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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Analysis of Natural Water
verfasst von : Aquaprox
Erschienen in: Treatment of Cooling Water
Verlag: Springer Berlin Heidelberg
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We have seen in the list of dissolved salts, besides halogens found also among dry solids in water, the bicarbonates which exist only in solution: these are, for instance, calcium bicarbonate, magnesium bicarbonate and ferrous bicarbonate. These salts are not insoluble, and they are found in dry matter in the form of carbonate, as for magnesium and calcium, according to the reaction:
Ca(HCO
3
) →CaCO
3
+ CO
2
+ H
2
O
Mg(HCO
3
)
2
→MgCO
3
+ CO
2
+ H
2
O
The ferrous carbonate is found in the form of ferric hydroxide by carbonate removal followed by oxydation.