Description
(Stabilized with 0.1% quinol)
THF; Butylene Oxide; Cyclotetramethylene oxide; 1,4-Epoxybutane
| CAS | 109-99-9 |
| Molecular Formula | C4H8O |
| Molecular Weight | 72.11 |
| Shelf Life | 60 Months |
| Physical Properties | |||
| Physical State at 20 °C | Liquid | Colour | Clear Colorless |
| Odour | Ether odor | pH Value | 7 |
| Melting Point/ Freezing Point [°C] | -108 °C | Auto-Ignition Temperature [°C] | 321 °C |
| Flammability (Solid, Gas) | Flammable | Flash Point [°C] | -17 °C |
| Boiling Point [°C] | 65 – 67 °C | Initial Boiling Point [°C] | 65 °C |
| Final Boiling Point [°C] | 67 °C | Vapour Pressure [20°C] | 190.7 hPa at 20°C |
| Vapour Density | 2.5 | Density [g/cm3] | 0.88 |
| Solubility in Water [% weight] | Soluble in water | Explosion Limits – Upper [%] | 11.80% |
| Explosion Limits -Lower [%] | 1.80% | ||
| Specifications | |||
| Appearance | A clear colorless liquid | Assay (Gc Area %) | Min 99% |
| Weight/ Ml at 20°C | 0.886 – 0.888 g | Refractive Index (20°C; 589 Nm) | 1.407-1.409 |
| Water (H2O) | Max 0.1% | ||
| Dangerous Goods Information | |||
| UN Number | 2056 | DG Class | 3 |
| Safety Information & Hazard Symbols | |
| Symbol | GHS02, GHS07 |
| Signal Word | Danger |
| Hazard Statement | H225-H319-H335 |
| Precaution Statement | P210-P261-P305 + P351 + P338 |















