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Sodium chloride commonly known as table salt, is an ionic compound with the chemical formula NaCl It forms as isometric crystals and is typically colorless or white, but may also be other colors depending on the amount and type of impurities contained within it The salt occurs in beds of sedimentary evaporate minerals. This is caused by large lakes and seas drying up. The salt beds can be hundreds of meters deep Industries: Household chemicals , Pharmaceutical industry , Food industry, Feed industry Agriculture, Paper industry, Water softening, Soda ash industry properties: CAS number: 7647-14-5 WE number: 231-598-3 Chemical formula: NaCl Molar mass: 58,44 g/mol Customs tariff code: 25010099 Names: Rock Salt Sodium Chloride Halite Form: White or Colorless crystals pH: 8-9 Melting / freezing point: 801°C Solubility in water: 358 g/l @20°C