Hydrocalcite (CaCO 3 ⋅ H 2 O) and Nesquehonite (MgCO 3 ⋅ 3H 2 O) in Carbonate Scales
- 12 September 1969
- journal article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 165 (3898), 1119-1121
- https://doi.org/10.1126/science.165.3898.1119
Abstract
Hydrocalcite (CaCO3 • H2O) with exactly one molecule of hydrate water is the main component of carbonate scales deposited from cold water in contact with air. When the magnesium content of the water is high, the hydrocalcite occurs together with MgCO3 • 3H2O (nesquehonite). From the conditions under which hydrocalcite is transformed into calcite and aragonite, it appears that in some cases aragonite in nature may be formed by way of an intermediary of CaCO3 • H2O.Keywords
This publication has 3 references indexed in Scilit:
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- Die Hydrate des CalciumcarbonatsZeitschrift für anorganische und allgemeine Chemie, 1930
- Studien an kohlensauren Magnesiumsalzen. II.: Normales MagnesiumcarbonatBerichte der Bunsengesellschaft für physikalische Chemie, 1930