| Property | Specification | Test Method |
|---|---|---|
| Appearance | Clear, colorless liquid with a pungent fruity odor | Visual |
| Assay (as CH₃CHO) | Typically 99.0% or higher (depending on grade) | Gas Chromatography (GC) |
| Stabilizer | Type and % by weight (e.g., 1% hydroquinone) | Varies (e.g., GC) |
| Density (at 20°C) | ~0.78 g/mL | Density meter |
| Boiling Point | ~21°C | Distillation |
| Freezing Point | ~-121°C | Freezing Point Apparatus |
