alpha cellulose
That part of a cellulosic material that is
insoluble in a 17.5% solution of sodium hydroxide
at 20° C. under specified conditions. While
alpha cellulose consists principally of cellulose,
it does include other components that are
insoluble under the test conditions. Because the
permanence of paper depends to some extent on the
absence of non-cellulosic impurities, the
determination of true cellulose (alpha cellulose)
gives an indication of the stability of the paper,
and therefore its permanence. See also: BETA CELLULOSE ;CELLULOSE ;GAMMA CELLULOSE .
(17 , 72 , 144 )