Tetrahydrofuran
SIAL/87369 - Selectophore™, ≥99.5%
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
| assay | ≥99.5% |
| ≥99.5% (GC) | |
| autoignition temp. | 610 °F |
| bp | 65-67 °C (lit.) |
| density | 0.889 g/mL at 25 °C (lit.) |
| description | solvent for preparation of membranes |
| expl. lim. | 1.8-11.8 % |
| form | liquid |
| grade | for ion-selective electrodes |
| impurities | ≤0.01% water |
| InChI | 1S/C4H8O/c1-2-4-5-3-1/h1- |
| InChI key | WYURNTSHIVDZCO-UHFFFAOYSA |
| mp | −108 °C (lit.) |
| product line | Selectophore™ |
| 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: | THF has been used to realise PVC membrane from electrode, during a study to design, fabricate and electrochemically characterize miniaturised thin- and thick-film Ag/AgCl reference electrodes. |
| General description: | Tetrahydrofuran (THF), an organic compound which belongs to saturated cyclic ether group. It is mainly used as solvent for PVC and organoalkali compounds. It is also used in lithium batteries. |
| General description: | Visit our Sensor Applications portal to learn more. |
| Legal Information: | Selectophore is a trademark of Sigma-Aldrich Chemie GmbH |
| Symbol |    GHS02,GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H225 - H302 - H319 - H335 - H336 - H351 |
| Precautionary statements | P201 - P202 - P210 - 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 | ≥99.5% (GC); ≥99.5% |
| bp | 65-67 °C (lit.) |
| mp | −108 °C (lit.) |
| Density | 0.889 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12191501 |