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Introduction of Sodium chloride

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angel110
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PostSubject: Introduction of Sodium chloride Sat Sep 10, 2011 6:06 pm

A colourless crystalline solid, NaCl, soluble in water and very slightly soluble in ethanol; cubic; r.d. 2.17; m.p. 801C; b.p. 1413C. It occurs as the mineral halite (rock salt) and in natural brines and sea water. It has the interesting property of a solubility in water that changes very little with temperature. It is used industrially as the starting point for a range of sodium-based products (e.g. Solvay process for Na2CO3, Castner-Kellner process for NaOH), and is known universally as a preservative and seasoner of foods. Sodium chloride has a key role in biological systems in maintaining electrolyte balances.

http://www.lookchem.com/Sodium-chloride/
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