{
  "ALIASES": [
    "R143A"
  ], 
  "ANCILLARIES": {
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        4.089367721905477, 
        -0.03467903598286674, 
        0.00016182371224777957, 
        -4.4296759388889814e-07, 
        6.602374168582735e-10, 
        -4.160569134008913e-13
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        -0.0028678469822105003
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      "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", 
      "max_abs_error": 209.52005326912513, 
      "max_abs_error_units": "J/mol", 
      "type": "rational_polynomial"
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        1326.0522194794796, 
        -19.71407778313807, 
        0.14704066387286768, 
        -0.0006421271964123916, 
        1.6568524151751872e-06, 
        -2.347274875282889e-09, 
        1.4144862414051698e-12
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        -0.002865860531221209
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      "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", 
      "max_abs_error": 470.6713851085017, 
      "max_abs_error_units": "J/mol", 
      "type": "rational_polynomial"
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      "Tmax": 345.85699999999935, 
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      "description": "p' = pc*exp(Tc/T*sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 0.021732921956241213, 
      "n": [
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        0.38770586469190393, 
        -6.752272877216631, 
        -0.5997730155885828, 
        -3.2285390578912927, 
        91.83265252025414
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      "reducing_value": 3761000.0, 
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        0.768, 
        0.952, 
        2.711, 
        4.226, 
        18.933
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      "type": "pL", 
      "using_tau_r": true
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      "Tmax": 345.85699999999935, 
      "Tmin": 161.34, 
      "description": "p'' = pc*exp(Tc/T*sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 0.021749642310531225, 
      "n": [
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        -6.510885016909917, 
        0.12842302942065706, 
        -1.0754739908073552, 
        -2.8675285594067415, 
        20.271941975061065
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      "reducing_value": 3761000.0, 
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        0.968, 
        1.363, 
        2.999, 
        4.469, 
        15.514
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      "type": "pV", 
      "using_tau_r": true
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    "rhoL": {
      "T_r": 345.857, 
      "Tmax": 345.85699999999935, 
      "Tmin": 161.34, 
      "description": "rho' = rhoc*(1+sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 0.6288812047839043, 
      "n": [
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        -0.254772168947589, 
        97.84474908938734, 
        -105.1304757408368, 
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        -116968.31229953805
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        4.049, 
        16.046, 
        19.95
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      "type": "rhoLnoexp", 
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      "Tmax": 345.85699999999935, 
      "Tmin": 161.34, 
      "description": "rho'' = rhoc*exp(Tc/T*sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 0.4817150212059307, 
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        4.25938169894919, 
        -4.417810181991655, 
        23.70234830311772, 
        -50.98632502013336, 
        29.108143754921628
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      "reducing_value": 5128.45, 
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        1.058, 
        3.611, 
        4.279, 
        5.478
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      "type": "rhoV", 
      "using_tau_r": true
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        3.8850041688140986, 
        -0.024308673303873034, 
        9.8173408480495e-05, 
        -2.2953753268422892e-07, 
        2.343475303278538e-10, 
        5.588150767459254e-14, 
        -2.2386938221238185e-16
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      "B": [
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        -0.002867493967742772
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      "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy", 
      "max_abs_error": 0.6127443921908036, 
      "max_abs_error_units": "J/mol/K", 
      "type": "rational_polynomial"
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        -13.071667620476463, 
        0.09506418014157958, 
        -0.00039125309343936176, 
        8.9206688504933e-07, 
        -9.094209993783015e-10, 
        -1.0956085391132273e-13, 
        6.971141896013153e-16
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      "B": [
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        -0.0028654458077265453
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      "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy", 
      "max_abs_error": 1.3777903061728565, 
      "max_abs_error_units": "J/mol/K", 
