... . Soluble in water, dissolved when the heat, alkaline aqueous solution, there are creamy feel; soluble in ethanol and glycerin; ... acidic substances, must use caustic soda, caustic soda, sodium hydroxide solution, washed, and then by washing in order to obtain ... , gums, etc.). Add dilute caustic soda, caustic soda, sodium hydroxide solution can be dissolved in the separation of non-cellulose components ...