99.5% Organic Acid Anhydride For Coating Auxiliary Agents And Leather Auxiliary Agents

Organic Acid Anhydride for Coating Auxiliary Agents and Leather Auxiliary Agents

Product Description
CIS butenedioic anhydride, also known as maleic anhydride or dehydrated malic anhydride, is
an organic compound. The molecular formula is c4h2o3 and the molecular weight is 98.06. It
is mainly prepared by the oxidation of n-butane or butene in benzene or C4 fraction. The solid
maleic anhydride is white flake live granular crystal, easy to sublimate, soluble in alcohol, etc. with a relative density of 1.48 (20 ºC solid) or 1.30 (70 ºC liquid), and a boiling
point of 202 ºC. It is easy to deliquesce in water to form maleic acid.

Maleic anhydride uses
1.It is mainly used to produce unsaturated polyester resin, alkyd resin, pesticide malathion, high
efficiency and low toxicity pesticide 4049 and long-acting iodamine. It is also a coating, maleic
rosin, polymaleic anhydride, maleic anhydride styrene copolymer. It is also an organic chemical
raw material for the production of ink additives, papermaking additives, plasticizers, tartaric acid,
fumaric acid, tetrahydrofuran, etc. It can be used as curing agent of epoxy resin, and can be used

to manufacture succinic acid, succinic anhydride, etc. in organic synthesis. It is used in the
pharmaceutical industry to manufacture long-acting sulfonamides and other drugs. In the food
industry, it is used to manufacture sour agents, such as malic acid and tartaric acid.
2.Used in organic synthesis, synthetic fiber intermediate. Used as an analytical reagent, such as
a reagent for the determination of organic compounds with conjugated double bonds.
3.It can be used as curing agent for epoxy resin. The reference dosage is 19 ~ 27 parts by mass.
It is not suitable to be used alone because of its high reactivity and volatility. It is mostly mixed
with other anhydride or toughening agent (such as pyromellitic dianhydride). Curing conditions:
160 ~ 200 ºC / (2 ~ 4h). It can also be used to graft with EVA and PE blends to prepare new
polymers of hot melt adhesive and improve adhesion. It can also be used as a modified monomer
for the production of acrylate emulsion and grafting with SBS.

Our services
1.We have over 20 years producing experience, adopt advanced production and inspection
equipment,optimize production process, to guarantee and improve product quality.
2. Provide samples free of charge.
3. Factory price, no middleman increases costs.
4. Packaging can be customized according to customer requirements
5. We provide commercial invoice, packing list, shipping order, COA, health certificate and
certificate oforigin, etc. If your market has any special requirements, please let us know.
6. We can accept various payment methods, such as L / C, T/ T, PayPal,
Western Union,etc
7. Timely delivery. We have good cooperation with many professional freight forwarders.
Once you confirmthe order, we can send the products to you.
Maleic anhydride product package
Packed in lined plastic bags and covered with woven bags, with a net weight of 25kg and 50kg;
It can also be packed in lined plastic bags and external iron barrels or wooden barrels, with a net
weight of 50kg.

Our services
1.We have over 20 years producing experience, adopt advanced production and inspection
equipment,optimize production process, to guarantee and improve product quality.
2. Provide samples free of charge.
3. Factory price, no middleman increases costs.
4. Packaging can be customized according to customer requirements
5. We provide commercial invoice, packing list, shipping order, COA, health certificate and
certificate oforigin, etc. If your market has any special requirements, please let us know.
6. We can accept various payment methods, such as L / C, T / T,  PayPal,
Western Union,etc
7. Timely delivery. We have good cooperation with many professional freight forwarders.
Once you confirmthe order, we can send the products to you.