What substance is added to formaldehyde in order to remove the precipitate produced by prolonged storage?
A)Acetone
B)Acetic acid
C)Methanol
D)Distilled water

Question

Quizplus · Accepted Answer

Methanol
Methanol is the substance that is added to formaldehyde in order to remove the precipitate produced by prolonged storage. Methanol prevents its decomposition to formic acid but it serves to denature protein, thereby rendering formaldehyde unsuitable as a fixative for electron microscopy.

What Substance Is Added to Formaldehyde in Order to Remove