{"compilation": {"title": "Solubility data from IUPAC SDS Volume 66 (page ?) - Ammonium dihydrogenphosphate with Urea, Ammonium nitrate and Water", "publisher": "The International Union of Pure and Applied Chemistry", "keywords": "Solubility, Solubility data series", "compilers": "Jitka Eysseltov\u00e1", "sources": [{"citation": "Pozin, M. E.; Kopylev, B. A.; Shilling, N. A.; Izv. Vissh. Ucheb. Zaved.; Khim. Khim. Tekhnol. 8, 883 (1965).", "pubtype": "paper"}], "system": "Ammonium dihydrogenphosphate with Urea, Ammonium nitrate and Water", "substances": [{"constituent": 1, "name": "Ammonium dihydrogenphosphate", "formula": "NH4H2PO4", "molweight": 115.026, "casrn": "7722-76-1", "inchi": "InChI=1S/H3N.H3O4P/c;1-5(2,3)4/h1H3;(H3,1,2,3,4)", "inchikey": "LFVGISIMTYGQHF-UHFFFAOYSA-N", "sample": "Chemically pure salts were recrystallized three times before use."}, {"constituent": 2, "name": "Urea", "formula": "CH4N2O", "molweight": 60.0553, "casrn": "57-13-6", "inchi": "InChI=1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)", "inchikey": "XSQUKJJJFZCRTK-UHFFFAOYSA-N"}, {"constituent": 3, "name": "Ammonium nitrate", "formula": "NH4NO3", "molweight": 80.0434, "casrn": "6484-52-2", "inchi": "InChI=1S/NO3.H3N/c2-1(3)4;/h;1H3/q-1;/p+1", "inchikey": "DVARTQFDIMZBAA-UHFFFAOYSA-O"}, {"constituent": 4, "name": "Water", "formula": "H2O", "molweight": 18.0153, "casrn": "7732-18-5", "inchi": "InChI=1S/H2O/h1H2", "inchikey": "XLYOFNOQVPJJNP-UHFFFAOYSA-N"}], "method": "Mixtures of dry salts and water were stirred vigorously (900 rpm to 1200 rpm) and heated 1 \u00b0C to 2 \u00b0C above the temperature at which the last crystal disappeared. The solution was then cooled at the rate of 1 deg/hr to 2 deg/hr and the temperature at which the last crystal disappeared was observed. The supersaturation isotherms were constructed graphically.", "dataset": [{"series": 1, "title": "Supersaturation in the NH<sub>4</sub>H<sub>2</sub>PO<sub>4</sub>-NH<sub>4</sub>NO<sub>3</sub>-CO(NH<sub>2</sub>)<sub>2</sub>-H<sub>2</sub>O system at 10&deg;C<br />Part 1. The authors' data:", "points": [{"pntnum": 1, "conditions": [], "data": [{"property": "Percent mass fraction (1)", "number": "4e+01", "significand": "4", "exponent": "1", "sigfigs": "1", "unit": "1"}, {"property": "Mass (1) per 100 g", "number": "1.28e+01", "significand": "1.28", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass (2) per 100 g", "number": "5.12e+01", "significand": "5.12", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass per 100 g solute (3)", "number": "3.6e+01", "significand": "3.6", "exponent": "1", "sigfigs": "2", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}], "supplemental": [{"property": "Total Nutrition in Solute Phase", "number": "5.912e+01", "significand": "5.912", "exponent": "1", "sigfigs": "4", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Total Nutrition in Solution Phase", "number": "2.36e+01", "significand": "2.36", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}]}, {"pntnum": 2, "conditions": [], "data": [{"property": "Percent mass fraction (1)", "number": "3.7e+01", "significand": "3.7", "exponent": "1", "sigfigs": "2", "unit": "1"}, {"property": "Mass (1) per 100 g", "number": "1.5e+01", "significand": "1.5", "exponent": "1", "sigfigs": "2", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass (2) per 100 g", "number": "6e+01", "significand": "6", "exponent": "1", "sigfigs": "1", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass per 100 g solute (3)", "number": "2.5e+01", "significand": "2.5", "exponent": "1", "sigfigs": "2", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}], "supplemental": [{"property": "Total Nutrition in Solute Phase", "number": "6.112e+01", "significand": "6.112", "exponent": "1", "sigfigs": "4", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Total Nutrition in Solution Phase", "number": "2.26e+01", "significand": "2.26", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}]}, {"pntnum": 3, "conditions": [], "data": [{"property": "Percent mass fraction (1)", "number": "3e+01", "significand": "3", "exponent": "1", "sigfigs": "1", "unit": "1"}, {"property": "Mass (1) per 100 g", "number": "1.61e+01", "significand": "1.61", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass (2) per 100 