1-piperazineethanamine Thermodynamic Properties vs Temperature (CAS 140-31-8)

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 1-piperazineethanamine

Calculated properties vs. Temperature

Profile Data

Equilibrium Thermodynamic and Transport Properties of 1-piperazineethanamine 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
-23.151.309051122.65N/A N/A N/A 0.115088-256.315-0.983582s
-18.0481.74543999.5910.8204760.156059.177130.129256-79.1588-0.286364l
-12.94591.76804996.9690.8067540.155059.199420.129596-70.1958-0.251577l
-7.843881.79044994.3080.7931480.1540519.218290.129943-61.118-0.217028l
-2.741841.81265991.6080.7796570.1530519.233790.130297-51.9263-0.182712l
2.36021.83466988.8680.7662830.1520529.245950.130658-42.6219-0.148624l
7.462241.85646986.0880.7530240.1510539.25480.131026-33.2057-0.11476l
12.56431.87807983.2670.7398820.1500539.260390.131402-23.6787-0.0811148l
17.66631.89948980.4060.7268550.1490549.262760.131786-14.042-0.0476845l
22.76841.9207977.5030.7139440.1480549.261930.132177-4.29658-0.014465l
27.87041.94171974.5590.7011490.1470559.257950.1325765.556580.0185476l
32.97241.96252971.5730.688470.1460569.250860.13298415.51650.0513569l
38.07451.98314968.5440.6759060.1450569.240680.133425.5820.0839663l
43.17652.00356965.4710.6634590.1440579.227470.13382435.75220.116379l
48.27862.02378962.3560.6511280.1430579.211260.13425746.02610.148598l
53.38062.0438959.1960.6389120.1420589.192090.134756.40270.180627l
58.48272.06362955.9910.6268130.1410589.169990.13515166.88090.212468l
63.58472.08324952.7420.6148290.1400599.1450.13561277.45970.244124l
68.68672.10266949.4460.6029620.1390599.117160.13608388.13810.275597l
73.78882.12189946.1050.591210.138069.086510.13656398.91510.306891l
78.89082.14092942.7170.5795740.137069.053090.137054109.790.338006l
83.99292.15974939.2810.5680540.1360619.016930.137556120.7610.368947l
89.09492.17837935.7980.5566490.1350618.978070.138068131.8280.399714l
94.19692.1968932.2660.5453610.1340628.936550.138591142.9890.43031l
99.2992.21503928.6850.5341880.1330628.892420.139125154.2440.460737l
104.4012.23307925.0540.523130.1320638.845690.139671165.5910.490997l
109.5032.2509921.3720.5121890.1310638.796430.140229177.030.521091l
114.6052.26854917.6390.5013630.1300638.744650.1408188.5590.551021l
119.7072.28597913.8540.4906520.1290648.69040.141383200.1780.58079l
124.8092.30321910.0170.4800570.1280648.633720.141979211.8850.610398l
129.9112.32025906.1260.4695760.1270658.574640.142589223.6790.639847l
135.0132.33709902.1810.4592110.1260658.513210.143212235.560.669139l
140.1152.35373898.180.4489610.1250658.449450.14385247.5270.698274l
145.2172.37017894.1240.4388260.1240668.38340.144503259.5780.727256l
150.3192.38642890.010.4288050.1230668.31510.145171271.7120.756084l
155.4212.40246885.8390.4188980.1220668.244580.145854283.9290.78476l
160.5232.41831881.6090.4091050.1210678.171880.146554296.2270.813286l
165.6262.43396877.3180.3994270.1200678.097040.147271308.6050.841662l
170.7282.44941872.9670.3898610.1190678.020070.148005321.0630.86989l
175.832.46466868.5530.3804090.1180687.941030.148757333.5990.897971l
180.9322.47971864.0760.371070.1170687.859920.149528346.2120.925905l
186.0342.49456859.5340.3618430.1160687.77680.150318358.9010.953695l
191.1362.50922854.9250.3527270.1150697.691670.151128371.6660.98134l
196.2382.52367850.2490.3437230.1140697.604570.15196384.5051.00884l
201.342.53793845.5030.3348290.1130697.515520.152812397.4181.0362l
206.4422.55199840.6870.3260450.1120697.424540.153688410.4021.06342l
211.5442.56585835.7970.3173680.111077.331610.154587423.4581.0905l
216.6462.044993.214710.01006080.02314780.88882240.1914813.3891.87392g
221.7482.062233.181560.01017610.02364990.88734240.61823.9231.89532g
226.852.079333.14910.01029050.02415640.88578541.0287834.5431.91667g

Property Profiles for 1-piperazineethanamine

Heat Capacity (Cp) vs Temperature

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Density vs Temperature

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Thermal Conductivity vs Temperature

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Viscosity vs Temperature

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Thermodynamic Property Profile at Constant Pressure

This page presents the temperature-dependent thermodynamic and transport properties of 1-piperazineethanamine (CAS 140-31-8) 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 1-piperazineethanamine 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 1-piperazineethanamine 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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