| Molecular Formula | C5H10O2 |
| Molar Mass | 102.13 |
| JECFA Number | 305 |
| Water Solubility | 2.90 g/100 mL |
| Solubility | 1 M HCl: soluble50mg/mL, clear to slightly hazy, colorless |
| Vapor Presure | 47 mm Hg ( 20 °C) |
| Vapor Density | 3.5 (vs air) |
| Appearance | Liquid |
| Color | Clear colorless |
| Odor | Pleasant, fruity; nonresidual. |
| Exposure Limit | TLV-TWA 250 ppm (~950 mg/m3)(ACGIH, MSHA, and OSHA); TLV-STEL310 ppm (~1185 mg/m3) (ACGIH); IDLH16,000 ppm (NIOSH). |
| Merck | 14,5205 |
| BRN | 1740761 |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Flammable - note low flash point. Incompatible with strong oxidizing agents, strong acids, nitrates, alkali metals. May attack some plastics and rubber. |
| Sensitive | Moisture Sensitive |
| Explosive Limit | 1.8%, 37°F |
| Physical and Chemical Properties | Characteristics of colorless transparent liquid, fruit flavor. Volatile. boiling point 90 ºC relative density 0.8718 refractive index 1.3773 melting point -73.4 ºC flash point 6 ºC solubility, most organic solvents such as ether are miscible. 2.9% by weight dissolved in water at 20 °c. |
| Use | It is mainly used as a solvent for coatings, printing inks, etc., and is also a commonly used dehydrating agent in industry, an extractant in drug production and a perfume component |
| Risk Codes | R11 - Highly Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. R67 - Vapors may cause drowsiness and dizziness R66 - Repeated exposure may cause skin dryness or cracking R36 - Irritating to the eyes |
| Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S33 - Take precautionary measures against static discharges. S29 - Do not empty into drains. |
| UN IDs | UN 1220 3/PG 2 |
| WGK Germany | 1 |
| RTECS | AI4930000 |
| TSCA | Yes |
| HS Code | 29153900 |
| Hazard Class | 3 |
| Packing Group | II |
| Toxicity | LD50 orally in rats: 6.75 g/kg (Smyth) |
Flammable, its vapor and air can form an explosive mixture. In case of open fire, high heat energy caused combustion explosion; Can react strongly with oxidizing agents. Its vapor is heavier than air, can spread to a considerable distance at a low point, and will lead to a return fire in case of open fire. Combustion (decomposition) products: carbon monoxide, carbon dioxide and water.