unsaponifiable matter is present in rosin in varying amounts.
This fat is somewhat tough and sticky, and the amount of unsaponifiable matter present is sometimes considerable.
unsaponifiable matter, determination of by standard method, 176.
The residue, dried in the oven at 100° C. until constant, is the "unsaponifiable matter," which is calculated to per cent.
Besides these it is often necessary to determine insoluble matter, glycerine, unsaponifiable matter, rosin and sugar.
unsaponifiable matter should not be confused in the lay mind with insoluble impurities or soluble mineral matter.
The unsaponifiable matter in these is purely natural, it will be seen it varies within wide limits.
These oils vary in their saponification number from 10 to 60, while their unsaponifiable value averages about 80.
saponify sa·pon·i·fy (sə-pŏn'ə-fī')
v. sa·pon·i·fied, sa·pon·i·fy·ing, sa·pon·i·fies
To undergo saponification.