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Sodium chloride [rock salt] (CAS 7647-14-5)
Sodium chloride /ˌsoʊdiəm ˈklɔːraɪd/, commonly known as salt (although sea salt also contains other chemical salts), is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions. With molar masses of 22.99 and 35.45 g/mol respectively, 100 g of NaCl contains 39.34 g Na and 60.66 g Cl. Sodium chloride is the salt most responsible for the salinity of seawater and of the extracellular fluid of many multicellular organisms. In its edible form of table salt, it is commonly used as a condiment and food preservative. Large quantities of sodium chloride are used in many industrial processes, and it is a major source of sodium and chlorine compounds used as feedstocks for further chemical syntheses. A second major application of sodium chloride is de-icing of roadways in sub-freezing weather.
Information
Industries: Household chemicals, Pharmaceutical industry, Food industry , Feed industry
CAS number: 7647-14-5
WE number: 231-598-3
Chemical formula: NaCl
Molar mass: 58,44 g/mol
Customs tariff code: 25010099
Other physical properties
pH: ~7 (1 % roztwór wodny w temp. 25 °C), 8-9 (5 % roztwór wodny w temp. 25°C))
Melting / freezing point: 801°C
Solubility in water: 358 g/l (20°C)
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