In　the　centralized　solar　power　generation　system,　the　molten　salt　is　a　key　component　for　storing　and　transferring　heat　energy.　By　adding　Mg(NO3)(2)　to　NaNO3　at　various　mass　ratios,　nine　binary　nitrate　specimens　were　prepared.The　melting　point,　decomposition　temperature,specific　heat　and　latent　heat　of　the　mixed　nitrates　were　experimentally　studied　with　differential　scanning　calorimetry　and　thermogravimetric　analysis.　The　results　show　that　within　the　nine　mixed　molten　salts　at　different　mass　ratios,　No.05,　i.e.　Mg(NO3)(2)　and　NaNO3　with　the　identical　mass　proportion,　can　reach　the　state　of　eutectic　crystal,　with　the　initial　melting　temperature　at　355.4　degrees　C,　the　melting　temperature　at　364.3　degrees　C　and　the　decomposition　temperature　at　440　degrees　C.　The　remaining　binary　nitrate　samples　which　could　reach　eutectic　showed　the　similar　melting　temperature　at　around　340　degrees　C,　the　decomposition　temperature　in　the　range　of　430-500　degrees　C,the　specific　heat　maintained　at　around　1　J.　g(-1).　k(-1)　and　the　melting　latent　heat　at　around　154.2　J.g(-1).　(C)　2019　The　Authors.　Published　by　Elsevier　Ltd.