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Methyl methacrylate (Methyl methacrylate)

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Methyl methacrylate

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2-Propenoic acid, 2-methyl-, methyl ester
2-Propenoicacid, 2-methyl-, methyl ester
Methyl methacrylate

+Expand -Stow

80-62-6

C5H8O2

100.116

3824909990

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Product Description

Polymethyl methacrylate (poly(methylmethacrylate), PMMA for short), also known as acrylic, acrylic (English Acrylic) or plexiglass, Lucite (commodity name), is often called Agari glue in Hong Kong, China. It has the advantages of high transparency, low price, easy mechanical processing, etc. It is a commonly used glass substitute material.

The monomer of polymethyl methacrylate is methyl methacrylate (MMA, acrylic monomer).

Nature Description

Colorless liquid, volatile and flammable. Melting point is-48 ℃, boiling point is 100-101 ℃,24 ℃(4.3kPa), relative density is 0.9440(20/4 ℃), refractive index is 1.4142, Flash Point (Open Cup) is 10 ℃, vapor pressure (℃)5.33kPa. Soluble in ethanol, ether, acetone and other organic solvents, slightly soluble in ethylene glycol and water. It is easy to polymerize in the presence of light, heat, ionizing radiation and catalyst.

0.943

100oC

-48oC

8oC

15.9G/L(20oC)

1.413-1.415

15.9G/L(20oC)

Product Applications

It is mainly used as monomer of organic glass and also used to make other plastics, coatings, etc. Methyl methacrylate is the intermediate of bactericide sclerotinoma.; This product is mainly used as the monomer of polymethyl methacrylate (plexiglass), and it is also co-polymerized with other vinyl monomer to obtain products with different properties, also..

Production method

1. Acetone cyanohydrin route acetone cyanohydrin reacts with sulfuric acid to generate methacrylamide sulfate. After hydrolysis, methyl methacrylate crude product is obtained by transesterification with methanol, and then the finished product is obtained by salting out, crude distillation and distillation. Usually acetone cyanohydrin is made from sodium cyanide. Raw material consumption quota: methyl ketone cyanohydrin 1100 kg/t, sulfuric acid 2100 kg/t, methanol 490 kg/t. 2. Isobutene route Isobutene is oxidized by air in the presence of molybdenum catalyst. Isobutene is oxidized to methacrolein first, and then further oxidized to methacrylic acid. Methyl acrylic acid and methanol are reacted to obtain methyl methacrylate. Recently, another one-step oxidation process has been developed. Isobutene is directly oxidized to methacrylic acid by using N204 as oxidant and k2co 3 or MnO 2 as catalyst. Then, methanol was used for further transesterification. 3. Propylene route propylene, carbon monoxide and methanol undergo carbonylation reaction to generate methyl 2-methoxyisobutyrate, and then decompose into methyl methacrylate and methanol through hydrolysis reaction. 4. Isobutyraldehyde one-step oxidation using heteropolyacid and its salts as catalyst, methacrylic acid is produced by one-step oxidation of isobutyraldehyde, and methacrylic acid is then reacted with methanol to methyl methacrylate.

Security

Dangerous Goods Marking： F

Safety instructions： S24: avoid contact with skin. S37: use appropriate protective gloves. S46: in case of accidental swallowing, seek doctor's advice immediately (display product container or label).

Hazardous material category code： R11: very flammable. R43: skin contact will produce allergic reactions. R37/38: it can stimulate respiratory tract and skin.

Dangerous goods transportation number： UN1247

Storage conditions： The warehouse is ventilated for cryodrying and stored separately from oxidant and acid. It is not suitable for long storage to prevent polymerization.

Packaging grade： II

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Methyl methacrylate (Methyl methacrylate)

Product Description

Nature Description

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Methyl methacrylate (Methyl methacrylate)

Product Description

Nature Description

Product Applications

Production method

Security

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