g", "number": "6.44e+01", "significand": "6.44", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass per 100 g solute (3)", "number": "1.95e+01", "significand": "1.95", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}], "supplemental": [{"property": "Total Nutrition in Solute Phase", "number": "6.229e+01", "significand": "6.229", "exponent": "1", "sigfigs": "4", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Total Nutrition in Solution Phase", "number": "1.87e+01", "significand": "1.87", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}]}, {"pntnum": 4, "conditions": [], "data": [{"property": "Percent mass fraction (1)", "number": "4e+01", "significand": "4", "exponent": "1", "sigfigs": "1", "unit": "1"}, {"property": "Mass (1) per 100 g", "number": "2.2e+01", "significand": "2.2", "exponent": "1", "sigfigs": "2", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass (2) per 100 g", "number": "3.3e+01", "significand": "3.3", "exponent": "1", "sigfigs": "2", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass per 100 g solute (3)", "number": "4.5e+01", "significand": "4.5", "exponent": "1", "sigfigs": "2", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}], "supplemental": [{"property": "Total Nutrition in Solute Phase", "number": "5.258e+01", "significand": "5.258", "exponent": "1", "sigfigs": "4", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Total Nutrition in Solution Phase", "number": "2.09e+01", "significand": "2.09", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}]}, {"pntnum": 5, "conditions": [], "data": [{"property": "Percent mass fraction (1)", "number": "3.7e+01", "significand": "3.7", "exponent": "1", "sigfigs": "2", "unit": "1"}, {"property": "Mass (1) per 100 g", "number": "2.72e+01", "significand": "2.72", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass (2) per 100 g", "number": "4.08e+01", "significand": "4.08", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass per 100 g solute (3)", "number": "3.2e+01", "significand": "3.2", "exponent": "1", "sigfigs": "2", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}], "supplemental": [{"property": "Total Nutrition in Solute Phase", "number": "5.39e+01", "significand": "5.39", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Total Nutrition in Solution Phase", "number": "1.99e+01", "significand": "1.99", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}]}, {"pntnum": 6, "conditions": [], "data": [{"property": "Percent mass fraction (1)", "number": "3.5e+01", "significand": "3.5", "exponent": "1", "sigfigs": "2", "unit": "1"}, {"property": "Mass (1) per 100 g", "number": "2.8e+01", "significand": "2.8", "exponent": "1", "sigfigs": "2", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass (2) per 100 g", "number": "4.2e+01", "significand": "4.2", "exponent": "1", "sigfigs": "2", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass per 100 g solute (3)", "number": "3e+01", "significand": "3", "exponent": "1", "sigfigs": "1", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}], "supplemental": [{"property": "Total Nutrition in Solute Phase", "number": "5.481e+01", "significand": "5.481", "exponent": "1", "sigfigs": "4", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Total Nutrition in Solution Phase", "number": "1.92e+01", "significand": "1.92", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}]}, {"pntnum": 7, "conditions": [], "data": [{"property": "Percent mass fraction (1)", "number": "3e+01", "significand": "3", "exponent": "1", "sigfigs": "1", "unit": "1"}, {"property": "Mass (1) per 100 g", "number": "3e+01", "significand": "3", "exponent": "1", "sigfigs": "1", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass (2) per 100 g", "number": "4.5e+01", "significand": "4.5", "exponent": "1", "sigfigs": "2", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass per 100 g solute (3)", "number": "2.5e+01", "significand": "2.5", "exponent": "1", "sigfigs": "2", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}], "supplemental": [{"property": "Total Nutrition in Solute Phase", "number": "5.538e+01", "significand": "5.538", "exponent": "1", "sigfigs": "4", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Total Nutrition in Solution