摘要
用半微量相平衡法研究了ZnCl_2/Zn(OAc)_2/ZnSO_4-His-H_2O在25℃及全浓度范围内的溶度性质,绘制了体系的溶度图及饱和溶液的折光指数-组成图,发现并制备了未见文献报道的固液异组成三元化合物Zn(His)Cl_2·(1/2)H_2O和固液同组成三元化合物Zn(His)(OAc)_2·(1/2)H_2O与Zn(His)SO_4·H_2O通过化学分析、元素分析、IR光谱、TG-DTG及X射线粉末衍射分析等对其进行了物理化学表征.
The solubility properties of the ZnCl2/ZnAc2/ZnSO4 - His - H2O systems at 25℃ in thewhole concentration ranges have been investigated by semimicro phase equilibrium method, and the corresponding equilibrium diagram and refractive index diagram were constructed. The incongruentlysoluble compound of Zn(His)Cl2·1/2H2O and congruendy soluble compounds of Zn(His)(OAc)2·1/2H2Oand Zn(His) SO4·H2O, which are not reported in literatures are discovered and synthesized. These compounds are charactered by IR spectra, TG - DTG, X - ray diffraction, as well as chemical and elemental analyses.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1999年第5期485-490,共6页
Acta Chimica Sinica
基金
国家自然科学基金(29871023)
陕西省教委基金(97JZK10)资助课题
关键词
锌盐
相平衡
三元体系
组氨酸锌
配合物
zinc salts, L - a - histidine, phase equilibrium, ternary system
