dihydrogen tetrasulfide Thermodynamic Properties vs Temperature (CAS 13845-25-5)

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

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Property Profile for dihydrogen tetrasulfide

Calculated properties vs. Temperature

Profile Data

Equilibrium Thermodynamic and Transport Properties of dihydrogen tetrasulfide 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
-23.150.524706627.717N/A 0.133681N/A 0.207539-27.7492-0.101249l
-18.0480.536143641.713N/A 0.132802N/A 0.203013-25.0429-0.0905327l
-12.94590.54739655.517N/A 0.131922N/A 0.198737-22.2787-0.0798044l
-7.843880.558447669.13N/A 0.131043N/A 0.194695-19.4576-0.0690678l
-2.741840.569316682.548N/A 0.130163N/A 0.190867-16.5806-0.0583269l
2.36020.579995695.769N/A 0.129283N/A 0.18724-13.6486-0.0475854l
7.462240.590484708.793N/A 0.128404N/A 0.1838-10.6626-0.0368468l
12.56430.600785721.618N/A 0.127524N/A 0.180533-7.62353-0.0261143l
17.66630.610896734.24N/A 0.126644N/A 0.177429-4.53242-0.0153912l
22.76840.620817746.66N/A 0.125765N/A 0.174478-1.39022-0.00468033l
27.87040.63055758.874N/A 0.124885N/A 0.171671.802120.0060154l
32.97240.640093770.881N/A 0.124005N/A 0.1689965.043640.0166934l
38.07450.649446782.678N/A 0.123126N/A 0.1664498.333360.027351l
43.17650.65861794.264N/A 0.122246N/A 0.16402111.67030.0379859l
48.27860.667585805.637N/A 0.121366N/A 0.16170515.05350.0485957l
53.38060.676371816.794N/A 0.120487N/A 0.15949718.48210.0591784l
58.48270.684967827.733N/A 0.119607N/A 0.15738921.9550.0697316l
63.58470.693374838.452N/A 0.118727N/A 0.15537725.47120.0802536l
68.68670.701591848.949N/A 0.117848N/A 0.15345529.02990.0907423l
73.78880.709619859.221N/A 0.116968N/A 0.15162132.630.101196l
78.89080.717458869.267N/A 0.116088N/A 0.14986936.27060.111613l
83.99290.725107879.082N/A 0.115209N/A 0.14819539.95070.121991l
89.09490.732567888.666N/A 0.114329N/A 0.14659743.66930.13233l
94.19690.739838898.015N/A 0.113449N/A 0.14507147.42550.142627l
99.2990.746919907.126N/A 0.11257N/A 0.14361451.21840.15288l
104.4010.753811915.998N/A 0.11169N/A 0.14222355.04680.16309l
109.5030.760514924.626N/A 0.11081N/A 0.14089658.910.173253l
114.6050.767027933.01N/A 0.10993N/A 0.1396362.80690.18337l
119.7070.773351941.144N/A 0.109051N/A 0.13842366.73650.193438l
124.8090.779486949.027N/A 0.108171N/A 0.13727370.69790.203456l
129.9110.785431956.655N/A 0.107291N/A 0.13617974.69010.213424l
135.0130.791187964.025N/A 0.106412N/A 0.13513778.71220.22334l
140.1150.796754971.134N/A 0.105532N/A 0.13414882.76310.233203l
145.2170.802131977.979N/A 0.104652N/A 0.13320986.8420.243013l
150.3190.807319984.556N/A 0.103772N/A 0.13231990.94780.252767l
155.4210.812317990.861N/A 0.102893N/A 0.13147795.07960.262466l
160.5230.817126996.891N/A 0.102013N/A 0.13068299.23640.272108l
165.6260.8217461002.64N/A 0.101133N/A 0.129933103.4170.281692l
170.7280.8261761008.11N/A 0.100253N/A 0.129228107.6210.291218l
175.830.8304171013.29N/A 0.0993737N/A 0.128567111.8470.300684l
180.9320.8344691018.18N/A 0.098494N/A 0.12795116.0950.310091l
186.0340.8383321022.78N/A 0.0976142N/A 0.127375120.3620.319436l
191.1360.8420051027.07N/A 0.0967345N/A 0.126842124.6490.32872l
196.2380.8454881031.06N/A 0.0958547N/A 0.126351128.9540.337942l
201.340.8487831034.74N/A 0.0949749N/A 0.125901133.2760.3471l
206.4420.8518871038.11N/A 0.0940952N/A 0.125493137.6140.356195l
211.5440.8548031041.16N/A 0.0932154N/A 0.125125141.9680.365225l
216.6460.8575291043.89N/A 0.0923356N/A 0.124799146.3360.374191l
221.7480.8600661046.28N/A 0.0914558N/A 0.124513150.7180.38309l
226.850.8624141048.34N/A 0.0905761N/A 0.124268155.1120.391924l

Property Profiles for dihydrogen tetrasulfide

Heat Capacity (Cp) vs Temperature

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Density vs Temperature

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Thermal Conductivity vs Temperature

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Thermodynamic Property Profile at Constant Pressure

This page presents the temperature-dependent thermodynamic and transport properties of dihydrogen tetrasulfide (CAS 13845-25-5) 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 dihydrogen tetrasulfide 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 dihydrogen tetrasulfide 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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