Home › Chemicals › Methyl Acetate CAS 79-20-9: Methyl Acetate (C3H6O2) Identity CAS Number 79-20-9 Molecular Formula C3H6O2 IUPAC Name methyl ethanoate Molecular Weight 74.08 g/mol SMILES COC(=O)CSynonyms MeOAc, methyl ethanoate, acetic acid methyl ester
2D Structure
Physical Properties Density 0.934 g/mL at 25°C Boiling Point 56.9°C Melting Point -98.1°C Flash Point -10.0°C Vapor Pressure 22.8 kPa at 20°C Refractive Index nD = 1.361 Dielectric Constant ε = 6.7
Safety & GHS Classification Flammable Irritant
H225: Highly flammable liquid and vapor H319: Causes serious eye irritation H336: May cause drowsiness or dizziness Storage: Store in cool, well-ventilated area. Extremely flammable — low boiling point (56.9°C). Use explosion-proof equipment. Keep away from ignition sources.
Material Compatibility Matrix Plastics Material Rating PTFE Excellent PVC Fair PE Good PP Good PEEK Excellent PVDF Good
Rubbers Material Rating Viton Poor NBR Severe Effect EPDM Good Silicone Fair FKM Poor
Metals Material Rating Stainless 316 Excellent Aluminum Excellent Copper Excellent Brass Excellent
Applications Fast-evaporating solvent for paints and coatings Electronics cleaning solvent Solvent replacement for acetone and MEK Adhesive manufacturing Chromatography solvent Chemical intermediate Resin and plastic solvent External References: PubChem
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