Making lime water Lime water can be made by adding calcium hydroxide to distilled water, The mixture needs to be shaken every few hours for a period of 24 hours to ensure that as much calcium hydroxide dissolves as possible. It is then left to settle and the solution is syphoned off the sediment.
Lime water reacts with carbon dioxide to produce a precipitate[?] of calcium carbonate. It is used as a test for carbon dioxide.
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