page_title: Chloride
section_title: Corrosion
hierarchical_section_title: Chloride / Occurrence in nature / Corrosion
caption_attribution_description: English: Crystal structure of NaCl with coordination polyhedra Bahasa Indonesia: Struktur kristal NaCl dengan koordinasi polihedra
context_page_description: The chloride ion is the anion Cl⁻. It is formed when the element chlorine 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. 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. Less frequently, the word chloride may also form part of the "common" name of chemical compounds in which one or more chlorine atoms are covalently bonded. For example, methyl chloride, with the standard name chloromethane is an organic compound with a covalent C−Cl bond in which the chlorine is not an anion.
context_section_description: The presence of chlorides, e.g. in seawater, significantly worsens the conditions for pitting corrosion of most metals (including stainless steels, aluminum and high-alloyed materials) by enhancing the formation, which, like most chloride salts, is colorless and water-soluble.
caption: The structure of sodium chloride, revealing the tendency of chloride ions (green spheres) to link to several cations.
exif: {}