Why do walls shine some days after white washing?

Asked by  | 27th Jun, 2011, 12:00: AM

Expert Answer:

In whitewash Calcium hydroxide is present.Calcium hydroxide reacts slowly with the carbon dioxide in air to form a thin layer of calcium carbonate on the walls. Calcium carbonate is formed after two to three days of white washing and gives a shiny finish to the walls.

Answered by  | 27th Jun, 2011, 05:12: PM

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