A white crystalline or powdered compound, Na2SO3, used in preserving foods, silvering mirrors, developing photographs, and making dyes. American ...
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A soft, light, extremely malleable silver-white element that is an alkali metal, reacts violently with water, is naturally abundant in combined forms, especially in ...
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a chemical element, atomic number 11, atomic weight 22.990, symbol Na. (See
Reducing agent that alters the structure of hair. It can also be used as a preservative in cosmetic...
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an unstable crystalline salt NaHSO3 that is known especially in solution and