Chemical Properties of potassium chloride (CAS 7447-40-7)

potassium chloride

InChI
InChI=1S/ClH.K/h1H;/q;+1/p-1
InChI Key
WCUXLLCKKVVCTQ-UHFFFAOYSA-M
Formula
ClK
SMILES
[Cl-].[K+]
Molecular Weight1
74.55
CAS
7447-40-7
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Physical Properties

Property Value Unit Source
EA [0.58; 1.27] eV Show Hide
EA 0.58 ± 0.01 eV NIST
EA 0.63 eV NIST
EA 1.27 eV NIST
IE [8.00; 10.50] eV Show Hide
IE 10.50 eV NIST
IE 8.30 eV NIST
IE 8.40 ± 0.10 eV NIST
IE 8.40 ± 0.10 eV NIST
IE 10.10 eV NIST
IE 8.00 ± 0.30 eV NIST
IE 8.70 eV NIST
Tfus 1044.15 K Thermodynamics of the NaCl-KCl system
Ttriple 1045.15 K Fusion characterization of biomass ash

Cheméo can also estimate Normal Boiling Point Temperature, Critical Temperature, Critical Pressure, Critical Volume, Enthalpy of formation at standard conditions, Enthalpy of vaporization at standard conditions, Standard Gibbs free energy of formation, Acentric Factor, Log10 of Water solubility in mol/l for this compound, but they fall outside the models' validated range, so they are not shown here. Open the prediction tool to compute them on demand.

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
ρs [1793.60; 1805.80] kg/m3 [973.00; 1043.00] Show Hide
ρs 1805.80 kg/m3 973.00 Density of Crystalline Alkali Chlorides and Their Eutectic Mixtures Near the Melting Point
ρs 1803.60 kg/m3 983.00 Density of Crystalline Alkali Chlorides and Their Eutectic Mixtures Near the Melting Point
ρs 1800.60 kg/m3 993.00 Density of Crystalline Alkali Chlorides and Their Eutectic Mixtures Near the Melting Point
ρs 1797.10 kg/m3 1003.00 Density of Crystalline Alkali Chlorides and Their Eutectic Mixtures Near the Melting Point
ρs 1794.50 kg/m3 1013.00 Density of Crystalline Alkali Chlorides and Their Eutectic Mixtures Near the Melting Point
ρs 1793.60 kg/m3 1023.00 Density of Crystalline Alkali Chlorides and Their Eutectic Mixtures Near the Melting Point
ρs 1793.60 kg/m3 1033.00 Density of Crystalline Alkali Chlorides and Their Eutectic Mixtures Near the Melting Point
ρs 1796.60 kg/m3 1043.00 Density of Crystalline Alkali Chlorides and Their Eutectic Mixtures Near the Melting Point
γ 0.09 N/m 1230.00 Surface tension of light rare earth fluoride molten salts electrolytesystem

