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ChemicalBook CAS DataBase List Calcium chloride
10043-52-4

Calcium chloride synthesis

1synthesis methods
Calcium chloride is obtained as a by-product in the manufacture of sodium carbonate (soda ash) by ammonia-soda (Solvay) process. The process involves the reaction of sodium chloride with calcium carbonate and ammonia. Calcium chloride is currently produced in bulk amounts by evaporation of natural underground brines. In the laboratory, calcium chloride can be prepared by treating limestone with hydrochloric acid followed by evaporation of solution to obtain crystals. The crystals are dehydrated to obtain anhydrous salt. Calcium oxide or hydroxide may be used instead of carbonate.
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Yield:-

Reaction Conditions:

in methanol;

Steps:

12 Example 12

The gel was immersed in a mixed solution of methanol/water=1/1, and when the fluorescence quantum yield was measured while calcium chloride was being added, it was found that as calcium chloride was added, the fluorescence quantum yield increased, and the gel functioned as a calcium sensor.

References:

US2016/169920,2016,A1

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