Health & Environmental Research Online (HERO)


Print Feedback Export to File
8310027 
Journal Article 
Molten inorganic salt hydrates as cellulose solvents 
Fischer, S; Leipner, H; Brendler, E; Voigt, W; Fischer, K 
1999 
Yes 
ACS Symposium Series
ISSN: 0097-6156
EISSN: 1947-5918 
Oxford University Press 
ACS Symposium Series 
737 
143-150 
English 
Molten inorganic salt hydrates can be used to dissolve cellulose. According to the salt concentration molten salt hydrates are arranged between concentrated salt solutions and anhydrous melts. As new cellulose solvents molten LiClO4*3H2O and LiI*2H2O were found. Mixtures of LiClO4*3H2O with e g. Mg(ClO4)2 are also able to swell or dissolve cellulose. The eutectic mixture of NaSCN/KSCN with different amounts of added LiSCN*2H2O constitutes another group of solvents. The crystallite dimensions of the regenerated cellulose II samples varry in dependence on the melt composition. The structural change of the cellulose after regenerating was confirmed by Scanning Electron Microscopy (SEM). To investigate the interactions between cellulose and molten salts solvent state 13C-NMR experiments were carried out.