Item

Details

Appearance

Clear transparent liquid

Purity ≥

98.5%

Water ≤

0.2%

Color ≤(Pt-Co)

20

Acidity ≤(As MAA)

0.1%

Inhibitor (ppm)

180-220

Refractive Index (nD20)

1.4510-1.4540

Tg (°C)

55

Name

2-Hydroxyethyl   methacrylate

CAS NO.

868-77-9

EINECS   NO.

212-782-2

Synonyms

Glycol methacrylate; 2-Hydroxyethyl methycrylate;   Ethylene glycol monomethacrylate; Methacrylic acid 2-hydroxyethyl ester;   2-Propenoic acid, 2-methyl-, 2-hydroxyethyl ester; beta-Hydroxyethyl   Methacrylate; BISOMER HEMA; Ethylene glycol methacrylate; GMA; heme-a;   Mhoromer; S-(2-HYDROXYETHYL)MERCAPTURIC ACID;   N-ACETYL-S-(2-HYDROXYETHYL)-L-CYSTEINE; S-(2-Hydroxyethyl)mercapturic Acid,   HEMA; R-(2-Hydroxyethyl)mercapturic Acid, HEMA; HEMA

MF

C6H10O3

mp

-12 °C

bp

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.)

Fp

207 °F

storage temp.

2-8°C

Water Solubility

soluble

Sensitive  

Air Sensitive

Stability:

Unstable - may polymerize in the absence of stabilizer.   May be stabilized with, or contain small 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