фумаровая кислота

Fumaric acid enjoys high popularity and reputation in the business for a long time. In addition, our products have been sold in the USA, some European countries and Japan, always praised by our customers. All products of our company got ISO Quality System Authentication in 2002,and they were pre-registered under one EU rule: REACH (REGISTRATION EVALUATION AND AUTHORISATION OF CHEMICALS) in November,2008,which laid the foundation for our products entering those EU countries . FUMARIC ACID It is mainly used to produce unsaturated poyester resin, synthetic resin, asparaginic acid, sweetening agent, malic acid, tartaric acid and food additives. Physicochemical Properties: It is always odourless crystalline substance, white and fruity acidic taste. Combustible butstable in the air.Proportion:1.635(20/4).Melting point:286-287.It sublimates at 200.It is slightly soluble in cold water, ether and benzene, easily soluble in hot water and ethanol. Maleic anhydride can be produced after it has been heated to 300 and loses moisture. Main Quality Index Index NameFood GradeFeed GradeAppearancewhitewhiteTotal Acid Number≥99.599.0Melting Point287-302282-285Cautery0.05No StandardSulphate0.01No StandardHeavy Metal0.002No Standard