Tetrahydrofuran
SIAL/186562 - anhydrous, contains 250 ppm BHT as inhibitor, ≥99.9%
Synonym: THF; Butylene oxide; Oxolane; Tetramethylene oxide
CAS Number: 109-99-9
Empirical Formula (Hill Notation): C4H8O
Molecular Weight: 72.11
EC Number: 203-726-8
MDL Number: MFCD00005356
Linear Formula: C4H8O
Product Type: Chemical
Anhydrous, Sureseal
Anhydrous, Sureseal
| assay | ≥99.9% |
| autoignition temp. | 610 °F |
| bp | 65-67 °C (lit.) |
| contains | 250 ppm BHT as inhibitor |
| density | 0.889 g/mL at 25 °C (lit.) |
| expl. lim. | 1.8-11.8 % |
| form | liquid |
| grade | anhydrous |
| impurities | ≤0.005% peroxides (as H2O2) |
| <0.002% water (All units except 100 mL) | |
| <0.005% water (100 mL pkg) | |
| InChI | 1S/C4H8O/c1-2-4-5-3-1/h1- |
| InChI key | WYURNTSHIVDZCO-UHFFFAOYSA |
| mp | −108 °C (lit.) |
| pH | ~7 |
| Quality Level | 200  |
| refractive index | n |
| SMILES string | C1CCOC1 |
| solubility | H2O: soluble |
| vapor density | 2.5 (vs air) |
| vapor pressure | 114 mmHg ( 15 °C) |
| 143 mmHg ( 20 °C) |
| Application: | Dry tetrahydrofuran (THF) has been used in the synthesis of dichloro{bis[1,1′,1′′-(ph |
| General description: | Tetrahydrofuran (THF) is a saturated cyclic ether mainly used as an organic solvent. On long term storage it forms organic peroxides. This process can be suppressed by adding butylated hydroxytoluene (BHT) as a stabilizer. BHT removes the free radicals required for the peroxide formation. It constitutes the key fragment of various natural products (polyether antibiotics). THF forms double hydrate with hydrogen sulfide, crystal structure of this double hydrate has been investigated by three-dimensional single-crystal studies. |
| Other Notes: | Greener alternatives are available for many THF applications, 2-Methyltetrahydrofuran (414247 ) and Cyclopentyl methyl ether (675970 ) |
| Packaging: | 1, 6×1, 2, 4×2 L in Sure/Seal™ |
| Packaging: | 100, 12×100 mL in Sure/Seal™ |
| Packaging: | 18 L in Pure-Pac™ 1 |
| Packaging: | 208 L in steel drum |
| Packaging: | 50, 200 L in Pure-Pac™ 2 |
| Packaging: | View returnable container options . |
| Symbol |    GHS02,GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H225 - H302 - H319 - H335 - H336 - H351 |
| Precautionary statements | P202 - P210 - P233 - P301 + P312 - P305 + P351 + P338 - P308 + P313 |
| Hazard Codes | F,Xn |
| Risk Statements | 11-19-36/37-40 |
| Safety Statements | 13-16-29-33-36-37-46 |
| RIDADR | UN 2056 3 / PGII |
| WGK Germany | WGK 1 |
| Flash Point(F) | -6.2 °F - closed cup |
| Flash Point(C) | -21.2 °C - closed cup |
| Supplemental Hazard Statements | EUH019 |
| Purity | ≥99.9% |
| bp | 65-67 °C (lit.) |
| mp | −108 °C (lit.) |
| Density | 0.889 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12191501 |