Methyl methacrylate
Synonyms
2-Propenoic acid, 2-methyl-, methyl ester;
Methacrylic acid, methyl ester;
Category
Non-ionic surfactant
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Chemical Numbering System
CAS: 80-62-6
EINECS: 201-297-1
Molecular Formula & Molecular Weight
Molecular Formula: C5H8O2
Molecular Weight: 100.12
Structure
Properties
Appearance (1), colorless liquid.
Odor unpleasant odor.
Solubility soluble in water. Soluble in ethanol.
Physical - chemical properties
|
Water solubility, g/L |
15.7 (20°C)[1] |
Stability stable. Under strong acid or strong alkali condition, easily hydrolyzed. Easily oxidized.
Risk Liquid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
cat subcutaneous LDLo |
7mL/kg[2] |
|
dog inhalation LCLo |
41200mg/m3/3H[2] |
|
dog oral LD50 |
4725mg/kg[2] |
|
dog intravenous LDLo |
0.12mL/kg[2] |
|
guinea pig intraperitoneal LD50 |
1890mg/kg[2] |
|
guinea pig oral LD50 |
5954mg/kg[2] |
|
guinea pig subcutaneous LD50 |
5954mg/kg[2] |
|
mouse inhalation LC50 |
18500mg/m3/2H[2] |
|
mouse intraperitoneal LD50 |
945mg/kg[2] |
|
mouse oral LD50 |
3625mg/kg[2] |
|
mouse subcutaneous LD50 |
5954mg/kg[2] |
|
rabbit inhalation LCLo |
17500mg/m3/4H[2] |
|
rabbit oral LD50 |
8700mg/kg[2] |
|
rabbit skin LD50 |
> 5000mg/kg[2] |
|
rabbit subcutaneous LDLo |
14mL/kg[2] |
|
rat inhalation LC50 |
78000mg/m3/4H[2] |
|
rat intraperitoneal LD50 |
1328mg/kg[2] |
|
rat oral LD50 |
7872mg/kg[2] |
|
rat subcutaneous LD50 |
7088mg/kg[2] |
Reproductive effect[2].
Human Toxicity
Table 2 Human toxicity values
|
human inhalation TCLo |
125ppm[2] |
|
human inhalation TCLo |
60mg/m3[2] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent film-forming, dispersing abilities. Volatile.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Liquid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Liquid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
|
As, mg/kg, ≤ |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Product standards
(1), Chinese standards
(1a), HG/T 2305 Methyl methacrylate for industrial use
4, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.
Major Uses
1, Typical applications
Use as monomer.
Use as film-forming agent.
2, Personal care products
Film-forming agent in personal care products.
Manufacturers
References
[1]: HSDB. 80-62-6, Methyl methacrylate
[2]: ChemIDplus. 80-62-6, Methyl methacrylate
Update: 20141029(1); 20200524(2);