Acetylene

CRITICAL POINT GASEOUS PHASEName Temperature Pressure Density Specific Heat cw/cv Thermal Viscosity Solubilityat 288°K at 288°K Conductivity (standard in H2Oand and (standard conditions) (Bunsen’s coeff.98 kPa 101.3 kPa conditions) at 293°K andP gas =101.3 kPa)K MPa kg m -3 kJ kg -1 K -1 W m -1 K -1 10 -7 PGAS SOLID PHASE LIQUID PHASETriple point*Name Chemical Molecular Temperature Pressure Latent Density Volume of Boiling Latent Formula Weight Heat of at Gas Obtained Point at Heat of Fusion 98 kPa from 1 dm3 101.3 kPa Evap. atof Liquid 101.3 kPaK kPa kJ kg -1 kg m -3 m3 K kJ kg -1Acetylene C2H2 26.038 192.600 128.200 96.46 420.0 0.567 189.350 817.97Air - 28.960 - 1.400 - 870.0 0.740 78.800 204.15Ammonia NH3 17.310 195.410 6.077 331.59 682.0 0.966 239.740 1371.17Argon Ar 39.944 83.780 68.700 29.43 1396.0 0.853 87.290 160.80Carbon dioxide CO2 44.011 216.580 518.500 195.65 1180.0* 0.650 194.250 348.30Helium He 4.003 - 5.100 3.52 125.0 0.759 4.220 20.42Hydrogen H2 2.016 13.947 7.200 58.23 71.0 0.859 20.384 454.26Nitrogen N2 28.013 63.148 12.530 25.75 809.0 0.705 77.347 198.70Oxygen O2 31.998 54.351 0.152 13.90 1142.0 0.872 90.180 212.97Acetylene 308.33 6.1910 1.078 1.688 - 0.0180 948 1.0470Air 132.50 3.7700 1.186 1.005 1.402 0.0240 1719 0.0183Ammonia 405.55 11.4800 0.707 2.090 1.318 0.0220 923 0.7340Argon 150.86 4.8980 1.636 0.520 1.669 0.0160 2117 0.0340Carbon dioxide 304.21 7.3825 1.814 0.820 1.303 0.0150 1380 0.8704Helium 5.20 0.2275 0.163 5.196 1.668 0.1430 1865 0.0086Hydrogen 33.24 1.2980 0.082 14.320 1.408 0.1710 845 0.0178Nitrogen 126.20 3.3990 1.147 1.038 1.403 0.0240 1656 0.01557Oxygen 154.57 5.0430 1.311 0.913 1.398 0.0240 1919 0.0310APPLICATIONSAND SERVICESApplications• welding and cutting (autogenousenergy)• production of lampblack• flaming outAcetylene can also be supplied:• with grade 2.6 purity.Services available to customers• transport in cylinders andpacks of cylinders• design and installation ofgas distribution systems• supply of equipment forthe correct use of the gas• assistance and technical consultancy for the transport,distribution and applicationof the gas.