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temporary hardness
noun
- chem hardness of water due to the presence of magnesium and calcium hydrogencarbonates, which can be precipitated as carbonates by boiling
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Example Sentences
Examples have not been reviewed.
With the limited data at hand it is impracticable to determine these figures, but an increase of 2 per cent in the quantity of copper for each part per 100,000 of organic matter and an increase of 0.5 to 5 per cent in the proportion of copper for each part per 100,000 of temporary hardness will possibly be found correct.
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Similar scales should be arranged for the organic content and the temporary hardness of the water.
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Temporary hardness 20.000 14.0000 Permanent do 245.000 171.5000 Total do.
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To what is temporary hardness in water due?
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Most natural waters contain it dissolved in carbonic acid; this confers "temporary hardness" on the water.
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