Pharmaceutical Raw Material CAS No. 108-31-6 Maleic Anhydride /Ma/Cis-Butenedioic Anhydrides /Dehydrated Malic Anhydride

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
1000metric Tons Per Month
Reference Price
$ 0.41 - 0.77
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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.
Pharmaceutical Raw Material CAS No. 108-31-6 Maleic Anhydride/Ma/Cis-Butenedioic Anhydrides/Dehydrated Malic Anhydride 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.
Pharmaceutical Raw Material CAS No. 108-31-6 Maleic Anhydride/Ma/Cis-Butenedioic Anhydrides/Dehydrated Malic Anhydride 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, D / A, D / P, O / A, 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. Pharmaceutical Raw Material CAS No. 108-31-6 Maleic Anhydride/Ma/Cis-Butenedioic Anhydrides/Dehydrated Malic Anhydride Pharmaceutical Raw Material CAS No. 108-31-6 Maleic Anhydride/Ma/Cis-Butenedioic Anhydrides/Dehydrated Malic Anhydride FAQ
Q1: Are you manufacturer?
A1:Yes, we are professional manufacturer

Q2: Can I get a sample?
A2:Surely, few quantity samples can be provided for free, but the courier cost should be paid by
you first,and we will return to you in our first cooperation.

Q3: What's your supply capacity?
A3:Our supply capacity  is 1000 metric tons/month.

Q4: What's your delivery time?
A4:Usually we will arrange the shipment in 2-3 weeks.

 

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