01786nas a2200193   4500008004100000022001400041245011200055210006900167260007100236300001400307490000700321520104400328100001701372700001701389700001801406700001501424700002101439856013201460       2006                        eng d  a0021-956800aDensities and heat capacities of the ammonia plus water plus NaOH and ammonia plus water plus KOH solutions0 aDensities and heat capacities of the ammonia plus water plus NaO  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcMAY  a1020-10250 v513 a<p>Ammonia + water + sodium hydroxide and ammonia + water + potassium hydroxide mixtures were chosen as potential candidates for absorption chillers driven by low-temperature heat sources. Heat capacity and density were studied between (293.15 and 353.15) K at a constant pressure of 1.8 MPa for these solutions using a heat flux Calvet-type calorimeter and a vibrating-tube densimeter, respectively. Measured data were well-correlated with temperature and composition using simple polynomial equations. The relative deviations between the experimental and calculated values in the density and heat capacity measurements were 0.20 % and 0.49 % for NH3 + H2O + NaOH solutions and 0.10 % and 0.36 % for NH3 + H2O + KOH solutions, respectively. Also, two density prediction methods were checked using the experimental data. Previously, it was necessary to measure the density of ammonia and hydroxide aqueous solutions in similar conditions. The results showed that both methods are suitable for predicting the density of these solutions.</p>1 aSalavera, D.1 aLibotean, S.1 aPatil, K., R.1 aEsteve, X.1 aCoronas, Alberto  uhttps://library.ncl.res.in/content/densities-and-heat-capacities-ammonia-plus-water-plus-naoh-and-ammonia-plus-water-plus-koh-0