Component Analysis and Thermal Stability of Calamine Before and After Processing

ZHANG Jie-hong; SHI Xue-jiao; WEI Zheng; YIN Ling; LIU You-ping

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Component Analysis and Thermal Stability of Calamine Before and After Processing

更新时间：2024-01-04

- Component Analysis and Thermal Stability of Calamine Before and After Processing
- Chinese Journal of Experimental Traditional Medical Formulae Vol. 17, Issue 24, Pages: 16-18(2011)
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- Published：2011
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ZHANG Jie-hong, SHI Xue-jiao, WEI Zheng, et al. Component Analysis and Thermal Stability of Calamine Before and After Processing[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(24): 16-18.
DOI：

ZHANG Jie-hong, SHI Xue-jiao, WEI Zheng, et al. Component Analysis and Thermal Stability of Calamine Before and After Processing[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(24): 16-18. DOI：

摘要

目的 :对炉甘石炮制前后的主要物相、化学成分、热稳定性进行研究。方法 :通过X射线衍射(XRD)对炉甘石的物相进行分析

运用红外分光光度法(IR)和滴定法对炉甘石的化学成分进行分析

运用差热分析对炉甘石的热稳定性进行研究。结果 :炉甘石经炮制后主要物相从单斜晶系的Zn5(CO3)2(OH)6转化成六方晶系的ZnO;碳酸根的伸缩振动及弯曲振动明显减弱;氧化锌的质量分数从63.36%增高到82.95%;样品升温至约250 ℃时放热

当接近315 ℃左右时热量不再变化。结论 :炉甘石的炮制不仅使化学成分发生变化

而且物相也发生变化

差热分析可以规范炉甘石的明煅温度。

Abstract

Objective :To study on main phase

chemical composition

thermal stability of calamine before and after processing. Method :Analyzed phase and chemical composition of calamine X-ray diffraction (XRD)

infrared spectrophotometry (IR) and titration method;studied thermal stability of calamine by differential thermal analysis. Result: Main phase of calamine after processing changed from monoclinic system of Zn5(CO3)2(OH)6 to hexagonal system of ZnO;Stretching vibration and bending of carbonate obviously weaked; The content of zinc oxide increased from 63.36% to 82.95%; Sample released heat when heated to about 250 ℃ and heat did not change when heated close to 315 ℃. Conclusion : Not only main phase changed of calamine after processing

but also chemical composition changed.Differential thermal analysis (DTA) could regulate calcined temperature of calamine.

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Related Institution

Guangdong Provincial Key Laboratory of Traditional Chinese Medicine Formula Granules in Enterprises，Guangdong Efong Pharmaceutical Co. Ltd.

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Shandong University of Traditional Chinese Medicine

Shandong Academy of Chinese Medicine

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