Pdf !link! - Astm D2074

using an alternative indicator method. It is primarily utilized in the chemical and surfactant industries to measure the alkalinity or nitrogen content of these substances. Key Aspects of ASTM D2074

To ensure performance consistency in industrial applications, manufacturers must precisely measure amine values. The American Society for Testing and Materials (ASTM) provides a standard protocol for this measurement via .

Salicylaldehyde is added to a second sample aliquot. It reacts with and blocks primary amines by forming a Schiff base. The remaining unblocked secondary and tertiary amines are then titrated.

Understanding ASTM D2074: Standard Test Methods for Amine Values of Fatty Amines astm d2074 pdf

: Once the total, primary, and secondary amine values are known, the tertiary amine value is easily determined by subtraction: Total Amine Value - (Primary Amine Value + Secondary Amine Value).

The ASTM D2074 document outlines several pathways to achieve accurate titration, primarily focusing on alternative indicators and potentiometric setups to handle different sample matrices. 1. Total Amine Value

Customers use these values to verify that the amine meets required specifications for reactivity. using an alternative indicator method

The ASTM International website offers the PDF for approximately $64.00 - $77.00 .

Conduct all operations involving salicylaldehyde, acetic anhydride, chloroform, or toluene inside a certified laboratory chemical fume hood.

You can also find it on platforms like the ANSI Webstore or Standards iTeh . The American Society for Testing and Materials (ASTM)

If you need help implementing this standard, let me know if you would like me to detail the used to calculate the amine values or provide a comparison between ASTM D2074 and ASTM D2073 (the potentiometric method). Share public link

: A similar blocking reaction is performed, this time using phenyl isothiocyanate (phenyl isocyanate in some revisions) to react with secondary amines. The secondary amine value is found by comparing the titrations of the original sample and the reacted sample.

The ASTM D2074 PDF is an essential standard for various industries, including:

The active version is ASTM D2074-07(2019) , which was originally approved in 1962 and most recently reapproved in 2019.

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