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noun, Chemistry.
a white, crystalline, water-soluble solid, Na 2 SO 3 , used chiefly as a food preservative, as a bleaching agent, and as a developer in photography.


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  • Sodium sulphate

    noun 1. a solid white substance that occurs naturally as thenardite and is usually used as the white anhydrous compound (salt cake) or the white crystalline decahydrate (Glauber’s salt) in making glass, detergents, and pulp. Formula: Na2SO4

  • Sodium-tetraborate

    noun, Chemistry. 1. borax1 .

  • Sodium-thiocyanate

    noun, Chemistry, Pharmacology. 1. a white powder or colorless, deliquescent crystals, NaSCN, used chiefly in organic synthesis and in medicine in the treatment of hypertension.

  • Sodium-thiopental

    noun, Pharmacology. 1. sodium pentothal. sodium pentothal noun, Pharmacology. 1. the sodium salt of thiopental sodium. Sodium Pentothal noun 1. trademark another name for thiopental sodium

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