Is methyl methacrylate (MMA CAS 80-62-6) soluble in water?

Methyl methacrylate (MMA), with the chemical formula C5H8O2 and a molecular weight of 100.12, is a colorless liquid with various physicochemical properties. It is commonly used in the manufacture of synthetic polymers, plastics, resins, coatings, adhesives, etc., and is also an important chemical intermediate.

Physical Properties of Methyl Methacrylate

• Appearance: Colorless liquid, volatile, with a strong pungent odor
• Density: Approximately 0.943 g/cm³
• Melting point: -48°C
• Boiling point: 100–101°C
• Refractive index: Approximately 1.442
• Autoignition temperature: 421°C
• Solubility: Sparingly soluble in water, but readily soluble in ethanol and most organic solvents

methyl methacrylate solubility

MMA can be dissolved in many organic solvents, such as ethyl acetate, dimethylformamide, and dichloromethane. However, compared to organic solvents, methyl methacrylate's solubility in water is much worse. The miscibility of methyl methacrylate (MMA) with water is very limited, generally only slightly soluble or even insoluble, and this miscibility decreases with decreasing temperature and increasing water content. This is because the methyl methacrylate molecule contains a highly hydrophobic methyl group.

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