Inorganic Chemicals Industry >
Effect of different magnesium salts on solubility behavior of calcium carbonate under magnetization
Received date: 2019-09-13
Online published: 2020-03-31
To illustrate the effect rule of inorganic magnesium salts on solubility behavior of calcium carbonate under magnetization,the solubility behavior of calcium carbonate affected by different magnesium salts was characterized by conductivity,pH and calcium concentration.Results showed that magnesium sulfate,magnesium nitrate and magnesium chloride promoted dissolution of calcium carbonate under magnetization.Magnesium sulfate with the most remarkable effect could enhance calcium concentration by 55.0%.While magnesium carbonate inhibited dissolution of calcium carbonate and reduced calcium concentration by 36.0%.The reason of magnesium sulfate,magnesium nitrate and magnesium chloride promoting dissolution of calcium carbonate was that magnesium ions produced salt effect and magnesium salts reduced pH of magnetizing calcium carbonate solution at different degree.And the reason of magnesium carbonate inhibiting dissolution of calcium carbonate was that carbonate ions produced common ion effect and polarization effect and magnesium carbonate enhanced pH of magnetizing calcium carbonate solution.The research reveals the effect rule of different magnesium salts on solubility behavior of calcium carbonate in magnetized solution,which not only provides a theoretical basis of regulating solubility behavior of calcium carbonate by magnesium salts but also has certain reference significance on strengthening the effect of magnetic scale removal.
Key words： magnetization; calcium carbonate; solubility behavior; magnesium salts
Yubin Wang , Wangbo Wang , Xinfeng Zhu , Jingwen Xun , Weiben Dang . Effect of different magnesium salts on solubility behavior of calcium carbonate under magnetization[J]. Inorganic Chemicals Industry, 2020 , 52(3) : 35 -38 . DOI: 10.11962/1006-4990.2019-0268
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