CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Gas or Vapor; Liquid |
|---|---|
| Color/Form | Flammable gas |
| Odor | Slightly aromatic odor |
| Boiling Point | 3.72 °C |
| Melting Point | -138.89 °C |
| Flash Point | -11.99 °C (10.42 °F) - closed cup |
| Solubility | In water, 658 mg/L at 25 °C |
| Density | 0.616 g/cu cm at 25 °C |
| Vapor Density | 1.9 (Air = 1) |
| Vapor Pressure | Vapor pressure: 1410 mm Hg at 21 °C |
| LogP | log Kow = 2.33 |
| Henry's Law Constant | Henry's Law constant = 0.231 atm-cu m/mole at 25 °C |
| Stability/Shelf Life | Stable under recommended storage conditions. |
| Autoignition Temperature | 617 °F (325 °C) |
| Decomposition | When heated to decomposition it emits acrid smoke and fumes. |
| Viscosity | 0.00782 mPa |
| Heat of Combustion | -2712 kJ/mol |
| Heat of Vaporization | 22.17 kJ/mol |
| Refractive Index | Index of refraction: 1.3931 at 25 °C |
| Kovats Retention Index | 420 416.44 418.18 428.2 425 425 425 418 427 427 422 426 416 417 415.4 428 416.2 421 417 420 420 416 417 427 431 |
| Other Experimental Properties | A colorless liquified petroleum gas |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Flame Flammables GHS02  Gas Cylinder Compressed Gases GHS04 |
| GHS Hazard Statements |
H220:Flammable gases H280:Gases under pressure |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P410+P403:Protect from sunlight. Store in a well-ventilated place. |
COMPUTED DESCRIPTORS
| Molecular Weight | 56.11 g/mol |
|---|---|
| XLogP3 | 2.3 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 0 |
| Exact Mass | 56.062600255 g/mol |
| Monoisotopic Mass | 56.062600255 g/mol |
| Topological Polar Surface Area | 0 Ų |
| Heavy Atom Count | 4 |
| Formal Charge | 0 |
| Complexity | 15.2 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 1 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Cis-but-2-ene is a but-2-ene.