2-Hydroxyethyl methacrylate(HEMA)
| English Name |
2-Hydroxyethyl methacrylate |
| Alias | 2-Hydroxyethyl methacrylate, 2-HYDROXYETHYL METHACRYLATE (2-HEMA) |
| 2-hydroxyethyl 2-methylprop-2-enoate,ETHYLENEGLYCOL METHACRYLATE (HEMA) | |
| ethylene glycol monomethacrylate, BisoMer SR, METHACRYLIC ACID 2-HYDROXYETHYL ESTER GE 610,ETHYLENE GLYCOL METHACRYLATE | |
| 2-HYDROXYETHL METHACRYLATE, hydroxy ethyl methacrylate | |
| EINECS 212-782-2,2-HYDROXYETHYLMETHACRYLATE, HYDROXYETHYL METHACRYLATE, GMA, methanol,methyl methacrylate | |
| CAS No. | 868-77-9 |
| Molecular formula | C6H10O3 |
| Molecular weight | 130.14 |
| Sructural formula | |
| EINECS number | 212-782-2 |
| MDL No. | MFCD00002863 |
Melting point -12 °C
Boiling point 67 °C3.5 mm Hg(lit.)
Density 1.073 g/mL at 25 °C(lit.)
Vapor density 5 (vs air)
Vapor pressure 0.01 mm Hg (25 °C)
Refractive index n20/D 1.453(lit.)
Flash point 207 °F
Storage conditions 2-8°C
Solubility Chloroform, Methanol (Slightly)
Acidity coefficient (pKa)13.83±0.10(Predicted)
Liquid form
Color Clear
The Odor Ester like that
Water soluble
Air Sensitive Air sensitive
Unstable - may polymerize in the absence of stabilizer. May be stabilized with, or contain. Unstable - May polymerize in the absence of stabilizer. May be stabilized with, or containsmall amounts of, diethylene glycol monomethacrylate, di(ethylene glycol)dimethacrylate, methacrylic acid. Incompatible with strong oxidizing agents, free radical initiators, peroxides, steel. Closed containers may explode if heated due to runaway polymer
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LogP: 0.42 at 25℃
GHS hazard pictograms
GHS07
Warning word
Hazard Description H315-H317-H319
Precautions P261-P264-P272-P280-P302+P352-P305+P351+P338
Dangerous Goods Mark Xi
Hazard category code 36/38-43-36/37/38
Safety information 26-36/37-28A-28
WGK Germany1
RTECS number OZ4725000
TSCAYes
LD50 orally in Rabbit: 5050 mg/kg LD50 dermal Rabbit > 3000 mg/kg
Store in a cool, ventilated warehouse. Keep away from fire and heat. Store away from light. The temperature of the reservoir should not exceed 30℃. Keep the container sealed and do not contact with air. It should be stored separately from oxidants, acids and bases, and should not be mixed.
Packed in 200Kg /drum,or packed according to customer needs.
Hydroxyethyl methacrylate is widely used in the manufacture of active groups of hydroxyethyl acrylic resin, coatings, and can also be used in the manufacture of two-component coatings and oil industry as additives for lubricating oil washing.
