PAPER TITLE :SODIUM HYDROXIDE-ANTHRAQUINONE AND SODIUM HYDROXIDE -ANTHRAQUINONE-ETHANOL PULPING AND THEIR PREPARED CARBOXYMETHYLCELLULOSE

FUTA JOURNAL OF RESEARCH IN SCIENCE | VOLUME 11 NUMBER 2 2015

Paper Details

  • Author(s) : O.O. Oluwasina, L. Lajide and B.J. Owolabi
  • Abstract:

Alpha-cellulose of 49.44 % to 52.83% was isolated from waste agricultural plants: Pennisetum purpurem, Ananas comosus, and Chromoleana odorata, using sodium hydroxide-anthraquinone and sodium hydroxide-anthraquinoneethanol mixture as pulping liquors. The results revealed a gradual reduction in the ash, silica and pentosan content from pulp sample to the alpha-cellulose. It was observed that, though with smaller fraction value, the materials obtained using sodium hydroxide-anthraquinone-ethanol mixture as pulping liquors had slightly better properties than those obtained with sodium hydroxide-anthraquinone. Pulp, bleached pulp and alpha-cellulose obtained through sodium hydroxide-anthraquinone-ethanol pulping liquor had lower silica and ash content, but higher yield, viscosity, degree of polymerization and molecular weight. The yields of the prepared Carboxymethyl cellulose ranged from 80.71 % to 91.10 %, the pH ranged from 6.30 to 6.73, ash content of 0.40 to 0.43 %, sodium chloride content of 0.14 to 0.16 %, with moisture ranging from 4.67 to 4.83 The results of the analysis of carboxymethyl cellulose CMC indicated that most of their determined properties were within the specified range of standard recommended such as United State Pharmacopeia and British Pharmacopoeia.   Keywords: Pulping, Alpha-cellulose, Carboxymethyl-cellulose; Pennisetum purpurem; Ananas comosus; Chromoleana odorata;