Description : This is a colorless or white solid organic compound which is an anhydride of maleic acid. It is industrially produced to be used in polymers and coating industries. Application : Unsaturated Polyester Resin (UPR), Alkyd Resin, Paints, Plasticizers for Polymethacrylate Polystyrene for pvc, Tetra-hydro Phthalic Anhydride, Endomethylene Tetra Hydro, Endoxohexa Hyrophthalic Anhydride, Maleic Acid, Pesticides. Packing : 25 Kg Bag Packing Specifications : Parameter Value Molecular Formula C4H2O3 Mol Wt 98.05 CAS # [108-31-6] Description White briquettes Purity (%) by GC 99.8 min MP in deg cel 52.6 max Melting Colour in APHA 20 max Heat stability (90 min at 140 deg cel) in APHA 50 max Free acidity (%) 0.30 max Ash in ppm 5 max MSDS