The concentration dependence of the diffusion coefficient in Pine, Birch and Spruce

Authors
Tornqvist, M Hurme, T Rosenholm, JB
Citation
M. Tornqvist et al., The concentration dependence of the diffusion coefficient in Pine, Birch and Spruce, PAP PUU, 83(3), 2001, pp. 204-209
Citations number
16
Categorie Soggetti
Material Science & Engineering
Journal title
PAPERI JA PUU-PAPER AND TIMBER
ISSN journal
00311243 → ACNP
Volume
83
Issue
3
Year of publication
2001
Pages
204 - 209
Database
ISI
SICI code
0031-1243(2001)83:3<204:TCDOTD>2.0.ZU;2-2
Abstract
The diffusion of the normal cooking liquors Na2S and NaOH into birch, north ern pine and spruce was studied in tangential and longitudinal directions. The diffusion coefficient of NaCl was used to calculate the tangential acti ve cross-sectional area. Based on a wide range of concentrations, a concent ration dependency of the diffusion coefficient for each salt could graphica lly be shown.