Densities of selected phase change materials in liquid state

Abstract

Abstract Temperature dependencies of densities of ten liquid phase change materials were measured: (i) Mg(NO3)2·6H2O; (ii) Ca(NO3)2·4H2O; (iii) 50 wt.% Ca(NO3)2·4H2O + 50 wt.% Mg(NO3)2·6H2O; (iv) 67 wt.% Ca(NO3)2·4H2O + 33 wt.% Mg(NO3)2·6H2O; (v) 33 wt.% Ca(NO3)2·4H2O + 67 wt.% Mg(NO3)2·6H2O; (vi) Mn(NO3)2·6H2O; (vii) Zn(NO3)2·6H2O; (viii) CaCl2·6H2O; (ix) 28 wt.% Na2SO4 + 72 wt.% H2O; (x) 56 wt.% CH3COONa + 44 wt.% H2O. The two last compositions were chosen near the peritectic compositions of incongruently melting compounds Na2SO4·10H2O and CH3COONa·3H2O, respectively. Data are presented in the article.