Density of Common Alkynes
The density of alkynes is generally similar to that of alkanes and alkenes, as it primarily depends on the molecular weight and the packing arrangement of the molecules. The density of specific alkynes can vary, but in general, it is around 700 to 800 kg/m3 under standard conditions.
The following table provides a curated list of density values for common alkynes under 1 atmospheric (atm) pressure. (1 atm = 101,325 Pa)
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| Temperature | ||
|---|---|---|
| Acetylene (C2H2) | 0 | 1.175 |
| Propyne (C3H4) | 25 | 607 |
| 1-Butyne (C4H6) | 25 | 648 |
| 1-Pentyne (C5H8) | 25 | 688 |
| 1-Hexyne (C6H10) | 25 | 712 |
| 1-Heptyne (C7H12) | 25 | 728 |
| 1-Octyne (C8H14) | 25 | 743 |
| 1-Nonyne (C9H16) | 25 | 752 |
| 1-Decyne (C10H18) | 25 | 762 |
| 1-Undecyne (C11H20) | 25 | 769 |
| 1-Dodecyne (C12H22) | 25 | 775 |
| 1-Tridecyne (C13H24) | 25 | 781 |
| 1-Tetradecyne (C14H26) | 25 | 787 |
| 1-Pentadecyne (C15H28) | 25 | 789 |
| 1-Hexadecyne (C16H30) | 25 | 793 |
| 1-Heptadecyne (C17H32) | 25 | 796 |
| 1-Octadecyne (C18H34) | 25 | 803 |
| 1-Nonadecyne (C19H36) | 70 | 805 |
| 1-Eicosyne (C20H38) | 70 | 807 |
| 1-Heneicosyne (C21H40) | 70 | 821 |
| 1-Docosyne (C22H42) | 70 | 827 |
| 1-Tricosyne (C23H44) | 70 | 831 |
| 1-Tetracosyne (C24H46) | 70 | 835 |
| 1-Pentacosyne (C25H48) | 70 | 838 |
| 1-Hexacosyne (C26H50) | 70 | 841 |
| 1-Heptacosyne (C27H52) | 70 | 843 |
| 1-Octacosyne (C28H54) | 70 | 844 |
| 1-Nonacosyne (C29H56) | 70 | 845 |
| 1-Triacontyne (C30H58) | 70 | 846 |
| 1-Hentriacontyne (C31H60) | 70 | 900 |
| 1-Dotriacontyne (C32H62) | 70 | 902 |
| 1-Tritriacontyne (C33H64) | 70 | 904 |
| 1-Tetratriacontyne (C34H66) | 70 | 905 |
| 1-Pentatriacontyne (C35H68) | 70 | 907 |
| 1-Hexatriacontyne (C36H70) | 70 | 909 |
| 1-Heptatriacontyne (C37H72) | 70 | 910 |
| 1-Octatriacontyne (C38H74) | 70 | 912 |
| 1-Nonatriacontyne (C39H76) | 70 | 914 |
| 1-Tetracontyne (C40H78) | 70 | 915 |
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).