Efficient electrophilic catalysis of 1,5-anhydrocellobiitol hydrolysis by Al(III); implications for the conservation of "rosin-alum" sized paper.
Added Al2SO4 greatly accelerates the hydrolysis at 150.0 degrees C of 1,5-anhydrocellobiitol, a model for the beta(1 --> 4) linkages in cellulose, in succinate buffers of room temperature pH 3.05 and 3.35; E(a) values for 20 mM Al(III)- and H+-catalysed hydrolyses are 109 +/- 3 and 140 +/- 1 kJ mol(-1), respectively.
Baty
John
J
Department of Textiles and Paper, UMIST, Manchester, UK. J.Baty@postgrad.umist.ac.uk
Sinnott
Michael L
ML
D000534:Alum Compounds / Q000737:chemistry; D000535:Aluminum / Q000737:chemistry*; D002384:Catalysis; D002412:Cations / Q000737:chemistry*; D002475:Cellobiose / Q000031:analogs & derivatives*; D004187:Disaccharides / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D006868:Hydrolysis; D007700:Kinetics; D019802:Succinic Acid / Q000737:chemistry; D013696:Temperature
C499347:1,5-anhydrocellobiitol; D000534:Alum Compounds; D002412:Cations; D004187:Disaccharides; D002475:Cellobiose; C041524:aluminum sulfate; D019802:Succinic Acid; D000535:Aluminum