Methacrylate Monomers

Typical Properties – Methacrylate Esters

CH2

Methacrylate Esters CH2 = C – COOR

Methyl Methacrylate

R = CH3

Ethyl Methacrylate

R = C2H5

n-Butyl Methacrylate

R = (CH2)3CH3

Isobutyl Methacrylate

R = CH2CHCH3

CH3

2-Ethylhexyl Methacrylate

R = CH2CH(CH2)3CH3

C2H5

Methacrylic Acid

R = H

Molecular Weight

100.2

114.14

142.20

142.20

198.31

86.09

Boiling Point at 101 kPa (760 mm), °C(°F)

101(214)

117(243)

163(325)

155(311)

110†(230†)

161(322) Freezing Point, °C (°F)

-48 (-54)

< -50 (< -58)

< -50 (< -58)

-34(-29)

< -50(< -58)

16(61)

Specific Gravity, 15.6 °C

0.950

0.918

0.899

0.889

0.888

1.020

Density, at 15.6°C (60°F) kg / m3 lb / gal

948.8 7.92

916.5 7.65

897.3 7.49

887.7 7.41

886.5 7.40

1020.7 8.52 (17°C)

Refractive Index, nD

15.6

1.417

1.414

1.426

1.422

1.436(nD25)

1.428(nD

25) Viscosity, mPa•s (cP) at 25°C (77°F)

0.5

0.9

1.3

1.2

2.4

1.9 Water solubility, g/100g Monomer in water, 20°C(68°F)/30°C(86°F) Water in monomer, 20°C(68°F)/30°C(86°F)

1.6a / 1.5a

1.2a/1.3a

0.5/0.6

0.8/0.9

<0.1/0.2

0.4/0.5

0.1/0.3

0.4/0.5

<0.1/0.2

0.3/0.3

∞/∞

∞/∞ Flash point, °C (°F) Tag closed cup Tag open cup

11(51) 13(55)

21(70) 29(85)

50(122) 54(130)

44(111) 46(115)

94(202) >79(>175)

68(154) 71(160)

Vapor Pressure at 38°C (100°F), kPa psia †2.3 kPa (17mm)

9.65 1.4

0.69 0.1

0.69 0.1

0.69 0.1

0.01 0.002

0.41 0.06

Explosive limits - 25°C(77°F) And 101 kPa (760mm) % by vol in aira Lower Upper

1.8 8.5

1.8 saturation

2.0 8.0

- -

- -

- -

Latent heat of vaporization (calc), kJ/mole kcal/mole

36.0±1.7 8.6±0.4

40.0±2.1 9.5±0.5

- -

- -

- -

- -

Heat of polymerization kJ/mole (kcal/mole)

57.7(13.8)

57.7(13.8)

59.4(14.2)

59.8(14.3)

59.1(14.0)

66.1(15.8) Specific heat, (20°-30°C)a

kJ/kg•K / cal/g•°C

1.88 / 0.45

1.88 / 0.45

1.55 / 0.37

- / -

- / -

- / - Odor thresholdd detectability (ppm)

0.75

0.17

0.06

0.069

0.76

-

a E.H. Riddle, “monomeric Acrylic Esters,” Reinhold, 1954 b “Encylopedia of Polymer Science and Technology,” 1st ed., Vol.1, Interscience, 1964. c Kirk-Othmer “Enclycopedia of Chemical Technology,” 2nd ed., Vol. 13, Interscience, 1967. d Determined by odor panel test methodology.

Lucite Methacrylate Monomers – U.S. Grades and Specifications

Shipping Specifications

U.S. Standard Grades*

Inhibitor**

Ester

Named % min

Acid as

Methacrylic % max

Water % max

Color as Shipped

APHA max

Code

Type

PPM

Methyl Methacrylate

99.9

0.003

0.03

8

M-100† M-105 M-112 M- 115 M-124 M-130 M-205 M-212 M-224 M-253 M- 307 M-324 M- 502

HQ HQ HQ HQ HQ

MEHQ MEHQ MEHQ MEHQ

*** *** ***

8-12 22-28 27-30 45-55 50-70 8-12 22-28 45-55

90-110 12-17 30-45 19-25

Ethyl Methacrylate

99.0

0.0025

0.05

8

E-112 E-207

HQ MEHQ

22-28 15-20

n-Butyl Methacrylate

99.2

0.0025

0.05

8

N-112 N-153 N-205 N-212

HQ HQ

MEHQ MEHQ

22-28 90-110

8-12 22-28

Isobutyl Methacrylate

99.0

0.0025

0.03

8

I-205 I-212 I-224

MEHQ MEHQ MEHQ

8-12 22-28 45-55

2-Ethylhexyl Methacrylate

98.0

0.05

0.05

8

H-224

MEHQ

45-55

Methacrylic acid, glacial

-

99.5 min

0.03

10

A-102

MEHQ

225-275

*Other inhibitors and levels available upon request

**HQ=hydroquinone, MEHQ=methyl ether of HQ (paramethoxyphenol)

***2,4-Dimethyl-6-t-butylphenol † Methyl Methacrylate monomer M-100 is a special uninhibited grade which is precooled and shipped only in insulated tank trailers (40,000 lb min) or tank cars (150,000 lb min).

†† Shelf life of chemically inhibited grades in drums is 12 months from date of manufacture and/or drummed, when stored with air in drum head space at 25o C or less. Example drum lot code for 09/15/04 = F09154. 2nd example: -091504- . Glacial Methacrylic Acid must be stored above 16o C to prevent freezing. Consult MSDS and appropriate Storage and Handling booklet available from Lucite International, Inc. for detailed information.

7275 Goodlett Farms Parkway

Cordova, TN 38016 1-800-458-2483

MONO-002 05/05 Printed in U.S.A.