This test method covers the determination of free maleic acid in refined maleic anhydride by potentiometric titration. This test method is applicable for all concentrations of maleic acid; however, it is primarily used for concentrations below 0.5 %
The maleic acid content is usually an indication of exposure to moisture in air. Maleic anhydride reacts with moisture to form maleic acid.The standard will be used by maleic anhydride producers and custmoers for quality control and trade.
Keywordsmaleic acid; maleic anhydride; titration
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
Draft Under Development