China Factory Supplier Cis-Butenedioic Anhydrides Ma Maleic Anhydride CAS No. 108-31-6

• CAS No.: 108-31-6
• Formula: C4H2O3
• EINECS: 203-571-6
• Type: Synthesis Material Intermediates
• Appearance: Crystal
• Quality: Industrial
• Model NO.: 108-31-6
• Colour: White
• Transport Package: 25kg 50kg/Bag Bucket
• Specification: 99.5% min
• Origin: China
• HS Code: 2917140000
• Production Capacity: 1000metric Tons Per Month

Product Description

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, ether
and acetone, 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.

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, 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.
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

Inner Mongolia Gangmao Chemical Co., Ltd. that is one professional enterprise focusing in manufacturing calcium carbide,paraffin wax,caustic soda,pvc Fesi,Mnfe and some other chemicals as well as institutions in charge of international trade.In Beijing,Shanghai, Guangdong and Shandong,it has sales service institutions.
The company's products are widely used in environmental protection(steel plant desulfurization and deoxidization)metallurgy(metal welding and cutting),chemical industry(fluorine chemical industry and other fine chemical products)and other fields,and the quality of products is guaranteed and the price is excellent.

1. Mixed container, we can mix different items in one container.
2. Quality control, before shipment, free sample for test. after shipment, keep sample for 3 years.  
3. Prompt shipment with professional documents
4. Packing as your request, with photo before shipment

FAQ

Q. who are we?
A. We are experienced manufacturer. For customer's convenience ,we provide one-stop purchase service for our customers ,We have professional inspection team,strong logistics team and engineering technical team who can control the quality strictly,transportation cargo on time and solve loading port problems efficiently.

Q. how can we guarantee quality?
A. Always a pre-production sample before mass production;
    Always final Inspection before shipment;

Q.what can you buy from us?
A. SLES,Calcium Carbide,Paraffin wax,Borax,Borica Acid,Titanium Dioxide,PVC SG-5,Pentaerythritol,Sodium Hydroxide,Barium Sulfate, etc

If you want to find a Cis-butenedioic anhydride manufacturer in China,Inner Mongolia Gangmao Chemical Co., Ltd. will be your best Choice