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ChemicalBook CAS DataBase List Sodium chloride

Sodium chloride synthesis

8synthesis methods
Sodium chloride is produced by solar evaporation of seawater or brine from underground salt deposits. It also is produced by mining rock salt. The commercial product contains small amounts of calcium and magnesium chlorides.
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Yield:1934-75-4 94%

Reaction Conditions:

with sodium hydroxide in water at 70 - 75; pH=7.2 - 8.0; under 1050.11 Torr;Purification / work up;

Steps:

5

In a similar manner to Example 3, sodium dicyanamide was prepared, but the filter cake was not washed during the product isolation. 920 g/hour (=94% of theory) of sodium dicyanamide at a purity of 94.8% were obtained. The product comprised 4.8% of sodium chloride and 0.18% of sodium N-cyanoisourea.

References:

US6911559,2005,B1 Location in patent:Page/Page column 6

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