ENTHALPIES OF SOLUTION OF MALONIC, GLUTARIC, ASCORBIC, AND DL-ASPARTIC ACIDS IN WATER AND OF FUMARIC-ACID IN 0.1 MOL.DM-3 HCL

被引：12

作者：

APELBLAT, A

机构：

[1] Department of Chemical Engineering, Ben Gurion University of the Negev, Beer Sheva

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 1990年 / 22卷 / 03期

关键词：

D O I：

10.1016/0021-9614(90)90195-V

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Enthalpies of solution of five organic acids in water were measured in a Parr calorimeter. The molar enthalpies of solution are: ΔsolHm(298.20 K, m = 0.0299 mol·kg-1) = (21.3±0.4) kJ·mol-1 and ΔsolHm(298.20 K, m = 0.0470 mol·kg-1) = (20.1±0.6) kJ·mol-1 for malonic acid; ΔsolHm(298.16 K, m = 0.0048 mol·kg-1) = (34.3±1.2) kJ·mol-1 for glutaric acid; ΔsolHm(298.19 K, 0.1 mol·dm-3 HCl, m = 0.00119 mol·kg-1) = (68.7±3.9) kJ·mol-1 for fumaric acid; ΔsolHm(298.22 K, m = 0.0128 mol·kg-1) = (25.0±0.6) kJ·mol-1 and ΔsolHm(298.27 K, m = 0.0275 mol·kg-1) = (23.3±0.3) kJ·mol-1 for ascorbic acid; and ΔsolHm(298.18 K, m = 0.0148 mol·kg-1) = (33.5±0.5) kJ·mol-1 for dl-aspartic acid. © 1990.

引用

页码：253 / 256

页数：4

共 12 条

[1] SOLUBILITY OF ASCORBIC, 2-FURANCARBOXYLIC, GLUTARIC, PIMELIC, SALICYCLIC, AND O-PHTHALIC ACIDS IN WATER FROM 279.15-K TO 342.15-K, AND APPARENT MOLAR VOLUMES OF ASCORBIC, GLUTARIC, AMD PIMELIC ACIDS IN WATER AT 298.15-K [J].