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Water Questions & Answers

Chemistry and Water


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Water Questions & Answers
Why can't I rinse the soap off my hands?


The terms "soft water" and "hard water" are important here. Water is said to be soft if it has a low concentration of calcium and magnesium ions in it, and hard water has a high concentration of calcium and magnesium. If you use hard water, then it is harder to get soap to lather up as you wash. You might end up having to use more soap in this case, as opposed to using soap with softer water. But, when washing your hands and bathing with soft water, the soap tends to stick more to your skin when rinsing, as opposed to doing so in hard water. In this case, you may notice rinsing can leave a film of sticky soap curd on the skin. Soap curd on hair may make it dull, lifeless and difficult to manage.

Hard water can also leave a film or spots on glasses taken out of the automatic dishwasher and can contribute to calcium buildup (scale) inside of water pipes. Hard water can even shorten the life of fabrics and clothes. Hard water is prevalent in some parts of the country, and sometimes water-softening chemicals that reduce the amount of calcium and magnesium are added to the water.

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Page Last Modified: Monday, 22-Feb-2016 09:24:26 EST