Maleic acid is an industrial raw material for the production of glyoxylic acid by ozonolysis. It may be used to form acid addition salts with drugs to make them more stable, such as indacaterol maleate. Maleic acid is also used in manufacturing synthetic resins; in textile processing; in preserving oils and fats; to retard rancidity of fats and oils in 1:10,000 (these are said to keep 3 times longer than those without the acid); dyeing and finishing wool, cotton, and silk; preparing the maleate salts of antihistamines and similar drugs.
Maleic acid is used as a precursor to fumaric acid, dimethyl maleate and glyoxalic acid. It is an electrophile and acts as dienophine in Diels-Alder reactions.

Product Parameters

25kg bags, net weight 20mt per 20'FCL, without pallets;
net weight 27mt or 28mt per 40'FCL with or without pallets

Shandong Longze Chemical Co.,Ltd mainly produces and supplies Dimethyl carbonate, Propylene glycol, Propylene carbonate, Diethyl carbonate, Isopropyl alcohol, Diisopropyl ether, succinct acid and Maleic acid, etc.At present,our business have been involved in some industries like coatings&Paints, cosmetics&foods&flavors&pharmas, Resins&plasticizer&PU and drilling &oil recovery chemicals, etc.With strict quality control and continuous innovation, we already get the certificate of ISO 9001, Kosher and Halal certificate. Looking to the future, Longze will strive to establish a long-term and stable cooperation with professional companies all around the world. With harmonious and enterprising spirit and professional & focusing attitude, we keep making innovations and seeking to be a outstanding company, and working hard to make Longze be a competitive, united, honest and sustainable enterprise.
Our Advantages
Stable supplying and timely delivery to customers
Integrity and perfect tracking management
High quality products and better services
Professional experience and skills on operating dangerous products and non-dangerous products
We specialize in this field for 19 years, with the strength of
Dimethyl carbonate, propylene glycol (tech, food, USP grade), propylene carbonate, Isopropyl alcohol, Diisopropyl ether, succinic acid, Maleic acid and the other products.
Our HK company, Wanchem international limited, is specializing in petroleum additives, petroleum
equipment, Solvents and some food additives.At present, our business have been involved in some industries like coatings&Paints, cosmetic&personal care, Flavor&Fragrancy, Pharmaceutical&food, Resins and drilling&oil recovery chemicals, etc. So you can find more items together from us conveniently which saves much time for you.