      "type": "rational_polynomial"
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    "surface_tension": {
      "BibTeX": "Mulero-JPCRD-2014", 
      "Tc": 345.857, 
      "a": [
        0.0537
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      "description": "sigma = sum(a_i*(1-T/Tc)^n_i)", 
      "n": [
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  }, 
  "CAS": "420-46-2", 
  "ENVIRONMENTAL": {
    "ASHRAE34": "A2", 
    "FH": 1, 
    "GWP100": 4470.0, 
    "GWP20": 5890.0, 
    "GWP500": 1590.0, 
    "HH": 1, 
    "Name": "R143a", 
    "ODP": -1.0, 
    "PH": 0
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  "EOS": [
    {
      "BibTeX_CP0": "", 
      "BibTeX_EOS": "LemmonJacobsen-JPCRD-2000", 
      "STATES": {
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          "T": 380.44270000000006, 
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          "hmolar": 23324.277565015465, 
          "hmolar_units": "J/mol", 
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          "p_units": "Pa", 
          "rhomolar": 4615.605, 
          "rhomolar_units": "mol/m^3", 
          "smolar": -33.01685231827065, 
          "smolar_units": "J/mol/K"
        }, 
        "reducing": {
          "T": 345.857, 
          "T_units": "K", 
          "p": 3761000, 
          "p_units": "Pa", 
          "rhomolar": 5128.45, 
          "rhomolar_units": "mol/m^3"
        }, 
        "sat_min_liquid": {
          "T": 161.34, 
          "T_units": "K", 
          "p": 1.074945443137482, 
          "p_units": "Pa", 
          "rhomolar": 15832.104698511099, 
          "rhomolar_units": "mol/m^3"
        }, 
        "sat_min_vapor": {
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          "T_units": "K", 
          "p": 1.074945443137482, 
          "p_units": "Pa", 
          "rhomolar": 0.803616507488138, 
          "rhomolar_units": "mol/m^3"
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      "T_max": 450, 
      "T_max_units": "K", 
      "Ttriple": 161.34, 
      "Ttriple_units": "K", 
      "accentric": 0.261489646224, 
      "accentric_units": "-", 
      "alpha0": [
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          "a1": 5.903087, 
          "a2": 7.307253, 
          "type": "IdealGasHelmholtzLead"
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        {
          "a": -1, 
          "type": "IdealGasHelmholtzLogTau"
        }, 
        {
          "T0": 273.15, 
          "Tc": 345.857, 
          "c": [
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          "t": [
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          "type": "IdealGasHelmholtzCP0PolyT"
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        {
          "n": [
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            3.7515
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          "t": [
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            2.379596191489546
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          "type": "IdealGasHelmholtzPlanckEinstein"
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        {
          "a1": -20.4128125563124, 
          "a2": 4.0000801727654, 
          "reference": "IIR", 
          "type": "IdealGasHelmholtzEnthalpyEntropyOffset"
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      "alphar": [
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          "d": [
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            1, 
            2, 
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            1, 
            3, 
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            7, 
            1, 
            2, 
            2, 
            3, 
            4, 
            2, 
            3, 
            5
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          "l": [
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            1, 
            1, 
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            1, 
            2, 
            2, 
            2, 
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            3, 
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          "n": [
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          "t": [
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            22, 
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          "type": "ResidualHelmholtzPower"
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      "gas_constant": 8.314472, 
      "gas_constant_units": "J/mol/K", 
      "molar_mass": 0.08404099999999999, 
      "molar_mass_units": "kg/mol", 
      "p_max": 150000000, 
      "p_max_units": "Pa", 
      "pseudo_pure": false
    }
  ], 
  "NAME": "R143a", 
  "REFPROP_NAME": "R143A", 
  "STATES": {
    "critical": {
      "T": 345.857, 
      "T_units": "K", 
      "p": 3761000.0, 
      "p_units": "Pa", 
      "rhomolar": 5128.45, 
      "rhomolar_units": "mol/m^3"
    }, 
    "triple_liquid": {
      "T": 161.34, 
      "T_units": "K", 
      "p": 1.074945443137482, 
      "p_units": "Pa", 
      "rhomolar": 15832.104698511099, 
      "rhomolar_units": "mol/m^3"
    }, 
    "triple_vapor": {
      "T": 161.34, 
      "T_units": "K", 
      "p": 1.074945443137482, 
      "p_units": "Pa", 
      "rhomolar": 0.803616507488138, 
      "rhomolar_units": "mol/m^3"
    }
  }
}