If the shaft of the mixer is placed
in the center of a bucket, ________
will occur.
oxidation
(34) State the main reason why solution
should not be mixed with the shaft
of the electric mixer in the center
of the container.
___ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
___ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
To prevent oxidation of the solution.
EXERCISE
5.
If the shaft of the electric mixer is placed in the center of the mixing container, air will be
introduced into the solution resulting in (select one)
a.
air being forced out, thus ruining the solution.
b.
oxidation, which will ruin the solution.
c.
the chemicals dissolving too rapidly and ruining the solution.
d.
failure of oxidation, thus ruining the solutions.
1-6.
REARRANGE, IN THEIR PROPER SEQUENCE, A GIVEN LIST OF STEPS THAT ARE
REQUIRED WHEN MIXING A PHOTOGRAPHIC SOLUTION FROM BULK CHEMICALS.
a. When mixing a photographic solution from bulk chemicals, you must first weigh out the
required amounts of chemicals called for in the formula.
b. Secondly, you must fill the mixing container with hot water to the desired level, usually about
2/3 of the final amount of solution desired. Use 90-125F water for most mixing.
c. The third step is to dissolve the weighed chemicals in hot water, pouring the chemicals
slowly into the water.
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