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Methacrylic acid is colorless crystalline or transparent liquid with pungent odor. Soluble in hot water, soluble in most organic solvents such as ethanol and ether. Easy to polymerize water-soluble polymers. Combustible, in case of high heat and open flame, it is dangerous to burn, and it can produce toxic gas when decomposed by heat.
Used in the manufacture of coatings, insulation material, adhesives and ion exchange resin; Used as organic reagents; Important intermediates of organic chemical raw materials and polymers. The organic glass produced by methyl methacrylate, its most important derivative product, can be used in windows of airplanes and civil buildings, and can also be processed into buttons..
There are two main industrial production methods of methacrylic acid, namely acetone cyanohydrin method is isobutene (tert-butyl alcohol) oxidation method. 1. Acetone cyanohydrin method acetone and hydrocyanic acid react in the presence of alkali catalyst to generate acetone cyanohydrin, then react with concentrated sulfuric acid to generate methacrylamide sulfate, and then methacrylic acid can be generated after hydrolysis. In production, acetone cyanohydrin and sulfuric acid are required to contain no moisture, otherwise acetone or α-hydroxyisobutyrate will be produced and left in the product, which will affect the product quality. Methyl acrylic acid is produced by acetone cyanohydrin method, and sodium cyanide (>87)898kg, acetone (98.5)1100kg and sulfuric acid (smoke) 4080kg are consumed per ton of product. 2. Isobutene (tert-butyl alcohol) oxidation Isobutene is oxidized in two steps, methacrolein is generated in the first step, methacrylic acid is generated in the second step, and then qualified products are obtained through rectification. 3. Methacrylic nitrile hydrolysis method uses isobutene as raw material and is obtained by ammonia oxygen hydrolysis. 4. Methacrolein is prepared by oxidation of isobutane oxidation, and then obtained by oxidation.
S26: in case of contact with eyes, rinse with plenty of water immediately and send it to the doctor for diagnosis and treatment.
S45: If you have an accident or feel uncomfortable, go to the doctor for help immediately (it is better to bring the product container label).
S36/37/39: Wear suitable protective clothing, gloves and use goggles or mask.
R35: it will cause severe burns. R21/22: skin contact and accidental swallowing are harmful.
UN2531
GHS05,GHS06
The warehouse is ventilated cryodrying and stored separately from oxidant and alkali.
P261;P280;P301+P312+P330;P303+P361+P353;P304+P340+P310;P305+P351+P338
II
Danger
H302+H332;H311;H314;H335
Traders: Chemwin
Whatsapp: +86 19117288062
On May 11, 2022, the market price reference price of methyl methacrylate (MMA) in East China was 12650 yuan/ton
On May 12, 2022, the market price reference price of methyl methacrylate (MMA) in East China was 12650 yuan/ton
On May 16, 2022, the market price reference price of methyl methacrylate (MMA) was 12400 yuan/ton
May 17, 2022 methyl methacrylate (MMA) market price reference price in East China is 12350 yuan/ton
On May 18, 2022, the market price reference price of methyl methacrylate (MMA) was 12400 yuan/ton
Market Price Analysis of methyl methacrylate (MMA) on May 19, 2022
On May 20, 2022, the market price reference price of methyl methacrylate (MMA) in East China was 12400 yuan/ton
Market Price Analysis of methyl methacrylate (MMA) on May 23, 2022
On May 24, 2022, the market price reference price of methyl methacrylate (MMA) in East China was 12300 yuan/ton
On May 25, 2022, methyl methacrylate (MMA) the market price reference price in East China was 12300 yuan/ton, while the market price reference price in South China was 13000 yuan/ton
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