... provide the high quality Maleic Anhydride Flake/Briquette 2,purity:99.5% 3,60000MT/YEAR 4,packing: 25kg/bag, ... additive of plastics, etc. It is main material of binary acid with four carbons, 1,4-butanediol r-butyrolactone, tetrahydrofuranPacking: ... -92 Extra Grade Measured ValueAppearanceWhite Briquette /FlakeWhite Briquette/FlakePurity% ≥99.599.57Molten color(APHA) ≤2020Solidifying point °C≥52.452. ...