Also examine microscopically if acetate or amyl acetate
odor is noted.
The pipette is first filled with amyl acetate to the 2.5-[micro]L mark.
Using the stereomicroscope with either coaxial or transmitted light, a 1- to 2-nL drop of amyl acetate is placed directly below and slightly to the side of the 0.1-mm particle being examined.
Again, the soluble components will be dissolved in the amyl acetate. As the amyl acetate evaporates, the soluble fraction will remain beneath the needle.
The particle is then moved over a few millimeters and the adhesive is extracted using amyl acetate. The inorganic filler can be submitted for EDX analysis or pressed into a thin film and analyzed by infrared as well.
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, 2.5 Parts Acetone, 2.5 Parts Toluene And 1 Part Spirit ; Specns Of Ingradients Is:231