potassium sulfide Thermodynamic Properties vs Temperature (CAS 1312-73-8)

Analyze how thermophysical properties change over a temperature range at a constant pressure of 1 atm.

Input Conditions

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Property Profile for potassium sulfide

Calculated properties vs. Temperature

Profile Data

Equilibrium Thermodynamic and Transport Properties of potassium sulfide at 1.01325 bar over -23.15–226.85 °C
Temperature (°C)Specific heat capacity (kJ/kg·K)Density (kg/m³)Dynamic viscosity (cP)Thermal conductivity (W/m·K)Prandtl number ()Molar volume (m³/kmol)Specific enthalpy (kJ)Specific entropy (kJ/kg·K)Phase
-23.150.6657661739.99N/A N/A N/A 0.063369-32.3344-0.118252s
-18.0480.6669891739.99N/A N/A N/A 0.063369-28.9345-0.104789s
-12.94590.6682111739.99N/A N/A N/A 0.063369-25.5284-0.0915687s
-7.843880.6694341739.99N/A N/A N/A 0.063369-22.116-0.0785815s
-2.741840.6706561739.99N/A N/A N/A 0.063369-18.6974-0.0658184s
2.36020.6718791739.99N/A N/A N/A 0.063369-15.2726-0.053271s
7.462240.6731011739.99N/A N/A N/A 0.063369-11.8415-0.0409314s
12.56430.6743241739.99N/A N/A N/A 0.063369-8.40422-0.0287922s
17.66630.6755461739.99N/A N/A N/A 0.063369-4.96068-0.0168462s
22.76840.6767691739.99N/A N/A N/A 0.063369-1.5109-0.00508663s
27.87040.677991739.99N/A N/A N/A 0.0633691.945120.00649277s
32.97240.6792081739.99N/A N/A N/A 0.0633695.407370.017898s
38.07450.6804221739.99N/A N/A N/A 0.0633698.875810.0291349s
43.17650.6816331739.99N/A N/A N/A 0.06336912.35040.0402087s
48.27860.6828411739.99N/A N/A N/A 0.06336915.83120.0511247s
53.38060.6840461739.99N/A N/A N/A 0.06336919.31820.0618878s
58.48270.6852491739.99N/A N/A N/A 0.06336922.81130.0725027s
63.58470.6864491739.99N/A N/A N/A 0.06336926.31050.0829739s
68.68670.6876481739.99N/A N/A N/A 0.06336929.81590.0933056s
73.78880.6888461739.99N/A N/A N/A 0.06336933.32730.103502s
78.89080.6900421739.99N/A N/A N/A 0.06336936.84490.113567s
83.99290.6912371739.99N/A N/A N/A 0.06336940.36860.123504s
89.09490.6924311739.99N/A N/A N/A 0.06336943.89840.133318s
94.19690.6936251739.99N/A N/A N/A 0.06336947.43420.143011s
99.2990.6948181739.99N/A N/A N/A 0.06336950.97620.152586s
104.4010.696011739.99N/A N/A N/A 0.06336954.52420.162048s
109.5030.6972021739.99N/A N/A N/A 0.06336958.07830.171398s
114.6050.6983941739.99N/A N/A N/A 0.06336961.63850.180641s
119.7070.6995861739.99N/A N/A N/A 0.06336965.20480.189778s
124.8090.7007781739.99N/A N/A N/A 0.06336968.77710.198813s
129.9110.701971739.99N/A N/A N/A 0.06336972.35560.207748s
135.0130.7031621739.99N/A N/A N/A 0.06336975.94010.216585s
140.1150.7043541739.99N/A N/A N/A 0.06336979.53070.225327s
145.2170.7055471739.99N/A N/A N/A 0.06336983.12740.233977s
150.3190.706741739.99N/A N/A N/A 0.06336986.73010.242537s
155.4210.7079331739.99N/A N/A N/A 0.06336990.3390.251008s
160.5230.7091271739.99N/A N/A N/A 0.06336993.95390.259393s
165.6260.7103211739.99N/A N/A N/A 0.06336997.5750.267694s
170.7280.7115161739.99N/A N/A N/A 0.063369101.2020.275913s
175.830.7127121739.99N/A N/A N/A 0.063369104.8350.284051s
180.9320.7139081739.99N/A N/A N/A 0.063369108.4750.292111s
186.0340.7151041739.99N/A N/A N/A 0.063369112.120.300095s
191.1360.7163021739.99N/A N/A N/A 0.063369115.7720.308003s
196.2380.71751739.99N/A N/A N/A 0.063369119.4290.315838s
201.340.7186981739.99N/A N/A N/A 0.063369123.0930.323601s
206.4420.7198981739.99N/A N/A N/A 0.063369126.7630.331294s
211.5440.7210971739.99N/A N/A N/A 0.063369130.4390.338919s
216.6460.7222981739.99N/A N/A N/A 0.063369134.1210.346476s
221.7480.7234991739.99N/A N/A N/A 0.063369137.8090.353967s
226.850.7247011739.99N/A N/A N/A 0.063369141.5040.361394s

Property Profiles for potassium sulfide

Heat Capacity (Cp) vs Temperature

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Density vs Temperature

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Thermodynamic Property Profile at Constant Pressure

This page presents the temperature-dependent thermodynamic and transport properties of potassium sulfide (CAS 1312-73-8) calculated at a constant pressure of 1 atm (101325 Pa) over the temperature range 250-500 K.

The properties shown - specific heat capacity (Cp), density (ρ), dynamic viscosity (μ), thermal conductivity (k), Prandtl number (Pr), molar volume (Vm), specific enthalpy (H), and specific entropy (S) - are among the most commonly used parameters in chemical engineering calculations, process simulation, and thermal system design.

All values are generated programmatically using validated thermodynamic correlations and equations of state and represent equilibrium properties at the specified pressure.


Understanding the Property Trends

  • Specific heat capacity (Cp) indicates the amount of energy required to raise the temperature of potassium sulfide and is critical for energy balance and heat-exchanger design.
  • Density (ρ) and molar volume (Vm) describe volumetric behavior and are required for flow calculations, equipment sizing, and storage design.
  • Dynamic viscosity (μ) governs fluid flow resistance, influencing Reynolds number and pressure drop.
  • Thermal conductivity (k) and Prandtl number (Pr) are essential inputs for convective heat-transfer correlations.
  • Specific enthalpy (H) and specific entropy (S) are fundamental thermodynamic properties used in process modeling, compression, and expansion analysis.

Property trends with temperature may vary depending on molecular structure, intermolecular interactions, and phase stability.


Engineering Applications

The temperature-dependent properties of potassium sulfide at atmospheric pressure are commonly required in:

  • Heat exchanger and reactor design
  • Process simulation and thermodynamic modeling
  • Fluid flow and pressure-drop calculations
  • Energy balance and equipment sizing
  • Chemical engineering education and research

These profiles are particularly useful when evaluating system performance over a wide operating temperature range under near-ambient pressure conditions.


Frequently Asked Questions

At what pressure are these properties calculated?
All properties on this page are calculated at a constant pressure of 1 atm (101325 Pa).

Can these values be used in process simulation software?
Yes. The data is suitable for preliminary design, validation, and educational use. For licensed simulators, vendor-specific property packages should be referenced.

Can I change the pressure or temperature range?
Yes. Use the interactive controls above to generate custom property profiles at different pressures or temperature ranges.


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