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Methyl Methacrylate

2-Propenoic acid,2-methyl-,methyl ester;Methacrylic acid methyl ester;Methacrylic acid,methyl ester;MMA;Methyl 2-methyl-2-propenoate;Pegalan;Methyl 2-methylacrylate;2-(Methoxycarbonyl)-1-propene;Acryester M;TEB 3K;2-Methyl-2-propenoic acid methyl ester;Light Ester M;NSC 4769;Methyl methacrylate;Acryloid HT 100;Paraloid HT 100;Methyl 2-methacrylate;Three Bond 3057J;Methyl isobutenoate;Acryester MMA;ACR-PA 20;DL 101;Degacryl M 547;Visiomer MMA;Acrifix 1S0116;162221-54-7;211862-43-0;220713-32-6;874217-13-7;1196968-39-4;1227277-87-3;1451188-71-8;1453489-95-6

80-62-6

1247

C5H8O2

InChIKey=VVQNEPGJFQJSBK-UHFFFAOYSA-N

100.116

100.12

618-466-4

3824909990

Alcohols, Phenols, Phenol Alcohols

26.3

0.7355

Colorless liquid

0.9440 g/cm³ @ Temp: 20 °C

-48 °C

100.5 °C @ Press: 760 Torr

8ºC

1.413-1.415

H2O: 15.9 g/L (20 ºC)

Treasury ventilation low temperature drying, and oxidants, acid separate storage, not long storage, to prevent polymerization

Vapour pressure, kPa at 20°C: 3.9

3.45

The acute toxicity of methyl methacrylate is low. Irritation of the skin, eye, and nasal cavity has been observed in rodents and rabbits exposed to relatively high concentrations of methyl methacrylate. The chemical is a mild skin sensitizer in animals. The effect observed most frequently at lowest concentration after repeated inhalation exposure to methyl methacrylate is irritation of the nasal cavity. Effects on the kidney and liver at higher concentrations have also been reported. The lowest reported effect level for inhalation was 410 mg/m3 in rats exposed to methyl methacrylate for 2 years (based upon inflammatory degeneration of the nasal epithelium); the no-observed-effect level (NOEL) in this investigation was approximately 100 mg/m3 . The toxicity of methyl methacrylate to aquatic organisms is low. Although no chronic studies on aquatic organisms were identified, acute tests have been conducted on fish, Daphnia magna, and algae. The most sensitive effect was the onset of inhibition of cell multiplication by the green alga Scenedesmus quadricauda at 37 mg/litre following 8 days of exposure. The lowest reported 24-hour EC50 for immobilization in Daphnia is 720 mg/litre. The 96-hour LC50 in juvenile bluegill sunfish (Lepomis macrochirus) under flowthrough conditions was 191 mg/litre, whereas LC50 values for durations of 1–24 hours ranged from 420 to 356 mg/litre, respectively. The 96-hour LC50 for rainbow trout (Oncorhynchus mykiss) under flow-through conditions was >79 mg/litre, the highest concentration tested. Sublethal/behavioural responses were noted among the fish at 40 mg/litre.

Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.

vol% in air: 1.72.5

Characteristic quality: sulfur-like, sweet, sharp; hedonic tone: unpleasant