摘要
合成了四氯合锰（Ⅱ）酸正十六烷铵和四氯合铜（Ⅱ）酸正十六烷铵两种物质，进行了元素分析，并用ＤＳＣ、ＩＲ对它们进行了研究，发现存在一个固─固相交，且有较高的的焓变值和熵变值（△Ｈ＝５～６０ＫＪ／ｍｏｌ，△ｓ＝１５～１８０Ｊ／ｍｏｌ．ｋ），在较高的温度下具有化学稳定性．因此，四氯合锰（Ⅱ）、四氯合铜（Ⅱ）酸正十六烷铵可作为贮热物质。
The bis (n -- Hexadeyl ammonium ) tetrachlorometallates (Ⅱ) (C16M, M = Mn, Cu )which are one kind of potential thermal storage material. In this paper, (n -- C16H33NH3)2MnCl4 and (n -- C16H33NH3 )2CuCl4 were synthesized, elemental analysis was carried out. The solid --solid phase transitions for C16M (M = Mn,Cu ) were studied using DSC.IR. The kind of solid --solid phase transitions were observed. The enthalpies and entropies are higher (△H = 5～ 60 J. mol-1, △S =51 ～ 180 J. mol-1. K -1 ), they are chemically stable even at moderaterly high temperatures,so that C16Mn. and C16Cu are potertial thermal energy storage materials.
关键词
正十六烷铵
相变
贮热
四氯合锰酸
四氯合铜酸
bis (n-Hexadecylammonium ) tetrachloromangan
bis (n-Hexadecylammonium ) tetrachlorocopper
solid -- solid transitions for thermal energy storage
