Part I - Studies in the microanalysis of gases. Part II - The chemisorption of water by an activated carbon
department or school: Science, Faculty of
department or school: Chemistry, Department of
data provider: DSpace
degree campus: UBCV
creator: Constabaris, George
issued: 2012-03-21T21:28:20Z
issued: 1948
related degree: Master of Arts - MA
degree grantor: University of British Columbia
description: I. In a special form of micro gas analysis apparatus the following methods may be used to obtain quantitative separations. Carbon dioxide can be removed at 70°C. by absorption in a mixture of sodium, potassium, and lithium hydroxides. Hydrogen, in the presence of carbon monoxide and methane, can be removed by diffusion through a palladium tube at 325°C; no irregularities occur at this temperature. Carbon monoxide is quantiatively oxidized by a mixture of silver oxide and hopcalite at room temperature. Acetylene is removed by condensation in liquid air. II. The surface of an activated carbon may be oxidized by water at room temperature. The reaction produces at least 1.92 micromols of hydrogen per gram of carbon. An equilibrium is established between the hydrogen, water, and the surface complex, after relatively long periods of time. The nature of the complex is not indicated.
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/41680
note: 37 C £ <&g> PART I - STUDIES II THE MICROANALYSIS OP GASES PART II - THE CHEMISORPTIOH OF WATER BY AH ACTIVATED CARBON GEORGE COE3TABARIS A thesis submitted i n partial fulfilment of the requirements for the Degree of MASTER OF ARTS In the Department of CHEMISTRY The University of Brit i s h Columbia. April, :1948. ABSTRACT I . I n a s p e c i a l form of micro gas a n a l y s i s apparatus the f o l l o w i n g methods may be used to o b t a i n q u a n t i t a t i v e s e p a r a t i o n s . Carbon d i o x i d e can be removed a t 70°C. by a b s o r p t i o n i n a mixture of sodium, potassium, and l i t h i u m h y d r o x i d e s . Hydrogen, i n the presence of carbon monoxide and methane, can be removed by d i f f u s i o n through a p a l l a -dium tube a t 32j>°C; no i r r e g u l a r i t i e s occur a t t h i s temper-ature* Carbon monoxide i s q u a n t i a t i v e l y o x i d i z e d by a mixture of s i l v e r oxide and h o p c a l i t e a t room temperature. A c e t y l e n e i s removed by condensation i n l i q u i d a i r . I I . The s u r f a c e o f an a c t i v a t e d carbon may be o x i d i z e d by water a t room temperature. The r e a c t i o n produces at l e a s t 1.92 micromols of hydrogen p e r gram of carbon. An e q u i -l i b r i u m i s e s t a b l i s h e d between the hydrogen, water, and the s u r f a c e complex, a f t e r r e l a t i v e l y l o n g p e r i o d s of time. The nature of the complex i s n o t i n d i c a t e d . ACKNOWLEDGEMEHT I wish t o take t h i s o p p o r t u n i t y to express my s i n c e r e thanks t o Dr. M. J . M a r s h a l l , who d i r e c t e d t h i s r e s e a r c h . TABLE OF CONTENTS INTRODUCTORY NOTE 1 PART I - I INTRODUCTION 4 II DESCRIPTION OF ANALYSIS APPARATUS 7 III METHODS OF OBTAINING THE PURE GASES 10 IV EXPERIMENTAL RESULTS 14 V .SUMMARY 24 PART II I INTRODUCTION 26 II APPARATUS 28 III EXPERIMENTAL 33 IV DISCUSSION 47 V SUMMARY 49 BIBLIOGRAPHY 50 1 INTRODUCTORY NOTE The d i v i s i o n of t…
has type: Thesis/Dissertation
is shown at: 10.14288/1.0062315
language: eng
degree discipline: Chemistry
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
scholar level: Graduate
type: Text
identifier URI: http://hdl.handle.net/2429/41680