... , water treatment agent paint 3:Purity:99.5% flake Maleic Anhydride is important organic chemical raw materials, mainly used for synthesis ... point 52.8 °C, boiling point 202 °C, 179.5 °C (53.3kPa), 155.9 °C (26.7kPa), 135 ... Pastille ,Briquet Molten type or flakesPurity(Total acid)wt%99.50 MinSolidification Point°C52.45 MinMolten ColorAPHA20 MaxAshwt/%0. ... Maleic Anhydride flakes MA C4H2O3 108-31-6 99.5%