Determination of 1% sodium hydroxide solubility can be applied to wood ,unbleached and Bleached pulp.
Wood or pulp is extracted with hot 1% sodium hydroxide solution for 1 h.
Determines loss in weight and calculated as percent solubility.
Solubility of wood indicates the degree of fungus decay or of degradation by heat, light, oxidation, etc.
Solubility of pulp indicates an extent of cellulose degradation during pulping and bleaching processes and has been related to strength and other properties of pulp.
Safety precautions:
Sodium hydroxide is a strong caustic.
Sodium hydroxides are corrosive and damaging to human skin.
