The effect of HS- ions in 1-mol/l NaOH solutions on the ion diffusion in wood calculated as the steady state diffusion and the drift speed

Magnus Törnqvist; Tapio Hurme; Jarl B. Rosenholm

doi:10.1515/HF.2002.065

The effect of HS- ions in 1-mol/l NaOH solutions on the ion diffusion in wood calculated as the steady state diffusion and the drift speed

Magnus Törnqvist, Tapio Hurme, Jarl B. Rosenholm

Laboratory of Molecular Science and Engineering

Research output: Contribution to journal › Article › Scientific › peer-review

Abstract

Diffusion tests in pine, birch and spruce were done with different Na2S fractions of 1-mol/l NaOH solutions. The steady state diffusion was found to be dependent on the original moisture content present in the wood samples and the concentration of the electrolyte, but not the HS- ions. The drift speed was dependent on the mobility of the HS- ions, reducing the flux as compared to the OH- flux in pure NaOH solutions. The moisture content originally present inside the wood samples affected the migration, especially in the longitudinal direction due to structural effects.

Original language	English
Pages (from-to)	422-427
Number of pages	6
Journal	Holzforschung
Volume	56
Issue number	4
DOIs	https://doi.org/10.1515/HF.2002.065
Publication status	Published - 2002
MoE publication type	A1 Journal article-refereed

Keywords

Birch
Ion diffusion
NaOH-Na2S combinations
Pine
Spruce

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10.1515/HF.2002.065

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abstract = "Diffusion tests in pine, birch and spruce were done with different Na2S fractions of 1-mol/l NaOH solutions. The steady state diffusion was found to be dependent on the original moisture content present in the wood samples and the concentration of the electrolyte, but not the HS- ions. The drift speed was dependent on the mobility of the HS- ions, reducing the flux as compared to the OH- flux in pure NaOH solutions. The moisture content originally present inside the wood samples affected the migration, especially in the longitudinal direction due to structural effects.",

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AU - Hurme, Tapio

AU - Rosenholm, Jarl B.

PY - 2002

Y1 - 2002

N2 - Diffusion tests in pine, birch and spruce were done with different Na2S fractions of 1-mol/l NaOH solutions. The steady state diffusion was found to be dependent on the original moisture content present in the wood samples and the concentration of the electrolyte, but not the HS- ions. The drift speed was dependent on the mobility of the HS- ions, reducing the flux as compared to the OH- flux in pure NaOH solutions. The moisture content originally present inside the wood samples affected the migration, especially in the longitudinal direction due to structural effects.

AB - Diffusion tests in pine, birch and spruce were done with different Na2S fractions of 1-mol/l NaOH solutions. The steady state diffusion was found to be dependent on the original moisture content present in the wood samples and the concentration of the electrolyte, but not the HS- ions. The drift speed was dependent on the mobility of the HS- ions, reducing the flux as compared to the OH- flux in pure NaOH solutions. The moisture content originally present inside the wood samples affected the migration, especially in the longitudinal direction due to structural effects.

KW - Birch

KW - Ion diffusion

KW - NaOH-Na2S combinations

KW - Pine

KW - Spruce

UR - https://www.mendeley.com/catalogue/39bef71e-98ca-3960-b73a-cc65b2fd702d/

U2 - 10.1515/HF.2002.065

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VL - 56

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EP - 427

JO - Holzforschung

JF - Holzforschung

IS - 4

ER -

The effect of HS- ions in 1-mol/l NaOH solutions on the ion diffusion in wood calculated as the steady state diffusion and the drift speed

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Keywords

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