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硼砂热力学性质的研究
孟庆芬; 谭志诚; 董亚萍; 陈美达; 孔凡志; 李武
2010-09-15
Source Publication盐湖研究
Issue3Pages:53-57
Abstract通过精密自动绝热量热仪测定了硼砂(Na2B4O7.10H2O)在78~345 K的热容。实验结果表明,硼砂在330~336 K温度区间有一个脱水-溶解峰,密闭加热条件下其熔点为334.38 K。用最小二乘法将脱水前的实验摩尔热容对折合温度进行拟合,得到了此温区的热容随温度变化的多项式方程,Cp,m=447.782 77+229.452 55X-49.129 89X2+21.504 25X3十24.551 12X4。用热容多项式方程进行数值积分获得了该物质在80~325 K温区每隔5 K的热力学函数值。
Keyword硼砂 低温热容 热力学函数
Language中文
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/1142
Collection青海盐湖研究所知识仓储
盐湖资源综合利用工程技术中心
Recommended Citation
GB/T 7714
孟庆芬,谭志诚,董亚萍,等. 硼砂热力学性质的研究[J]. 盐湖研究,2010(3):53-57.
APA 孟庆芬,谭志诚,董亚萍,陈美达,孔凡志,&李武.(2010).硼砂热力学性质的研究.盐湖研究(3),53-57.
MLA 孟庆芬,et al."硼砂热力学性质的研究".盐湖研究 .3(2010):53-57.
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