M. Okumura, Y. Kitano, M. Idogaki
May 1, 1986
Citations
0
Influential Citations
8
Citations
Journal
Marine Chemistry
Abstract
Abstract Coprecipitation of bromide ions with calcium carbonate, formed from a calcium bicarbonate solution containing bromide ions, and the influence of bromide ions in a parent solution on the crystal form of the calcium carbonate were studied experimentally. The following results were obtained: the coprecipitation is affected by the crystal form of the calcium carbonate and the concentration of sodium chloride dissolved in a parent solution. The bromide ions are more easily coprecipitated with aragonite than with calcite. The amount of bromide ions coprecipitated with aragonite decreases significantly with increasing concentration of sodium chloride in a parent solution. The presence of bromide ions in a parent solution has a slight influence on the crystal form of calcium carbonate to favor calcite formation and to inhibit aragonite formation. The role of marine carbonate sediments in the removal of bromide ions from sea water is discussed briefly.