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A method to simultaneously determine sorption isotherms and sorption enthalpies with a double twin microcalorimeter

Wadsö, Lars LU and Markova, Natalia (2002) In Review of Scientific Instruments 73(7). p.2743-2754
Abstract
Sorption of vapors of water, ethanol, and other liquids on solids like pharmaceuticals, textiles and food stuffs are of both practical and theoretical importance. In this article we present a technique to simultaneously measure sorption isotherms and sorption enthalpies. The sample is contained in one end of a sorption vessel. In the other end a vaporizable liquid is introduced to start the measurement. Mass transfer from the liquid to the sample is by vapor diffusion and the rate of mass transfer is calculated from the measured thermal power of vaporization. Simultaneously, the thermal power of sorption is measured and from this one may calculate the differential enthalpy of sorption. The thermal power measurements are made by inserting... (More)
Sorption of vapors of water, ethanol, and other liquids on solids like pharmaceuticals, textiles and food stuffs are of both practical and theoretical importance. In this article we present a technique to simultaneously measure sorption isotherms and sorption enthalpies. The sample is contained in one end of a sorption vessel. In the other end a vaporizable liquid is introduced to start the measurement. Mass transfer from the liquid to the sample is by vapor diffusion and the rate of mass transfer is calculated from the measured thermal power of vaporization. Simultaneously, the thermal power of sorption is measured and from this one may calculate the differential enthalpy of sorption. The thermal power measurements are made by inserting the sorption vessel in an isothermal double twin microcalorimeter. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Review of Scientific Instruments
volume
73
issue
7
pages
2743 - 2754
publisher
American Institute of Physics
external identifiers
  • wos:000176427500036
  • scopus:0036640103
ISSN
1089-7623
DOI
10.1063/1.1484159
language
English
LU publication?
yes
id
39e998d6-c5ef-481a-839b-41d10fa5f41d (old id 334272)
date added to LUP
2007-11-19 14:47:59
date last changed
2017-01-01 06:54:41
@article{39e998d6-c5ef-481a-839b-41d10fa5f41d,
  abstract     = {Sorption of vapors of water, ethanol, and other liquids on solids like pharmaceuticals, textiles and food stuffs are of both practical and theoretical importance. In this article we present a technique to simultaneously measure sorption isotherms and sorption enthalpies. The sample is contained in one end of a sorption vessel. In the other end a vaporizable liquid is introduced to start the measurement. Mass transfer from the liquid to the sample is by vapor diffusion and the rate of mass transfer is calculated from the measured thermal power of vaporization. Simultaneously, the thermal power of sorption is measured and from this one may calculate the differential enthalpy of sorption. The thermal power measurements are made by inserting the sorption vessel in an isothermal double twin microcalorimeter.},
  author       = {Wadsö, Lars and Markova, Natalia},
  issn         = {1089-7623},
  language     = {eng},
  number       = {7},
  pages        = {2743--2754},
  publisher    = {American Institute of Physics},
  series       = {Review of Scientific Instruments},
  title        = {A method to simultaneously determine sorption isotherms and sorption enthalpies with a double twin microcalorimeter},
  url          = {http://dx.doi.org/10.1063/1.1484159},
  volume       = {73},
  year         = {2002},
}