Phase", "number": "1.66e+01", "significand": "1.66", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}]}, {"pntnum": 8, "conditions": [], "data": [{"property": "Percent mass fraction (1)", "number": "4e+01", "significand": "4", "exponent": "1", "sigfigs": "1", "unit": "1"}, {"property": "Mass (1) per 100 g", "number": "3e+01", "significand": "3", "exponent": "1", "sigfigs": "1", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass (2) per 100 g", "number": "3e+01", "significand": "3", "exponent": "1", "sigfigs": "1", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass per 100 g solute (3)", "number": "4e+01", "significand": "4", "exponent": "1", "sigfigs": "1", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}], "supplemental": [{"property": "Total Nutrition in Solute Phase", "number": "5.136e+01", "significand": "5.136", "exponent": "1", "sigfigs": "4", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Total Nutrition in Solution Phase", "number": "2.00e+01", "significand": "2.00", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}]}, {"pntnum": 9, "conditions": [], "data": [{"property": "Percent mass fraction (1)", "number": "3.7e+01", "significand": "3.7", "exponent": "1", "sigfigs": "2", "unit": "1"}, {"property": "Mass (1) per 100 g", "number": "3.25e+01", "significand": "3.25", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass (2) per 100 g", "number": "3.25e+01", "significand": "3.25", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass per 100 g solute (3)", "number": "3.5e+01", "significand": "3.5", "exponent": "1", "sigfigs": "2", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}], "supplemental": [{"property": "Total Nutrition in Solute Phase", "number": "5.179e+01", "significand": "5.179", "exponent": "1", "sigfigs": "4", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Total Nutrition in Solution Phase", "number": "1.915e+01", "significand": "1.915", "exponent": "1", "sigfigs": "4", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}]}, {"pntnum": 10, "conditions": [], "data": [{"property": "Percent mass fraction (1)", "number": "3.5e+01", "significand": "3.5", "exponent": "1", "sigfigs": "2", "unit": "1"}, {"property": "Mass (1) per 100 g", "number": "3.95e+01", "significand": "3.95", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass (2) per 100 g", "number": "3.95e+01", "significand": "3.95", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass per 100 g solute (3)", "number": "2.1e+01", "significand": "2.1", "exponent": "1", "sigfigs": "2", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}], "supplemental": [{"property": "Total Nutrition in Solute Phase", "number": "5.280e+01", "significand": "5.280", "exponent": "1", "sigfigs": "4", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Total Nutrition in Solution Phase", "number": "1.85e+01", "significand": "1.85", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}]}, {"pntnum": 11, "conditions": [], "data": [{"property": "Percent mass fraction (1)", "number": "3e+01", "significand": "3", "exponent": "1", "sigfigs": "1", "unit": "1"}, {"property": "Mass (1) per 100 g", "number": "4.15e+01", "significand": "4.15", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass (2) per 100 g", "number": "4.15e+01", "significand": "4.15", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass per 100 g solute (3)", "number": "1.7e+01", "significand": "1.7", "exponent": "1", "sigfigs": "2", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}], "supplemental": [{"property": "Total Nutrition in Solute Phase", "number": "5.313e+01", "significand": "5.313", "exponent": "1", "sigfigs": "4", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Total Nutrition in Solution Phase", "number": "1.595e+01", "significand": "1.595", "exponent": "1", "sigfigs": "4", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}]}, {"pntnum": 12, "conditions": [], "data": [{"property": "Percent mass fraction (1)", "number": "4e+01", "significand": "4", "exponent": "1", "sigfigs": "1", "unit": "1"}, {"property": "Mass (1) per 100 g", "number": "5.27e+01", "significand": "5.27", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass (2) per 100 g", "number": "2.63e+01", "significand": "2.63", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass per 100 g solute (3)", "number": "2.1e+01", "significand": "2.1", "exponent": "1", "sigfigs": "2", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}], "supplemental": [{"property": "Total Nutrition in Solute Phase", "number": "4.765e+01", "significand": "4.765", "exponent": "1", "sigfigs": "4", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Total Nutrition in Solution Phase", "number": "1.91e+01", "significand": "1.91", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}]}, {"pntnum": 13, "conditions": [], "data": [{"property": "Percent mass fraction (1)", "number": "3.7e+01", "significand": "3.7", "exponent": "1", "sigfigs": "2", "unit": "1"}, {"property": "Mass (1) per 100 g", "number": "6.07e+01", "significand": "6.07", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass (2) per 100 g", "number": "3.03e+01", "significand": "3.03", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass per 100 g solute (3)", "number": "9e+00", "significand": "9", "exponent": "0", "sigfigs": "1", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}], "supplemental": [{"property": "Total Nutrition in Solute Phase", "number": "4.785e+01", "significand": "4.785", "exponent": "1", "sigfigs": "4", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Total Nutrition in Solution Phase", "number": "1.77e+01", "significand": "1.77", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}]}, {"pntnum": 14, "conditions": [], "data": [{"property": "Percent mass fraction (1)", "number": "3.5e+01", "significand": "3.5", "exponent": "1", "sigfigs": "2", "unit": "1"}, {"property": "Mass (1) per 100 g", "number": "6.13e+01", "significand": "6.13", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass (2) per 100 g", "number": "3.07e+01", "significand": "3.07", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass per 100 g solute (3)", "number": "8e+00", "significand": "8", "exponent": "0", "sigfigs": "1", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}], "supplemental": [{"property": "Total Nutrition in Solute Phase", "number": "4.785e+01", "significand": "4.785", "exponent": "1", "sigfigs": "4", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Total Nutrition in Solution Phase", "number": "1.64e+01", "significand": "1.64", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}]}, {"pntnum": 15, "conditions": [], "data": [{"property": "Percent mass fraction (1)", "number": "3e+01", "significand": "3", "exponent": "1", "sigfigs": "1", "unit": "1"}, {"property": "Mass (1) per 100 g", "number": "6.33e+01", "significand": "6.33", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass (2) per 100 g", "number": "3.17e+01", "significand": "3.17", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Mass per 100 g solute (3)", "number": "5e+00", "significand": "5", "exponent": "0", "sigfigs": "1", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}], "supplemental": [{"property": "Total Nutrition in Solute Phase", "number": "4.794e+01", "significand": "4.794", "exponent": "1", "sigfigs": "4", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}, {"property": "Total Nutrition in Solution Phase", "number": "1.41e+01", "significand": "1.41", "exponent": "1", "sigfigs": "3", "unit": "g<sub>1</sub>/100 g<sub>2</sub>"}]}]}, {"series": 2, "title": "Part 2. The compiler has calculated the following concentration values from the data in Part 1.", "points": [{"pntnum": 1, "conditions": [], "data": [{"property": "Percent mass fraction (1)", "number": "5.1e+00", "significand": "5.1", "exponent": "0", "sigfigs": "2", "unit": "1"}, {"property": "Percent mass fraction (2)", "number": "2.05e+01", "significand": "2.05", "exponent": "1", "sigfigs": "3", "unit": "1"}, {"property": "Percent mass fraction (3)", "number": "1.44e+01", "significand": "1.44", "exponent": "1", "sigfigs": "3", "unit": "1"}, {"property": "Percent mass fraction (4)", "number": "6e+01", "significand": "6", "exponent": "1", "sigfigs": "1", "unit": "1"}], "supplemental": [{"property": "Molality (1)", "number": "1.1e+00", "significand": "1.1", "exponent": "0", "sigfigs": "2", "unit": "mol/kg"}, {"property": "Molality (2)", "number": "2.97e+00", "significand": "2.97", "exponent": "0", "sigfigs": "3", "unit": "mol/kg"}, {"property": "Molality (3)", "number": "4.0e+00", 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