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Dimethyl Carbonate

Product Technical Parameters
Product Name Dimethyl carbonate
Other Names DMC
Molecular Formula C3H6O3
Molecular Weight 90.07
Boiling Point 90.3℃
Flash Point (℃) 17℃
Melting Point (℃) 4℃
Refractive Index 1.421
Danger Level class 3.2 dangerous goods
Appearance colorless or light yellow transparent liquid
Quality Standard
DMC Content wt 99.9%min 99.5%min
Methanol Content wt%≤ 0.002 0.02
Moisture wt% ≤ 0.002 0.1
Chrominance (platinum-cobalt) No.≤ 5 10
Density(20℃)g/cm³ 1.071±0.005 1.071±0.005
Acidity % ≤ 0.01 0.02
Packing, Storage and Transportation
Packing in galvanized iron drum or paint drum with net weight of 200±0.5kg, It can also be packed in ISO TANK or according to customer's requirements. As DMC is a flammable liquid, it is not allowed to use plastic materials or packaging containers containing plastic ingredients, in case of naked fire caused by static electricity in the process of shipment, which may cause combustion or even explosion.
Usage

Dimethyl carbonate is insoluble in water, but can be mixed with alcohol, ether, ketone and almost all organic solvents. DMC, with low toxicity, was listed as a non-toxic product in Europe in 1992. It is an environment-friendly chemical material in line with the requirements of modern "clean technology".

Dimethyl carbonate (DMC) is an important organic chemical intermediate. Because its molecular structure contains carbonyl, methyl, methoxide and carbonyl methoxide, it can be widely used in organic synthesis reactions such as carbonylation, methylation, methoxylation and carbonyl methylation. It used in the production of polycarbonate, isocyanate, polyurethane, polycarbonate glycol, allyl diethylene glycol carbonate, methyl amino formic acid naphthalene ester (carbaryl), benzene methyl ether ammonium, four methyl alcohol, long chain alkyl carbonate, carbon hydrazide, malonic ester, propylene urethane, diethyl carbonate, three phosgene, furazolidone, hydrazine methyl formate, aniline methyl formate and other chemical products.

1、Instead of phosgene to synthesize polycarbonate

2、As a non-toxic or low-toxic solvent, alternative to the traditional toxic solvents such as toluene, xylene, acetone, butanone, ethyl acetate, butyl acetate, etc., DMC used in the paint (nitro paint, furniture paint, automotive paint) and adhesive industry.

3、In the field of pesticides, DMC is mainly used to produce methyl isocyanate and then some carbamate pesticides. The varieties of pesticides that can be produced include: carbaryl, baylor, carbaryl, budweiser, methadol, etc.

4、In the part of medicine, it is mainly used to synthesize anti-infective drugs, antipyretic and analgesic drugs, vitamin drugs and drugs for the central nervous system. DMC is mainly used for the synthesis of ciprofloxacin, norfloxacin (norfloxacin), piperic acid, ciprofloxacin lactate and other raw materials, mainly used as methylation agent.

5、Replacing MTBE as gasoline additive to improve octane value of gasoline (this use is mainly in China)

6、Lithium battery electrolyte
Lithium battery electrolyte is mainly composed of organic solvents, such as propylene carbonate, (vinyl carbonate), (diethyl carbonate), (ethyl methyl carbonate).

7、Developer
Tetramethyl alcohol amine can be produced by dimethyl carbonate. P type photoresist developer which is widely used as photoresist developer in large scale advanced integrated circuit lithography.

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