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Calcium, Strontium, Barium, Radium

  • H. H. Read

Abstract

Calcium (Ca) does not occur in the free state in nature but its compounds are extremely abundant. It may be produced by the electrolysis of fused calcium chloride, but modern production is by the reduction of lime by aluminium in retorts under a low pressure. The metal calcium is being increasingly used in alloys, and in many metallurgical and chemical operations.

Keywords

Calcium Carbonate Calcium Sulphate Calcium Mineral Barium Salt Carboniferous Limestone 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© George Allen & Unwin (Publishers) Ltd. 1970

Authors and Affiliations

  • H. H. Read
    • 1
    • 2
  1. 1.Imperial College of Science and TechnologyUK
  2. 2.University of LondonUK

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