... in water generate a green pigment, c33h34n4o6, relative density of 1.480, 52.85 °C, the boiling point of the ... point ,°C≥52.4Ash ,%≤0.005Iron (Fe) ,PPM≤5Application: a.Maleic anhydride's main purpose is to produce thermosetting resin, unsaturated polyester. ... produce alkyd resin, paint, dyeing auxiliaries, plasticizer (such as maleic acid), lubricating oil additives and fat and grease preservative of ...