METHYL ACETATE
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Category：Paint chemicals Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
Colorless transparent liquid with fruity aroma.
Boiling point 57 degrees Celsius.
Melting point -98.05 degree C.
Density 0.93. Density 0.93. flammable, low toxicity.
Methyl acetate is used to replace acetone, butanone, ethyl acetate, cyclopentane, etc. Because of its low toxicity, it can meet the environmental standards of coatings, inks, resins and adhesives.
Methyl Acetate: Overview and Key Properties
| Category | Details |
|---|---|
| Chemical Name | Methyl acetate (MeOAc) |
| Molecular Formula | C₃H₆O₂ |
| CAS Number | 79-20-9 |
| Appearance | Colorless liquid |
| Odor | Fruity, pleasant (similar to acetone) |
Physical & Chemical Properties
| Property | Value/Description |
|---|---|
| Boiling Point | 57–58°C (135–136°F) |
| Melting Point | −98°C (−144°F) |
| Density | 0.932 g/cm³ (20°C) |
| Solubility | Miscible with most organic solvents (ethanol, ether); partially soluble in water |
| Flash Point | −10°C (14°F) – Highly flammable |
| Vapor Pressure | 173 mmHg (20°C) |
Production Methods
| Method | Process Description |
|---|---|
| Esterification | Methanol + Acetic acid (with acid catalyst, e.g., H₂SO₄) |
| Carbonylation | Methanol + Carbon monoxide (catalyzed by rhodium/iodide) |
Applications
| Industry | Uses |
|---|---|
| Solvents | Paint, coating, nail polish removers, adhesives |
| Pharmaceuticals | Intermediate for vitamins, aspirin synthesis |
| Food & Fragrance | Artificial flavoring (fruity notes) |
| Chemical Synthesis | Precursor for acetic anhydride, methyl methacrylate |
Advantages vs. Limitations
| Advantages | Limitations |
|---|---|
| Low toxicity (vs. acetone) | High flammability |
| Fast evaporation rate | Weak solvent for some polymers |
| Biodegradable | Limited stability in water |
Safety & Environmental Data
| Parameter | Value/Recommendation |
|---|---|
| OSHA Exposure Limit | 200 ppm (8-hour TWA) |
| Environmental Impact | Low ozone depletion potential; degrades in air/water |
| Handling Precautions | Ventilation required; avoid sparks/open flames |
Comparison with Common Solvents
| Solvent | Methyl Acetate vs. Alternatives |
|---|---|
| Acetone | Less volatile, milder odor |
| Ethyl Acetate | Lower boiling point, faster drying |
| Toluene | Less toxic, but weaker solvency |
Summary
Methyl acetate is a versatile, eco-friendly solvent with applications in coatings, pharmaceuticals, and fragrances. Its low toxicity and biodegradability make it a preferred alternative to acetone or toluene, though flammability requires careful handling. Ongoing research explores its role in green chemistry and bio-based production.
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