Talk:Saponification
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[edit] Removed soapy goodness
Water that contains calcium ions, Ca2+, and magnesium ions, Mg2+, is said to be hard water. These ions are leached from ground water flowing over rock formations containing limestone and other minerals. Hard water interferes with the cleaning action of soaps.
When soap is added to hard water, insoluble compounds form which appear as sticky scum. This scum leaves a deposit on clothes, skin, and hair.
When boiled, hard water leaves a deposit of calcium carbonate, CaCO3. This scale builds up in tea kettles and inside hot water heaters.
Detergents have replaced soap for many cleaning jobs around the home.
The development of synthetic detergents by chemists was a great advantage for people with relatively hard tap water in their homes
