... manufacture of dyes and drugs; occurs in gasoline and petroleum solvents; colorless liquid with characteristic odor; boiling point for o-, m-, and p- isomers 144 .4, 139.1, and 138 .4 C, respectively; ... CONTAINERS, PRESERVATIONS, AND HOLDING TIMES Analyte Container PreservationMaximumholdingtime Inorganics and microbial tests Acidity P,G Cool, 4 C 14 dAlkalinity P,G Cool, 4 C 14 dBacterias, ... especially in thecase of oxidizing and reducing agents in redox reactions. In such reactions,equivalent weight is determined from the change in oxidation number on theelement during titration....