The presence in water of mineral salts (chiefly calcium bicarbonate) that are removed by boiling.
- The temporary hardness is caused by the magnesium and calcium bound in hydrogen carbonate or carbonate.
- There are two types of hardness, resulting from different compounds - permanent and temporary hardness.
- Make sure you know how and why temporary hardness is removed.
For editors and proofreaders
Line breaks: tem|por¦ary hard|ness
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