Molar Mass of Common Alkynes
The molar mass of alkynes, which are a class of hydrocarbons containing carbon-carbon triple bonds, depends on the specific molecular formula of the alkyne. The general formula for an alkyne is CnH2n-2. The table below provides a curated list of molar mass data for common alkynes.
| Acetylene (C2H2) | 26.04 |
| Propyne (C3H4) | 40.06 |
| 1-Butyne (C4H6) | 54.09 |
| 1-Pentyne (C5H8) | 68.12 |
| 1-Hexyne (C6H10) | 82.14 |
| 1-Heptyne (C7H12) | 96.17 |
| 1-Octyne (C8H14) | 110.2 |
| 1-Nonyne (C9H16) | 124.22 |
| 1-Decyne (C10H18) | 138.25 |
| 1-Undecyne (C11H20) | 152.28 |
| 1-Dodecyne (C12H22) | 166.3 |
| 1-Tridecyne (C13H24) | 180.33 |
| 1-Tetradecyne (C14H26) | 194.36 |
| 1-Pentadecyne (C15H28) | 208.38 |
| 1-Hexadecyne (C16H30) | 222.41 |
| 1-Heptadecyne (C17H32) | 236.44 |
| 1-Octadecyne (C18H34) | 250.46 |
| 1-Nonadecyne (C19H36) | 264.49 |
| 1-Eicosyne (C20H38) | 278.52 |
| 1-Heneicosyne (C21H40) | 292.54 |
| 1-Docosyne (C22H42) | 306.57 |
| 1-Tricosyne (C23H44) | 320.6 |
| 1-Tetracosyne (C24H46) | 334.62 |
| 1-Pentacosyne (C25H48) | 348.65 |
| 1-Hexacosyne (C26H50) | 362.68 |
| 1-Heptacosyne (C27H52) | 376.7 |
| 1-Octacosyne (C28H54) | 390.73 |
| 1-Nonacosyne (C29H56) | 404.75 |
| 1-Triacontyne (C30H58) | 418.78 |
| 1-Hentriacontyne (C31H60) | 432.81 |
| 1-Dotriacontyne (C32H62) | 446.8 |
| 1-Tritriacontyne (C33H64) | 460.9 |
| 1-Tetratriacontyne (C34H66) | 474.9 |
| 1-Pentatriacontyne (C35H68) | 488.9 |
| 1-Hexatriacontyne (C36H70) | 502.9 |
| 1-Heptatriacontyne (C37H72) | 516.98 |
| 1-Octatriacontyne (C38H74) | 531 |
| 1-Nonatriacontyne (C39H76) | 545 |
| 1-Tetracontyne (C40H78) | 559 |
| 1-Hentetracontyne (C41H80) | 573.1 |
| 1-Dotetracontyne (C42H82) | 587.1 |
| 1-Tritetracontyne (C43H84) | 601.1 |
| 1-Tetratetracontyne (C44H86) | 615.2 |
| 1-Pentatetracontyne (C45H88) | 629.2 |
| 1-Hexatetracontyne (C46H90) | 643.2 |
| 1-Heptatetracontyne (C47H92) | 657.2 |
Related Tables
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017. 3) Yaws, Carl L. The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals. Netherlands: Elsevier Science, 2015. 4) Occupational Safety and Health Administration (OSHA): The National Institute for Occupational Safety and Health (NIOSH).