stirring the solution all the time. If the solution becomesdarkblue, you will
have tostartall over again. When the ammonium hydroxide ceases to make the
solutionturnany lighter, pourthe liquidthrougha funnel.linedwith filter
paperinto thethirdjar. Now put the filterpaperand everything caught in it
into the fourth jar. Addjustenough concentratedammoniumhydroxide to
dissolve the filter paper.Pour11 tablespoonfuls'ofdilute sulfuric acid into the
fifth jar.CAUTION:Do not let anyofthe acid touch you. Clean the eyedropper
and use it to squirt with even pressure the bluesolutionfrom thefourthjarinto
thejarof dilute sulfuric acid. Hold the tip of thedropperunder the surfaceof
the sulfuric acid. Finally, remove the result with the glass stirring rod and wash
and dry it.Results:After you addedammoniumhydroxide to thejarthatcontainedthe
filter paper, a thick,darkblue jelly-like substance was formed. This is acellulose
sol.Cellulose is the same substancethatmakes up the walls of plant cells.Itis
the basic ingredient ofpaperand also of all synthetic fabrics. In this experiment,
you got cellulose from the filter paper. A sol is a mixtureofa liquid and very
fine, solid undissolved particles. The solid particles are so densely packed into
the liquidthatthe sol has a jelly-like consistency.