KCS Publications

HOME > Search > Browsing(JKCS) > Archives

Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 6, Number 2
JKCSEZ 6(2)
April 20, 1962

Title	Changes of Degree of Decoloration and X-ray Powder Patterns of Korean Acid Clay by Thermal Treatment 한국산 산성백토의 가열도에 의한 탈색력과 분말 X선사진의 변화
Author	Kwan-sub Han, Hong-koo Park 한관섭, 박홍구
Keywords
Abstract	Three kinds of acid clay are chosen as samples; sample-Ⅰ is the Korean acid clay, sample-Ⅱ is prepared by heating the mixture of the Korean acid clay with 20% H2SO4 for 4 hrs., and the sample-Ⅲ, the reference sample, is the Japanese acid clay supplied by Katayama Chem.Co.. 15 samples are prepared by heating them at temperatures of 100℃, 300℃, 500℃, 700℃, and 900℃ for 6 hrs. separately. The adsorption experiments are carried out on these samples using bromophenol blue water soln.(conc., 0.001%) as adsorbate. It is found that the degree of decoloration depends upon the temperature of thermal treatment, i.e., the higher the temperature the lower the degree of decoloration is. At any specified temperature of thermal treatment, the degree of decoloration is in following order: sample Ⅱ > sample Ⅰ > sample Ⅲ. The X-ray photographs of the samples show that the intensities of a few specified lines decrease with increasing temperature of thermal treatment.
Page	158 - 161
Full Text	PDF

How to access to the WOL for The Bulletin of the Korean Chemical Society ?

The Bulletin of the Korean Chemical Society will be co-published with Wiley-VCH from 2015 towards. The online version of the Journal will thus be available on Wiley Online Library, Wiley(-VCH)'s global online platform.

KCS members can get a free online access to the Bulletin of the Korean Chemical Society in WOL.

Free Access to WOL