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Basic Info.

Model NO.	CAS No. 108-31-6
Colour	White
Application	Coating Auxiliary Agents, Leather Auxiliary Agents
Sample	Free
Delivery Time	Prompt Shipment
Payment Method	T/T, L/C, D/P, D/a, OA etc.
Certification	ISO9001, BV, SGS, Reach, CE
Crystallization Point / ºC	52.5 Min
Mass Fraction of Iron (Calculated by Fe)	≤3
Mass Fraction of Burning Residue /%	≤0.005
Melting Chroma / Hazen Unit	25 Max
Molecular Weight	98.06
Transport Package	25kg 50kg/Bag Bucket
Specification	99.5% min
Trademark	AQ
Origin	China
HS Code	2917140000
Production Capacity	100metric Tons Per Month

Product Description

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

Item	Standard
Product Name	MA ,Maleic Anhydride,2, 5-Furandine,Cis-Butenedioic Anhydrides
Content (w, %)	≥99.5%
CAS NO	108-31-6
EINECS No.	203-571-6
Appearance	White flake active granular crystal
Melting chroma / Hazen unit	≤25
Crystallization point / ºC	≥52.5
Mass fraction of burning residue /%	≤0.005
Mass fraction of iron (calculated by FE)/( μ g/g)	≤3
Molecular Formula	C4H2O3
Application	Coating Auxiliary Agents, Leather Auxiliary Agents etc.

Maleic anhydride uses
1.It is mainly used to produce unsaturated polyester resin, alkyd resin, pesticide malathion, highefficiency and low toxicity pesticide 4049 and long-acting iodamine. It is also a coating, maleicrosin, polymaleic anhydride, maleic anhydride styrene copolymer. It is also an organic chemicalraw 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 usedto manufacture succinic acid, succinic anhydride, etc. in organic synthesis. It is used in thepharmaceutical industry to manufacture long-acting sulfonamides and other drugs. In the foodindustry, 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 asa 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 mixedwith 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 newpolymers of hot melt adhesive and improve adhesion. It can also be used as a modified monomerfor the production of acrylate emulsion and grafting with SBS.
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 netweight of 50kg.
Our services
1.We have over 20 years producing experience, adopt advanced production and inspectionequipment,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 requirements5. We provide commercial invoice, packing list, shipping order, COA, health certificate andcertificate 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, D / A, D / P, O / A, PayPal,Western Union,etc7. Timely delivery. We have good cooperation with many professional freight forwarders.Once you confirmthe order, we can send the products to you.FAQ
Q1: Are you manufacturer?A1:Yes, we are professional manufacturerQ2:Can I get a sample?A2:Surely, few quantity samples can be provided for free, but the courier cost should be paid byyou first,and we will return to you in our first cooperation.Q3:What's your supply capacity?A3:Our supply capacity of purified PMDA is:100 metric tons/month.Q4:What's your delivery time?A4:Usually we will arrange the shipment in 2-3 weeks.