Page 



APPENDIX 23 



Table 1~DTA thermal behavior of cellulose and (NHt^ )2 HPO^ 



treated cellulose 24 



Table 2~DTA thermal behavior of cellulose and (NH4)2SOit 



treated cellulose 24 



Table 3— Effect of (NH4)2HP04 and (NH14 ) 2^0h on pyrolysis 



and combustion threshold temperature ( °C. ) 25 



Table 4~TGA-DTG thermal behavior of cellulose and (NH4)2HPOi+ 



treated cellulose in nitrogen 25 



Table 5 — TGA-DTG thermal behavior of cellulose and (NH4')2SO 1+ 



treated cellulose in nitrogen 26 



Table 6~TGA and DTG thermal behavior of cellulose and (NH4 )2 HPO1+ 



treated cellulose in air 26 



Table 7~TGA-DTG thermal behavior of cellulose and (NH^ )2 SO1+ 



treated cellulose in air 27 



