The　solubility　of　sodium　chloride　was　investigated　by　using　a　continuous　flow　method　over　the　temperature　and　pressure　ranges　of　(568　to　598)　K　and　(10　to　25)　MPa,　respectively.　The　results　showed　that　the　solubility　of　sodium　chloride　increased　with　increasing　water　density.　In　general,　over　the　low-density　ranges,　the　increase　of　solubility　is　not　significant.　Whereas,　over　the　high-density　ranges,　the　solubility　greatly　increases　with　density.　The　experimental　solubility　data　were　also　correlated　with　seven　empirical　and　semiempirical　models　(empirical,　enthalpy,　Cp-,　Flory-Huggins,　ionization,　second-order　polynomial,　and　third-order　polynomial　models).　The　correlated　results　indicated　that　the　second-order　polynomial　model　provided　the　best　fit.　The　solubility　data　of　sodium　chloride　in　sub-,　near-,　and　supercritical　water　from　this　work　and　literature　were　collected　with　a　view　to　evaluating　the　correlative　and　predictive　capability　of　these　models　over　a　wide　range.　The　enthalpy　model　gave　the　best　correlated　and　predicted　result　with　respect　to　the　solubilities　in　near-　and　supercritical　water.　In　the　whole　region,　the　third-order　polynomial　model　was　proven　the　most　suitable　model.　Moreover,　the　corrosion　behavior　of　the　apparatus　was　characterized　using　scanning　electron　microscopy/energy　dispersive　X-ray　spectroscopy,　X-ray　diffraction,　and　X-ray　photoelectron　spectroscopy　methods,　and　the　possible　corrosion　mechanism　is　also　briefly　discussed.