Correlations

Property Value Unit Temperature (K) Source
Cp,gas [38.90; 41.95] J/mol×K [2000.00; 6000.00] NIST Show Hide
EquationY = A + B·t + C·t² + D·t³ + E/t², t = T/1000
Y is Cp,gas in J/mol×K, T in K
Coefficient A3.73727e+01
Coefficient B7.92353e-01
Coefficient C-9.70000e-03
Coefficient D8.27000e-04
Coefficient E-9.95570e-02
ReferenceChase, 1998
Temperature range, min.2000.00
Temperature range, max.6000.00
Cp,gas 38.90 J/mol×K 2000.00 Calculated Property
Cp,gas 39.25 J/mol×K 2444.44 Calculated Property
Cp,gas 39.59 J/mol×K 2888.89 Calculated Property
Cp,gas 39.93 J/mol×K 3333.33 Calculated Property
Cp,gas 40.27 J/mol×K 3777.78 Calculated Property
Cp,gas 40.60 J/mol×K 4222.22 Calculated Property
Cp,gas 40.94 J/mol×K 4666.67 Calculated Property
Cp,gas 41.28 J/mol×K 5111.11 Calculated Property
Cp,gas 41.61 J/mol×K 5555.56 Calculated Property
Cp,gas 41.95 J/mol×K 6000.00 Calculated Property
Property Value Unit Temperature (K) Source
Cp,liquid [73.60; 73.60] J/mol×K [1044.00; 2000.00] NIST Show Hide
EquationY = A + B·t + C·t² + D·t³ + E/t², t = T/1000
Y is Cp,liquid in J/mol×K, T in K
Coefficient A7.35970e+01
Coefficient B0.00000e+00
Coefficient C0.00000e+00
Coefficient D0.00000e+00
Coefficient E0.00000e+00
ReferenceChase, 1998
Temperature range, min.1044.00
Temperature range, max.2000.00
Cp,liquid 73.60 J/mol×K 1044.00 Calculated Property
Cp,liquid 73.60 J/mol×K 1150.22 Calculated Property
Cp,liquid 73.60 J/mol×K 1256.44 Calculated Property
Cp,liquid 73.60 J/mol×K 1362.67 Calculated Property
Cp,liquid 73.60 J/mol×K 1468.89 Calculated Property
Cp,liquid 73.60 J/mol×K 1575.11 Calculated Property
Cp,liquid 73.60 J/mol×K 1681.33 Calculated Property
Cp,liquid 73.60 J/mol×K 1787.56 Calculated Property
Cp,liquid 73.60 J/mol×K 1893.78 Calculated Property
Cp,liquid 73.60 J/mol×K 2000.00 Calculated Property
Property Value Unit Temperature (K) Source
Cp,solid [51.29; 62.91] J/mol×K [298.00; 900.00] NIST Show Hide
EquationY = A + B·t + C·t² + D·t³ + E/t², t = T/1000
Y is Cp,solid in J/mol×K, T in K
Coefficient A3.54160e+01
Coefficient B7.00347e+01
Coefficient C-9.13823e+01
Coefficient D5.25243e+01
Coefficient E1.53460e-01
ReferenceChase, 1998
Temperature range, min.298.00
Temperature range, max.900.00
Cp,solid 51.29 J/mol×K 298.00 Calculated Property
Cp,solid 52.51 J/mol×K 364.89 Calculated Property
Cp,solid 53.67 J/mol×K 431.78 Calculated Property
Cp,solid 54.75 J/mol×K 498.67 Calculated Property
Cp,solid 55.78 J/mol×K 565.56 Calculated Property
Cp,solid 56.83 J/mol×K 632.44 Calculated Property
Cp,solid 57.98 J/mol×K 699.33 Calculated Property
Cp,solid 59.32 J/mol×K 766.22 Calculated Property
Cp,solid 60.93 J/mol×K 833.11 Calculated Property
Cp,solid 62.91 J/mol×K 900.00 Calculated Property
Cp,solid [62.90; 69.21] J/mol×K [900.00; 1044.00] NIST Show Hide
EquationY = A + B·t + C·t² + D·t³ + E/t², t = T/1000
Y is Cp,solid in J/mol×K, T in K
Coefficient A-7.17385e+02
Coefficient B1.24786e+03
Coefficient C-7.08514e+02
Coefficient D1.41444e+02
Coefficient E1.03671e+02
ReferenceChase, 1998
Temperature range, min.900.00
Temperature range, max.1044.00
Cp,solid 62.90 J/mol×K 900.00 Calculated Property
Cp,solid 63.44 J/mol×K 916.00 Calculated Property
Cp,solid 64.05 J/mol×K 932.00 Calculated Property
Cp,solid 64.71 J/mol×K 948.00 Calculated Property
Cp,solid 65.40 J/mol×K 964.00 Calculated Property
Cp,solid 66.13 J/mol×K 980.00 Calculated Property
Cp,solid 66.89 J/mol×K 996.00 Calculated Property
Cp,solid 67.65 J/mol×K 1012.00 Calculated Property
Cp,solid 68.43 J/mol×K 1028.00 Calculated Property
Cp,solid 69.21 J/mol×K 1044.00 Calculated Property
Property Value Unit Temperature (K) Source
Pvap [0.05; 17810.83] kPa [1044.00; 3470.00] The Yaws Handbook of Vapor Pressure Show Hide
Equationln(Y) = A + B/(T + C)
Y is Pvap in kPa, T in K
Coefficient A1.39492e+01
Coefficient B-1.33788e+04
Coefficient C-2.55170e+02
Temperature range, min.1044.00
Temperature range, max.3470.00
Pvap 0.05 kPa 1044.00 Calculated Property
Pvap 3.70 kPa 1313.56 Calculated Property
Pvap 48.15 kPa 1583.11 Calculated Property
Pvap 263.56 kPa 1852.67 Calculated Property
Pvap 883.08 kPa 2122.22 Calculated Property
Pvap 2180.80 kPa 2391.78 Calculated Property
Pvap 4398.10 kPa 2661.33 Calculated Property
Pvap 7700.74 kPa 2930.89 Calculated Property
Pvap 12169.49 kPa 3200.44 Calculated Property
Pvap 17810.83 kPa 3470.00 Calculated Property
Pvap [0.46; 18.16] kPa [1170.00; 1466.00] NIST Show Hide
Equationln(Y) = A + B/(T + C)
Y is Pvap in kPa, T in K
Coefficient A1.52355e+01
Coefficient B-1.59128e+04
Coefficient C-1.76083e+02
ReferenceBarchuk and Dubovoi, 1973
Temperature range, min.1170.00
Temperature range, max.1466.00
Pvap 0.46 kPa 1170.00 Calculated Property
Pvap 0.77 kPa 1202.89 Calculated Property
Pvap 1.24 kPa 1235.78 Calculated Property
Pvap 1.96 kPa 1268.67 Calculated Property
Pvap 2.99 kPa 1301.56 Calculated Property
Pvap 4.47 kPa 1334.44 Calculated Property
Pvap 6.54 kPa 1367.33 Calculated Property
Pvap 9.36 kPa 1400.22 Calculated Property
Pvap 13.15 kPa 1433.11 Calculated Property
Pvap 18.16 kPa 1466.00 Calculated Property
Pvap [0.13; 101.02] kPa [1094.00; 1680.00] NIST Show Hide
Equationln(Y) = A + B/(T + C)
Y is Pvap in kPa, T in K
Coefficient A1.56170e+01
Coefficient B-1.71328e+04
Coefficient C-1.22709e+02
ReferenceStull, 1947
Temperature range, min.1094.00
Temperature range, max.1680.00
Pvap 0.13 kPa 1094.00 Calculated Property
Pvap 0.40 kPa 1159.11 Calculated Property
Pvap 1.07 kPa 1224.22 Calculated Property
Pvap 2.54 kPa 1289.33 Calculated Property
Pvap 5.51 kPa 1354.44 Calculated Property
Pvap 11.09 kPa 1419.56 Calculated Property
Pvap 20.85 kPa 1484.67 Calculated Property
Pvap 37.02 kPa 1549.78 Calculated Property
Pvap 62.50 kPa 1614.89 Calculated Property
Pvap 101.02 kPa 1680.00 Calculated Property

Mixtures

Find more mixtures with potassium chloride.

Sources

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