Colin L. Young 2 2.9815e+02 Ambient temperature 5 2.9815 $\pu{K}$ 2 1.013e+02 Ambient pressure 4 1.013 $\pu{kPa}$ 1 5.29e+01 Henry's Law Solubility Coefficient 3 5.29 $\pu{atm}$ 1 -2 1.89e-02 Mole fraction - Liquid (1) 3 1.89 1 1 Solubility, Solubility data series A conventional gas-liquid chromatographic unit fitted with a thermal conductivity detector was used. The carrier gas was helium. The value of Henry's law constant was calculated from the retention time. The value applies to very low partial pressures of gas and there may be a substantial difference from that measured at 1 atm. pressure. There is also considerable uncertainty in the value of Henry's constant since surface adsorption was not allowed for although its possible existence was noted. The International Union of Pure and Applied Chemistry Lenoir, J-Y.; Renault, P.; Renon, H.; J. Chem. Eng. Data 1971, 16, 340-2. paper https://doi.org/10.1021/je60050a014 680-31-9 2 C6H18N3OP InChI=1S/C6H18N3OP/c1-7(2)11(10,8(3)4)9(5)6/h1-6H3 GNOIPBMMFNIUFM-UHFFFAOYSA-N 179.2 Hexamethylphosphoric triamide Touzart and Matignon or Serlabo sample, purity 99 mole%. 74-85-1 1 C2H4 InChI=1S/C2H4/c1-2/h1-2H2 VGGSQFUCUMXWEO-UHFFFAOYSA-N 28.0532 Ethene L'Air Liquide sample, minimum purity 99.9 mole%. Ethene with Hexamethylphosphoric triamide