Chemical, Physical and Thermal Properties of Acetylene

Chemical, physical and thermal properties of Acetylene (Ethyne) - C2H2 :

Molecular Weight 26.04
Specific Gravity 0.90
Specific Volume (ft3/lb, m3/kg) 14.9, 0.93
Density of liquid at atmospheric pressure (lb/ft3, kg/m3) 43.0, 693
Absolute Viscosity (lbm/ft s, centipoises) 6.72 10-6, 0.01
Sound velocity in gas (m/s) 343
Specific Heat - cp - (Btu/lboF or cal/goC, J/kgK) 0.40, 1674
Specific Heat Ratio - cp/cv 1.25
Gas constant - R - (ft lb/lboR, J/kgoC) 59.3, 319
Thermal Conductivity (Btu/hr ft oF, W/moC) 0.014, 0.024
Boiling Point - saturation pressure 14.7 psia and 760 mm Hg - (oF, oC) -103, -75
Latent Heat of Evaporation at boiling point (Btu/lb, J/kg) 264, 614000
Freezing or Melting Point  at 1 atm (oF, oC) -116, -82.2
Latent Heat of Fusion (Btu/lb, J/kg) 23, 53500
Critical Temperature (oF, oC) 97.1, 36.2
Critical Pressure (psia, MN/m2) 907, 6.25
Flammable yes
Heat of combustion (Btu/ft3, Btu/lb, kJ/kg) 1450, 21600, 50200
  • values at 25oC (77oF, 298 K) and atmospheric pressure

Related Topics

  • Material Properties - Material properties - density, heat capacity, viscosity and more - for gases, fluids and solids

Related Documents

Tag Search

  • en: acetylene ethyne c2h2

Search the Engineering ToolBox

- "Search is the most efficient way to navigate the Engineering ToolBox!"

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your SketchUp model with the Engineering ToolBox - SketchUp Extension/Plugin - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

Translate the Engineering ToolBox!
About the Engineering ToolBox!

Support the ToolBox

If you find the Engineering ToolBox useful and want this website to be available tomorrow - and the days after tomorrow - enable ads or make a contribution!

Contribute to the Engineering ToolBox