Methyl methacrylate
Methyl methacrylate
CAS: 80-62-6
Molecular Formula: C5H8O2
Methyl methacrylate - Names and Identifiers
| Name | Methyl methacrylate |
| Synonyms | MMA METHYL METACRYLATE Methyl methacrylate Methyl Methyl Acrylate Methacrylic acid methyl ester 2-Methylacrylic acid methyl ester |
| CAS | 80-62-6 |
| EINECS | 201-297-1 |
| InChI | InChI=1/C5H8O2/c1-4(2)5(6)7-3/h1H2,2-3H3 |
Methyl methacrylate - Physico-chemical Properties
| Molecular Formula | C5H8O2 |
| Molar Mass | 100.12 |
| Density | 0.943 |
| Melting Point | -48℃ |
| Boling Point | 100℃ |
| Flash Point | 8℃ |
| Water Solubility | 15.9 g/L (20℃) |
| Refractive Index | 1.413 |
| Physical and Chemical Properties | Characteristics of colorless liquid, volatile. melting point -48 ℃ boiling point 100~101 ℃ relative density 0.9440 refractive index 1.4142 flash point 10 ℃ solubility, ether, acetone and other organic solvents. Slightly soluble in ethylene glycol and water. |
| Use | It is mainly used as a monomer of organic glass, and is also used to make other plastics, coatings, etc. |
Methyl methacrylate - Risk and Safety
| Hazard Symbols | F - Flammable Xi - Irritant  |
| Risk Codes | R11 - Highly Flammable R37/38 - Irritating to respiratory system and skin. R43 - May cause sensitization by skin contact |
| Safety Description | S24 - Avoid contact with skin. S37 - Wear suitable gloves. S46 - If swallowed, seek medical advice immediately and show this container or label. |
| UN IDs | UN 1247 |
Methyl methacrylate - Upstream Downstream Industry
| Raw Materials | Acetone cyanohydrin Methyl alcohol Methyl alcohol Sulfuric acid Sulfuric acid Sodium cyanide Sodium cyanide |
Methyl methacrylate - Nature
Open Data Verified Data
colorless liquid, volatile, flammable. The relative density was 0.9440. Melting Point -48 °c. Boiling point 100~101 deg C. Flash point (Open Cup) 10 °c. Refractive index 4142. Vapor pressure (25.5 C) 5.33kPa. Soluble in ethanol, ether, acetone and other organic solvents. Slightly soluble in ethylene glycol and water. Polymerization is facilitated in the presence of light, heat, ionizing radiation and catalysts.
Last Update：2025-06-10 22:55:16
Methyl methacrylate - Preparation Method
Open Data Verified Data
- acetone cyanohydrin route acetone cyanohydrin reacts with sulfuric acid to generate methacrylamide sulfate, which is hydrolyzed and then esterified with methanol to obtain methyl methacrylate crude product, which is then subjected to salting-out, crude distillation and rectification to obtain finished product. Acetone cyanohydrin is usually prepared from sodium cyanide.
- isobutylene route isobutylene is two-stage oxidized with air in the presence of a molybdenum catalyst. Isobutene is first oxidized to methacrolein and then further oxidized to methacrylic acid. Methyl methacrylate was obtained by esterification of methacrylic acid with methanol. Recently, a one-step oxidation process has been developed. Isobutene was directly oxidized to methacrylic acid with N2 04 as oxidant and K2 C03 or Mr102 as catalyst. This was then esterified with methanol.
- propylene route propylene, carbon monoxide and methanol are subjected to carbonylation reaction to generate 2 methoxy isobutyric acid methyl ester, and then decomposed into methyl methacrylate and methanol by hydrolysis reaction.
- one-step oxidation of isobutyraldehyde using Heteropoly acid and its salts as catalyst, one-step oxidation of isobutyraldehyde to produce methacrylic acid, methacrylic acid and methanol esterification into methyl methacrylate.
Last Update：2022-01-01 10:32:59
Methyl methacrylate - Application
Open Data Verified Data
The monomer of organic glass is also used in the manufacture of other resins, plastics, coatings, adhesives, lubricants, Wood wetting agents, motor coil penetration agents, paper glazing agents, printing and dyeing aids and insulation infusion materials.
Last Update：2025-08-19 16:24:40
Methyl methacrylate - Safety
Open Data Verified Data
- This product is less toxic. The oral LD50 in rats was 9400mg/kg. The inhalation lethal concentration is lc5015.33 g/m3, and the maximum allowable concentration is 410mg/m3. But its olfactory threshold is 130 ~ 250mg/m3, when its concentration has not yet reached before the production of toxicity, its strong odor has been intolerable. Human skin contact with methyl methacrylate, only a very small number of people will appear red rash. As the raw material of methyl methacrylate and the intermediate hydrogen cyanide are highly toxic, the production unit must strictly ensure that the equipment is sealed and well ventilated. The operator should be strictly Protection Measure and equipped with necessary protective equipment. Found that the phenomenon of poisoning should be immediately moved to fresh air and timely rescue.
- zinc-coated iron drum or aluminum drum packaging. Size 16 0kg. Store in a cool and ventilated special warehouse, away from fire and heat source, and avoid direct sunlight.
Last Update：2022-01-01 10:32:59
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View History
Methyl methacrylate
癸二酰胺
RM-1 小鼠前列腺癌细胞系
zinc dihydrate
(±)-2-丁醇
硝酸鋇
587-26-8
偏钒酸银
iron trichloride
Aluminum trichloride test solution(ChP)
癸二酰胺
RM-1 小鼠前列腺癌细胞系
zinc dihydrate
(±)-2-丁醇
硝酸鋇
587-26-8
偏钒酸银
iron trichloride
Aluminum trichloride test solution(ChP)
Raw Materials for Methyl methacrylate