Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 92: Issue 2

A fully automated adiabatic calorimeter for heat capacity measurement between 80 and 400 K

Authors:
,
Z. Tan Dalian Institute of Chemical Physics, Chinese Academy of Sciences Thermochemistry Laboratory Dalian 116023 China

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,
Q. Shi

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, and
B. Liu Hunan University of Arts and Science Department of Chemistry Changde 415000 China

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H. Zhang Dalian Institute of Chemical Physics, Chinese Academy of Sciences Thermochemistry Laboratory Dalian 116023 China

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Pages:
367–374
Online Publication Date:
22 Jun 2008
Publication Date:
01 May 2008
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-007-8954-2
Restricted access

Abstract  

A fully automated adiabatic calorimeter controlled on line by a computer used for heat capacity measurements in the temperature range from 80 to 400 K was constructed. The hardware of the calorimetric system consisted of a Data Acquisition/Switch Unit, 34970A Agilent, a 7 1/2 Digit Nano Volt /Micro Ohm Meter, 34420A Agilent, and a P4 computer. The software was developed according to modern controlling theory. The adiabatic calorimeter consisted mainly of a sample cell equipped with a miniature platinum resistance thermometer and an electric heater, two (inner and outer) adiabatic shields, two sets of six junction differential thermocouple piles and a high vacuum can. A Lake Shore 340 Temperature Controller and the two sets of differential thermocouples were used to control the adiabatic conditions between the cell and its surroundings. The reliability of the calorimeter was verified by measuring the heat capacities of synthetic sapphire (α-Al2O3), Standard Reference Material 720. The deviation of the data obtained by this calorimeter from those published by NIST was within ±0.1% in the temperature range from 80 to 400 K.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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