513-35-9
Product Name:
2-Methyl-2-butene
Formula:
C5H10
Synonyms:
β-Isoamylene;2-Methyl-2-butene;Amylene;Isoamylene, Trimethylethylene
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | 2-methyl-2-butene appears as a clear colorless liquid with a petroleum-like odor. Less dense than water and insoluble in water. Hence floats on water. Vapors heavier than air. |
|---|---|
| Color/Form | LIQUID AT ROOM TEMPERATURE |
| Odor | Disagreeable odor |
| Boiling Point | 37.5-38.5 °C |
| Melting Point | -133.61 °C |
| Flash Point | less than 20 °F (NFPA, 2010) |
| Solubility | Practically insol in water; miscible with alcohol, ether |
| Density | 0.66 @ 15 °C/4 °C |
| Vapor Density | 2.4 (AIR= 1) |
| Vapor Pressure | 468.0 [mmHg] |
| Henry's Law Constant | Henry's Law constant = 0.110 atm-cu m/mole |
| Viscosity | 3.1641X10-3 Pa/s @ 139.39 K |
| Heat of Vaporization | 3.4634X10+7 J/kmol @ 139.39 K |
| Surface Tension | 3.6410X10-2 N/m @ 139.39 K |
| Refractive Index | Index of refraction: 1.3874 @ 20 °C/D |
| Kovats Retention Index | 518.6 520 513.84 514.38 514 519.5 520.3 520.4 520.2 515 525 523 520.1 519.8 519.8 520 520 519 519 520 520 520 519.9 520.3 514 520 520 520 519 522 519 521 514 515 521 514 514.6 514.3 515 522 513.8 522 517 520 520 517 517 517 514 519 515 514 525 531 |
| Other Experimental Properties | Polymerizes on long standing |
| Chemical Classes | Other Classes -> Aliphatics, Unsaturated |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H224:Flammable liquids H302:Acute toxicity,oral H304:Aspiration hazard H336:Specific target organ toxicity,single exposure; Narcotic effects H341:Germ cell mutagenicity H411:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P201:Obtain special instructions before use. P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P273:Avoid release to the environment. P308+P313:IF exposed or concerned: Get medical advice/attention. P403+P233:Store in a well-ventilated place. Keep container tightly closed. |
COMPUTED DESCRIPTORS
| Molecular Weight | 70.13 g/mol |
|---|---|
| XLogP3 | 2.3 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 0 |
| Exact Mass | 70.078250319 g/mol |
| Monoisotopic Mass | 70.078250319 g/mol |
| Topological Polar Surface Area | 0 Ų |
| Heavy Atom Count | 5 |
| Formal Charge | 0 |
| Complexity | 38 |
| 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
2-methyl-2-butene appears as a clear colorless liquid with a petroleum-like odor. Less dense than water and insoluble in water. Hence floats on water. Vapors heavier than air.