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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 14, Number 4
JKCSEZ 14(4)
August 20, 1970

Title	Studied on the Mass Transfer and the Vacuum Condensing Point of Sublimatography (Ⅰ)-Relations between the Heating Temperature and the V.C.P at different Degree of Vacuum-
Author	Jin Un Sohn, Joo Bong Kim
Keywords
Abstract	The relation between the heating temperature and the V.C.P (Vacuum Condensing Point) at different degree of vacuum through the sublimatographic separation was studied where by; (1) Anthracene and Anthraquinone, α-Naphthol and β-Naphthol, ο-Aminobenzoic acid and p-Aminobenzoic acid were easily separated from each of its mixtures as shown in Figure 9, 10 and 11, while tailings appeared appreciably. The results were in good agreement with those expected from the th-V.C.P curves in Figures 3, 4, 5, 6, 7 and 8. (2) The relation between the degree of vacuum and the V.C.P. of α-Naphthol and Anthracene at different heating temperatures appeared as follows and are shown in Figures 12 and 13. tv.c.p=α+β log Pva where tv.c.p; vacuum condensing point(℃) Pva; degree of vacuum (mmHg) α,β; proportionality constant at heating temperature (3) The V.C.P of each substance as physical properties were shown as table 1, comparing those of m.p and b.p.
Page	321 - 326
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