§ 21.93 Acetaldehyde.
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(a) Aldehyde content (as acetaldehyde). Not less than 95.0 percent by weight.
(b) Color. Colorless.
(c) Odor. Characteristic pungent, fruity odor.
(d) Specific gravity at 15.56 °/15.56 °C. Not less than 0.7800.