfureting or (especially British) sulfuretted, sulfuretting. 2. to treat or combine with sulfur.

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    noun, Chemistry. 1. hydrogen sulfide.



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