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ID 18341
file
title alternative
Detergency of Alkaline Ionized Liquid
creator
Miyamoto, Shiori
subject
alkaline ionized liquid
detergency
DLVO theory
potential barrier
adsorption and desorption rate constants
アルカリイオン水
洗浄力
DLVO theory
ポテンシャル障壁
吸・脱着速度定数
NDC
Domestic arts and sciences
abstract
The detergency of the alkaline ionized liquid of pH 9.6 was compared with that of the ion exchanged water (pH 5.8) and the acid ionized liquid (pH 2.9) by applying DLVO theory. Polystyrene latex particle and sodium dodecyl sulfate (SDS) were considered to the fiber and the solid particle charged with negative ions in water respectively. It was supposed that the potential barriers of adsorption and desorption corresponded to the adsorption and desorption rate constants (ka, kd). The two constants (ka, kd) of SDS to and from polystyrene latex were determined through the stopped-flow technique. The adsorption rate constants were 10.6×104, 3.55×104 and 8.44×104 mol-1dm3s-1, the desorption rate constants were 8.43, 8.62 and 9.29 s-1, the values of ka/kd were 1.26×104, 4.12×103 and 9.09×103 mol-1dm3 and the standard free energy change (ΔG) was -7.84, -7.19 and -7.65 kcal mol-1 for the ion exchanged water, the alkaline ionized liquid and the acid ionized liquid respectively. The adsorption rate constants were dependent upon the water hardness of the used liquids and the desorption rate constants were dependent upon ζ-potential of polystyrene latex particles in the liquids. The smaller the value of ka/kd was, the more the washing condition was effective. The detergency of the alkaline ionized liquid was determined by comparison with ΔG of the other liquids. It was made clear that the detergency of the alkaline ionized liquid was 1.09 times of the ion exchanged water and 1.07 times of the acid ionized liquid.
journal title
Bulletin of the Graduate School of Education, Hiroshima University. Part. II, Arts and science education
issue
Issue 55
start page
343
end page
349
date of issued
2007-03-28
publisher
広島大学大学院教育学研究科
issn
1346-5554
ncid
SelfDOI
language
jpn
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Education
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