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Home > Encyclopedia > Methyl Methacrylate

Methyl Methacrylate

pharmaceutical raw materials
Methyl Methacrylate structure

Methyl Methacrylate 

structure
  • CAS No:

    80-62-6

  • Formula:

    C5H8O2

  • Chemical Name:

    Methyl Methacrylate

  • Synonyms:

    2-Propenoic acid,2-methyl-,methyl ester;Methacrylic acid methyl ester;Methacrylic acid,methyl ester;MMA;Methyl 2-methyl-2-propenoate;Pegalan;Methyl 2-methylacrylate;2-(Methoxycarbonyl)-1-propene;Acryester M;TEB 3K;2-Methyl-2-propenoic acid methyl ester;Light Ester M;NSC 4769;Methyl methacrylate;Acryloid HT 100;Paraloid HT 100;Methyl 2-methacrylate;Three Bond 3057J;Methyl isobutenoate;Acryester MMA;ACR-PA 20;DL 101;Degacryl M 547;Visiomer MMA;Acrifix 1S0116;162221-54-7;211862-43-0;220713-32-6;874217-13-7;1196968-39-4;1227277-87-3;1451188-71-8;1453489-95-6

  • Categories:

    Cosmetic Ingredient  >  Opacifying

Description

Methyl 2-methyl-2-propenoate has an acrid, penetrating odor. In another report this compound is reported to possess a sharp, fruity odor Methyl methacrylate is a methyl ester of methacrylic acid. It is a colourless, volatile liquid with an acrid fruity odour. It has a relatively high vapour pressure (4 kPa at 20°C), moderate water solubility (15.8 g/litre), and a low log octanol/water partition coefficient (Kow = 1.38) . Methyl methacrylate is typically 99.9% pure and contains small amounts of

Methyl Methacrylate Basic Attributes

100.116

100.12

618-466-4

3824909990

Characteristics

26.3

0.7355

Colorless liquid

0.9440 g/cm3 @ Temp: 20 °C

-48 °C

100.5 °C @ Press: 760 Torr

8ºC

1.413-1.415

H2O: 15.9 g/L (20 ºC)

Treasury ventilation low temperature drying, and oxidants, acid separate storage, not long storage, to prevent polymerization

Vapour pressure, kPa at 20°C: 3.9

3.45

The acute toxicity of methyl methacrylate is low. Irritation of the skin, eye, and nasal cavity has been observed in rodents and rabbits exposed to relatively high concentrations of methyl methacrylate. The chemical is a mild skin sensitizer in animals. The effect observed most frequently at lowest concentration after repeated inhalation exposure to methyl methacrylate is irritation of the nasal cavity. Effects on the kidney and liver at higher concentrations have also been reported. The lowest reported effect level for inhalation was 410 mg/m3 in rats exposed to methyl methacrylate for 2 years (based upon inflammatory degeneration of the nasal epithelium); the no-observed-effect level (NOEL) in this investigation was approximately 100 mg/m3 . The toxicity of methyl methacrylate to aquatic organisms is low. Although no chronic studies on aquatic organisms were identified, acute tests have been conducted on fish, Daphnia magna, and algae. The most sensitive effect was the onset of inhibition of cell multiplication by the green alga Scenedesmus quadricauda at 37 mg/litre following 8 days of exposure. The lowest reported 24-hour EC50 for immobilization in Daphnia is 720 mg/litre. The 96-hour LC50 in juvenile bluegill sunfish (Lepomis macrochirus) under flowthrough conditions was 191 mg/litre, whereas LC50 values for durations of 1–24 hours ranged from 420 to 356 mg/litre, respectively. The 96-hour LC50 for rainbow trout (Oncorhynchus mykiss) under flow-through conditions was >79 mg/litre, the highest concentration tested. Sublethal/behavioural responses were noted among the fish at 40 mg/litre.

Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.

vol% in air: 1.72.5

Characteristic quality: sulfur-like, sweet, sharp; hedonic tone: unpleasant

Safety Information

II

3

UN 1247

1

R11; R37/38; R43

S24-S37-S46

OZ5075000

F

Fireproof. Separated from strong oxidants, strong bases and strong acids. Cool. Keep in the dark. Keep in a well-ventilated room. Store only if stabilized.

P210-P260-P280-P301 + P310-P311

H225-H301 + H311 + H331-H370

Methyl Methacrylate Use and Manufacturing

Methods of Manufacturing

1. Acetone cyanohydrin acetone and hydrogen cyanide reaction generated acetone cyanohydrin, acetone cyanohydrin and sulfuric acid and methanol reaction, in the preparation of methyl methacrylate, the crude ester by salting out, initial distillation, distillation products.
2. Propylene propylene, carbon monoxide and methanol reaction, the synthesis of intermediate 2 - methoxy - 2 - methyl propionate methyl ester, it decomposes to produce methyl methacrylate and methanol.
3. Isobutylene Process isobutylene is oxidized to methacrylic acid in the presence of a K2CO3 or MnO2 catalyst with an oxidizing agent or oxidized in two parts in the presence of a molybdenum catalyst, i.e., preoxidized to methacrolein, further oxidized to methacrylic acid, which And then esterified with methanol to produce methyl methacrylate.
4. Propyne Carbonylation Shell has developed a new process for the synthesis of MMA for propynylation in recent years and has been industrialized. It is said that the law is simpler and less costly than the process currently being produced or being developed.
5. Ethylene The process is the carbonylation or hydroformylation of ethylene to form C3 carbonyl compounds, and then with formaldehyde or equivalent compounds condensed into methyl methacrylate. The main advantage of this process is that the resulting hydrocyanic acid by-product can be recycled as a starting material for the preparation of ACH and does not produce ammonium sulfate products.
6. Method: In the reaction flask equipped with a stirrer, reflux condenser, temperature base, dropping funnel, 75 g of trimethylphenol phosphate, 9 g of phosphorus pentoxide and 0.2 g of copper powder were added. The oil bath was heated to 65 ° C with stirring, and methyl 2-hydroxyisobutyrate was slowly added dropwise
(1) 25 g (0.2 mol), and the reaction temperature was not more than 65 ° C. After the addition, the temperature is raised to 80 to 100 ° C, and the temperature is maintained for 3 hours, and the distillation apparatus is distilled to distill the fraction below 170 ° C. The distillate was washed with 10% sodium carbonate solution, dried over anhydrous sodium phosphate, and a small amount of copper powder was added. The distillate was collected and the fraction of 97 to 100 ° C was collected to obtain methyl methacrylate
(2) 16 to 18 g. Yield 76% to 88%. Note:
1, the purpose of adding copper powder is methyl methacrylate polymerization, can also add a small amount of sulfur or diphenylamine.
2, can also be acetone, sodium cyanide and methanol as raw materials to synthesis of methyl methacrylate.

Uses

Methyl methacrylate (MMA) is an organic compound with the formula CH2=C(CH3)COOCH3. This colourless liquid, the methyl ester of methacrylic acid (MAA) is a monomer produced on a large scale for the production of poly(methyl methacrylate) (PMMA).

Computed Properties

Molecular Weight:100.12
XLogP3:1.4
Hydrogen Bond Acceptor Count:2
Rotatable Bond Count:2
Exact Mass:100.052429494
Monoisotopic Mass:100.052429494
Topological Polar Surface Area:26.3
Heavy Atom Count:7
Complexity:94.3
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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Price Analysis

Make your Methyl Methacrylate purchase based on the price and market insights! ECHEMI provides professional market insights with prices for you to make a better choice. Learn more on Methyl Methacrylate prices .
  • Data: 2026-07-17
  • Price: 10381.25Yuan/mt
  • Change: 18.75

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