Astm D2074 Pdf ((new)) -

The full technical procedure, including reagents and precise calculation formulas, is detailed in the official PDF document. Below is a summary of the methodology required. 1. Apparatus and Reagents

: Found in industrial coolants and hydraulic fluids.

When added to the sample, salicylaldehyde reacts selectively with primary amines to form Schiff bases. This reaction effectively blocks the basicity of the primary amines, allowing the secondary and tertiary amines to be titrated independently. astm d2074 pdf

: The combined basicity of all amine groups in the sample.

The "amine value" refers to the number of milligrams of potassium hydroxide (KOH) equivalent to the basicity of one gram of the sample. This metric is a vital indicator of the purity and reactivity of the chemical. Scope and Application The full technical procedure, including reagents and precise

To perform this test according to the ASTM guidelines, you generally need: Titration Apparatus : Burettes, Erlenmeyer flasks, and a magnetic stirrer. Standardized Solutions : 0.1 N or 0.5 N Hydrochloric Acid (HCl). Indicators : Bromphenol blue (color change from yellow to blue/green). : Isopropyl alcohol and chloroform. : Salicylaldehyde (for blocking primary amines). How to Access the Full PDF ASTM International standards are copyrighted documents

: This article is provided for informational purposes only. It does not constitute legal or technical advice. Standards statuses and availability change over time. Always verify the current status of any standard directly with the issuing body (ASTM International) before making decisions based on that standard. This article does not authorize or encourage any infringement of ASTM copyright. Apparatus and Reagents : Found in industrial coolants

ASTM D2074 is a standard test method published by ASTM International. Its formal title is

ASTM D2074 relies on acid-base titration in non-aqueous solvents. Because fatty amines feature long hydrophobic carbon chains (typically C8cap C sub 8 C22cap C sub 22

Manufacturers must guarantee that their fatty amine shipments meet customer specifications regarding primary, secondary, or tertiary amine content.