... , tetrahydrofuran, y-propyl, and many small manufacturing hydrogenated anhydride. items ValueContent ,%≥99.55Molten Color (Pt - Co), APHA≤25Crystallization point ,° ... as "HongSanJiao"soda ash,"HongSanJing"caustic soda & PVC resin, Maleic anhydride, TD detergents, sodium metasilicate pentahydrate,etc. we have established ... solution and the most efficient service after sale. Maleic anhydride 99.5%