NIST and standards for calorimetry

被引:25
作者
Archer, DG [1 ]
Kirklin, DR [1 ]
机构
[1] Natl Inst Stand & Technol, Phys & Chem Properties Div, Gaithersburg, MD 20899 USA
关键词
calorimetric standards; sodium chloride; potassium chloride; copper; alpha-aluminum oxide;
D O I
10.1016/S0040-6031(99)00426-8
中图分类号
O414.1 [热力学];
学科分类号
摘要
The present article describes briefly some of NISTs more recent work on calorimetric standards. New reference-quality measurements of the enthalpy of solution of aqueous sodium chloride, obtained with an adiabatic solution calorimeter, are presented and compared to a previous equation of state for NaCl(aq). Other calorimetric standards that are discussed are potassium chloride used for solution calorimetry and reference materials used for calibration of enthalpy-increment and heat-capacity calorimeters, namely synthetic sapphire (alpha-Al2O3) and copper. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:21 / 30
页数:10
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