摘要
本文研究了两种水和盐Na_2CO_3·10H_2O与Na_2HPO_4·12H_2O按照不同质量比混合形成二元共熔水合盐,分析对其过冷度的影响。实验结果表明,Na_2CO_3·10H_2O与Na_2HPO_4·12H_2O质量比1∶9、2∶8、3∶7、4∶6时形成的EHS,其相变温度均低于单一组分时的相变温度,每组EHS的过冷度都比单一组分的水合盐的过冷度低,其中Na_2CO_3·10H_2O与Na_2HPO_4·12H_2O质量比为1∶9形成的EHS过冷度最小,为8.1℃。
In this paper,two hydrated salts,Na_2CO_3·10 H_2O and Na_2HPO_4 ·12 H_2O, were mixed according to different mass ratios(1∶9、2∶8、3∶7、4∶6) to form binary eutectic hydrated salts,and the influence on their supercooling degree was analyzed. The experimental results show that the phase transition temperature of EHS, is lower than that of single component; and the supercooling degree of each group of EHS is lower than that of hydrated salt of single component, When the mass ratio of Na_2CO_3·10 H_2O and Na_2HPO_4 ·12 H_2O is 1∶9, the supercooling degree of EHS was the lowest,which was 8.1℃.
引文
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