CONTENTS 



Page 



INTRODUCTION 1 



EXPERIMENTAL PROCEDURE 2 



Samples 2 



Differential Thermal Analyses 2 



Thermogravimetric and Derivative Thermogravimetric Analyses 2 



RESULTS 4 



Thermal Behavior of (NHi+)2HP0^ and (NH^)2S04 4 



Differential Thermal Analyses 4 



Thermogravimetric and Derivative Thermogravimetric Analyses 5 



COMPARISON OF METHODS AND RESULTS 7 



Discussion 9 



THERMOGRAMS 11 



A~DTA thermograms of (NH^)2HP0 4, NH4H2PO4 , and (NH4 )2 SOt^ 



when heated at 25° C. per minute in a flow of 1 liter per minute air. .... 11 

 B~TGA thermograms for (NH4)2HPO[+ and (NH^ )^ SO heated at 25' C. 



per minute in a flow of 1 liter per minute air 11 



DTA thermograms of cellulose and treated cellulose heated at 25" C. 



per minute in a flow of 1 liter per minute nitrogen 12 



DTA thermograms of cellulose and treated cellulose heated at 25° C. 



per minute when fluidized with 100 cc. per minute air 13 



TGA thermograms of cellulose and (NHi+)2HPOi+ treated cellulose 



heated at 25° C. per minute in a flow of 100 cc, per minute nitrogen 14 



TGA thermograms of cellulose and (NH4)2SO 4 treated cellulose 



heated at 25° C. per minute in a flow of 100 cc. per minute nitrogen 15 



TGA thermograms of cellulose and (NH4)2HP04 treated cellulose 



heated at 25° C. per minute in a flow of 100 cc. per minute air 16 



TGA thermograms of cellulose and (NHt+)2SO 4 treated cellulose 



heated at 25° C. per minute in a flow of 100 cc. per minute air 17 



DTG thermograms of cellulose and (NHi+) 2HPOi^ treated cellulose 



heated at 25° C. per minute in a flow of 100 cc. per minute nitrogen 18 



DTG thermograms of cellulose and (NHl,)2S0 ^ treated cellulose heated 



at 25° C. per minute in a flow of 100 cc. per minute nitrogen 19 



DTG thermograms of cellulose and (NH4)2HPO^ treated cellulose 



heated at 25° C. per minute in a flow of 100 cc. per minute air 20 



DTG thermograms of cellulose and (NHi+)2SOi+ treated cellulose 



heated at 25° C. per minute in a flow of 100 cc. per minute air 21 



LITERATURE CITED 22 



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