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|Section2= |Section3= |Section4= }} The chloride ion 〔.〕 is the anion (negatively charged ion) Cl−. It is formed when the element chlorine (a halogen) gains an electron or when a compound such as hydrogen chloride is dissolved in water or other polar solvents. Chloride salts such as sodium chloride are often very soluble in water.〔Green, John, and Sadru Damji. "Chapter 3." Chemistry. Camberwell, Vic.: IBID, 2001. Print.〕 It is an essential electrolyte located in all body fluids responsible for maintaining acid/base balance, transmitting nerve impulses and regulating fluid in and out of cells. The word ''chloride'' can also form part of the name of chemical compounds in which one or more chlorine atoms are covalently bonded. For example, methyl chloride, more commonly called chloromethane, (CH3Cl) is an organic compound with a covalent C−Cl bond. It is not a source of chloride ion. ==Electronic properties== A Chloride ion is much larger than a chlorine atom, 167 and 99 pm, respectively. The ion is colorless and diamagnetic. In aqueous solution, it is highly soluble in most cases, however some chloride salts, such as silver chloride, lead(II) chloride, and mercury(I) chloride are slightly soluble in water. In aqueous solution, chloride is bound by the protic end of the water molecules. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Chloride」の詳細全文を読む スポンサード リンク
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