north american sodium chloride solar milled salt [nacl] [cas_7647-14-5] white crystalline solid (50 lb bag) sold by wintersun chemical north american sodium chloride is an inorganic compounds (salts); it is made when na (sodium) and cl (chloride) come together to form white, crystalline solid. synonyms: sodium chloride native, chloride standard cas no: 7647-14-5. ec-no: 231-598-3. molecular formula: nacl. molar mass: 58.44 g/mol.