{"compilation": {"title": "Solubility data from IUPAC SDS Volume 70 (page ?) - Methane with Tetramethylhexafluorpolycarbonate (TMHFPC)", "publisher": "The International Union of Pure and Applied Chemistry", "keywords": "Solubility, Solubility data series", "compilers": "Yuri P. Yampol'skii", "sources": [{"citation": "Pope, D. S.; Feming, G. K.; Koros, W. J.; Macromolecules 23, 2988 (1990).", "pubtype": "paper", "url": "https://doi.org/10.1021/ma00213a029"}], "system": "Methane with Tetramethylhexafluorpolycarbonate (TMHFPC)", "substances": [{"constituent": 1, "name": "Methane", "formula": "CH4", "molweight": 16.0425, "casrn": "74-82-8", "inchi": "InChI=1S/CH4/h1H4", "inchikey": "VNWKTOKETHGBQD-UHFFFAOYSA-N", "sample": "$\\ce{CH4}$: purity >99.99%. TMHFPC: synthesized, $\\rho = \\pu{1.200 g mL-1}$, $T_{\\rm{g}}$ = 481 K."}, {"constituent": 2, "name": "Tetramethylhexafluoropolycarbonate (TMHFPC)", "formula": null, "molweight": 0.0, "casrn": "125431-72-3"}], "method": "Two methods of conditioning were studied. Conventionally conditioned isotherm were obtained with the samples which had been previously in contact with $\\ce{CO2}$ gas under pressure of 6.2 MPa for 2\u20143 h with consequent pumping for two days. Exchange conditioning involves exposing samples to $\\ce{CO2}$ gas and then sweeping it with a methane flux. For exchange conditioning runs a gravimetric technique was used. In two other types of experiments a pressure decay method was applied [1].", "reference": {"citation": "Koros, W. J.; Paul, D. R.; J. Polym. Sci., Polym. Phys. Ed., 1976, 14, 1903.", "pubtype": "paper", "url": "https://doi.org/10.1002/pol.1976.180141014"}, "dataset": [{"series": 1, "title": "Sorption isotherms of methane at 308 K in unconditioned conventionally conditioned, and exchange-conditioned samples of TMHFPC (The original data were represented graphically)", "points": [{"pntnum": 1, "conditions": [], "data": [{"property": "Ambient pressure", "number": "2.0e-01", "significand": "2.0", "exponent": "-1", "sigfigs": "2", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "3.51e+00", "significand": "3.51", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 2, "conditions": [], "data": [{"property": "Ambient pressure", "number": "6.0e-01", "significand": "6.0", "exponent": "-1", "sigfigs": "2", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "8.50e+00", "significand": "8.50", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 3, "conditions": [], "data": [{"property": "Ambient pressure", "number": "1.05e+00", "significand": "1.05", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "1.266e+01", "significand": "1.266", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 4, "conditions": [], "data": [{"property": "Ambient pressure", "number": "1.61e+00", "significand": "1.61", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "1.639e+01", "significand": "1.639", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 5, "conditions": [], "data": [{"property": "Ambient pressure", "number": "2.23e+00", "significand": "2.23", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "2.003e+01", "significand": "2.003", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 6, "conditions": [], "data": [{"property": "Ambient pressure", "number": "2.94e+00", "significand": "2.94", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "2.333e+01", "significand": "2.333", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 7, "conditions": [], "data": [{"property": "Ambient pressure", "number": "7.0e-01", "significand": "7.0", "exponent": "-1", "sigfigs": "2", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "1.109e+01", "significand": "1.109", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 8, "conditions": [], "data": [{"property": "Ambient pressure", "number": "1.41e+00", "significand": "1.41", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "1.775e+01", "significand": "1.775", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 9, "conditions": [], "data": [{"property": "Ambient pressure", "number": "2.12e+00", "significand": "2.12", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "2.264e+01", "significand": "2.264", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 10, "conditions": [], "data": [{"property": "Ambient pressure", "number": "2.72e+00", "significand": "2.72", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "2.645e+01", "significand": "2.645", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 11, "conditions": [], "data": [{"property": "Ambient pressure", "number": "3.4e-01", "significand": "3.4", "exponent": "-1", "sigfigs": "2", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "7.02e+00", "significand": "7.02", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 12, "conditions": [], "data": [{"property": "Ambient pressure", "number": "7.1e-01", "significand": "7.1", "exponent": "-1", "sigfigs": "2", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "1.218e+01", "significand": "1.218", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 13, "conditions": [], "data": [{"property": "Ambient pressure", "number": "1.23e+00", "significand": "1.23", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "1.793e+01", "significand": "1.793", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 14, "conditions": [], "data": [{"property": "Ambient pressure", "number": "1.75e+00", "significand": "1.75", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "2.242e+01", "significand": "2.242", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 15, "conditions": [], "data": [{"property": "Ambient pressure", "number": "2.23e+00", "significand": "2.23", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "2.565e+01", "significand": "2.565", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 16, "conditions": [], "data": [{"property": "Ambient pressure", "number": "2.69e+00", "significand": "2.69", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "2.838e+01", "significand": "2.838", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}]}]}}