Astm D2074 Pdf Official

Ask for the for primary or secondary amines.

: Determined by titrating the sample with standard hydrochloric acid (HCl) using a color indicator (typically bromphenol blue). Primary, Secondary, and Tertiary Amine Values

The standard describes a titration procedure used to calculate the "amine value," which is the number of milligrams of potassium hydroxide (KOH) equivalent to the basicity in 1 gram of a sample. : Indicators : Bromphenol blue and bromcresol green.

Specific reagents like salicylaldehyde or phenyl isothiocyanate are added to reacting samples to isolate specific amine types before titration.

Finding the right solvent ratio to dissolve dark, heavy oil without causing phase separation is tricky. The ASTM D2074 provides specific guidance on troubleshooting turbidity.