CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Thiophene appears as a colorless liquid with an unpleasant odor. Insoluble in water and slightly denser than water. Flash point 30 °F. Vapors heavier than air. Irritates the skin, eyes, and mucous membranes. Used to make pharmaceuticals and dyes. |
|---|---|
| Color/Form | COLORLESS LIQUID |
| Odor | SLIGHT AROMATIC ODOR RESEMBLING BENZENE |
| Boiling Point | 183.9 °F at 760 mmHg (NTP, 1992) |
| Melting Point | -36.8 °F (NTP, 1992) |
| Flash Point | 30 °F (NTP, 1992) |
| Solubility | less than 1 mg/mL at 75 °F (NTP, 1992) |
| Density | 1.0649 at 68 °F (NTP, 1992) - Denser than water; will sink |
| Vapor Density | 2.9 (NTP, 1992) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | 20 mmHg at 32 °F ; 60 mmHg at 68.2 °F; 760 mmHg at 183.9 °F (NTP, 1992) |
| LogP | log Kow = 1.81 |
| Autoignition Temperature | 395 °C |
| Decomposition | WHEN HEATED TO DECOMPOSITION IT EMITS HIGHLY TOXIC FUMES OF SULFUR OXIDES. |
| Viscosity | 0.621 mPa.s |
| Heat of Combustion | -2807 kJ/mol |
| Heat of Vaporization | 32.483 kJ/mol |
| Refractive Index | INDEX OF REFRACTION: 1.52684 @ 25 °C/D |
| Kovats Retention Index | 649 658 668 648 650 646 648 668 668 668 670 671 650 648 651.8 646 647 647 643.23 685 651 657.4 650 653 644 645 644 645 665 650 647 655 |
| Other Experimental Properties | CYCLIC ORGANOSULFUR; HIGHLY REACTIVE |
| Chemical Classes | Other Classes -> Thiophenes |
COMPUTED DESCRIPTORS
| Molecular Weight | 84.14 g/mol |
|---|---|
| XLogP3 | 1.8 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 0 |
| Exact Mass | 84.00337130 g/mol |
| Monoisotopic Mass | 84.00337130 g/mol |
| Topological Polar Surface Area | 28.2 Ų |
| Heavy Atom Count | 5 |
| Formal Charge | 0 |
| Complexity | 22.8 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Thiophene appears as a colorless liquid with an unpleasant odor. Insoluble in water and slightly denser than water. Flash point 30 °F. Vapors heavier than air. Irritates the skin, eyes, and mucous membranes. Used to make pharmaceuticals and dyes.