Topic summary
Cl-
Extracted from the Wikipedia article Chloride.
Names Systematic IUPAC nameChlorideIdentifiers CAS Number16887-00-63D model (JSmol)Interactive imageBeilstein Reference3587171 ChEBICHEBI:17996ChEMBLChEMBL19429ChemSpider306Gmelin Reference14910 IUPHAR/BPS2339KEGGC00698PubChemCID312UNIIQ32ZN48698InChIInChI=1S/ClH/h1H/p-1Key: VEXZGXHMUGYJMC-UHFFFAOYSA-MSMILES[Cl-]Properties Chemical formulaClMolar mass35.45 g·mol Conjugate acidHydrogen chlorideThermochemistry Std molarentropy(S298)153.36 J K mol Std enthalpy offormation(ΔfH298)−167 kJ mol Related compounds Other anionsFluorideBromideIodideExcept where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).The chlorideion (Cl) is the anion of chlorine, that is, chlorine with an extra electron. The term "chloride" is also used non-systematically for chemicals containing chlorine covalently bonded to another atom. Chloride salts such as sodium chloride are often soluble in water. It is an essential electrolyte located in all body fluids responsible for maintaining acid/base balance, transmitting nerve impulses and regulating liquid flow in and out of cells. Other examples of ionic chlorides include potassium chloride (KCl), calcium chlor