Time of issue:2021-01-05 11:32:40

Polyoxymethylene dimethyl ethers (PODEn or DMMn) are a class of chemical compounds with the molecular formula CH3O(CH2O)nCH3 where n is typically about 3 to 8.PODEn, which can be obtained from methanol in a process chain,has the advantages of extremely low sulfur content and zero arene content.DMM3-8 is recognized as a new diesel additive component, which can greatly improve the combustion efficiency of diesel and reduce the emission of pollutants. At the same time when n=2-5,DMMn is a new aromatic free green solvent. Therefore, as environmental protection plays an increasingly important role in development, the development of clean energy DMMn products has been widely concerned by scholars.

Sichuan Xinda adopts the innovative and high technology with independent intellectual property rights which has been developed successfully by Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences for many years.It invested more than 700 million RMB to build the world's first "Annual Output of 50,000 tons of Polyoxymethylene Dimethyl Ethers" industrialization demonstration plant.

By now,we have three types DMMn product, DMM2(XD-S100) and DMM3-5(XD-S240) and DMM3-8(XD-S320).In future,we will introduce more DMMn product to the market soon,such as DMM3 and DMM4-5 etc.


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CAS.NO 109-87-5 Chemical Formula CH3OCH2OCH3
Boiling Point 
Specification Q/XD1003-2016 Molecular Weight 76.09
Flash Point 
(Closed Cup)


Typical Physical Properties:
Property Value
Appearance & Odor:
Colorless and transparent liquid 
with slight ether odor
Purity(wt%): ≥99.5
Chromatic Value (Hazen Pt-Co): 5
Liquid Density,20℃(g/cm3): 0.86
Viscosity,(25℃)/mPa·s: 0.4-0.8
Acidity(KOH)(mg/100ml): ≤7
Methanol(wt%): ≤0.5
Water Content (wt%): ≤0.05
Solubility,16℃(%): 32


Package & Storage: Transportation Hazardous Characteristics
Available in air-tight stainless steel/metal drums or storage tanks with at least 5% interspace. Keep at not lower than -30℃. Keep away from open fires, high temperatures and heat sources. Refer to the transportation provisions for hazardous chemicals.
It will form an explosive mixture when mixed with air and the fire will emit acrid smoke.


It is mainly used in the production of anion exchange resin and also as solvent and special fuel. Its dissolving capacity is better than diethyl ether and acetone.Its azeotropic mixture with methanol can dissolve nitrocellulose with high nitrogen content.And it is used for perfumery,synthetic resin and reaction medium of Grignard reaction and Repa(synthetic) reaction.


24 months.


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