6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione Thermodynamic Properties vs Temperature (CAS 5617-70-9)

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

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Property Profile for 6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione

Calculated properties vs. Temperature

Profile Data

Equilibrium Thermodynamic and Transport Properties of 6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione 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
-23.150.9687251232.54N/A N/A N/A 0.138058-50.8957-0.185722s
-18.0480.9872991229.98N/A N/A N/A 0.138346-45.9059-0.165964s
-12.94591.005921227.42N/A N/A N/A 0.138635-40.8212-0.146229s
-7.843881.02461224.86N/A N/A N/A 0.138925-35.6413-0.126515s
-2.741841.043331222.29N/A N/A N/A 0.139216-30.366-0.106821s
2.36021.062111219.73N/A N/A N/A 0.139508-24.995-0.0871437s
7.462241.080951217.17N/A N/A N/A 0.139802-19.528-0.0674826s
12.56431.099841214.61N/A N/A N/A 0.140096-13.9647-0.0478358s
17.66631.118791212.05N/A N/A N/A 0.140392-8.30499-0.028202s
22.76841.137791209.49N/A N/A N/A 0.14069-2.54843-0.00857957s
27.87041.156851206.93N/A N/A N/A 0.1409883.305230.0110327s
32.97241.175961204.37N/A N/A N/A 0.1412889.256260.0306361s
38.07451.195131201.8N/A N/A N/A 0.14158915.3050.0502319s
43.17651.214361199.24N/A N/A N/A 0.14189221.45160.0698212s
48.27861.233651196.68N/A N/A N/A 0.14219527.69650.0894052s
53.38061.252991194.12N/A N/A N/A 0.142534.03990.108985s
58.48271.272391191.56N/A N/A N/A 0.14280740.48220.128561s
63.58471.291841189N/A N/A N/A 0.14311447.02360.148136s
68.68671.668021057.94N/A 0.115894N/A 0.160843131.8970.399042l
73.78881.68511053.73N/A 0.115146N/A 0.161486140.4510.42388l
78.89081.701891049.49N/A 0.114398N/A 0.162139149.0910.448604l
83.99291.718371045.21N/A 0.11365N/A 0.162802157.8170.47321l
89.09491.734561040.91N/A 0.112902N/A 0.163475166.6250.4977l
94.19691.750461036.57N/A 0.112155N/A 0.164159175.5160.522071l
99.2991.766051032.2N/A 0.111407N/A 0.164854184.4870.546323l
104.4011.781351027.8N/A 0.110659N/A 0.16556193.5360.570456l
109.5031.796351023.37N/A 0.109911N/A 0.166277202.6630.594467l
114.6051.811051018.9N/A 0.109163N/A 0.167006211.8660.618358l
119.7071.825461014.4N/A 0.108415N/A 0.167748221.1430.642126l
124.8091.839571009.86N/A 0.107668N/A 0.168502230.4920.665772l
129.9111.853381005.28N/A 0.10692N/A 0.169269239.9130.689295l
135.0131.866891000.66N/A 0.106172N/A 0.17005249.4040.712693l
140.1151.88011996.01N/A 0.105424N/A 0.170844258.9630.735967l
145.2171.89303991.316N/A 0.104676N/A 0.171653268.5880.759115l
150.3191.90565986.581N/A 0.103928N/A 0.172477278.2790.782138l
155.4211.91798981.803N/A 0.10318N/A 0.173316288.0330.805035l
160.5231.93001976.981N/A 0.102432N/A 0.174172297.850.827804l
165.6261.94174972.115N/A 0.101684N/A 0.175044307.7270.850446l
170.7281.95317967.203N/A 0.100937N/A 0.175933317.6630.872961l
175.831.96431962.243N/A 0.100189N/A 0.17684327.6560.895347l
180.9321.97515957.234N/A 0.0994406N/A 0.177765337.7060.917604l
186.0341.98569952.175N/A 0.0986927N/A 0.178709347.8110.939732l
191.1361.99594947.063N/A 0.0979447N/A 0.179674357.9680.96173l
196.2382.00588941.898N/A 0.0971968N/A 0.180659368.1770.983599l
201.342.01553936.677N/A 0.0964488N/A 0.181666378.4361.00534l
206.4422.02489931.398N/A 0.0957008N/A 0.182696388.7431.02694l
211.5442.03394926.06N/A 0.0949528N/A 0.183749399.0971.04842l
216.6462.0427920.661N/A 0.0942048N/A 0.184827409.4971.06976l
221.7482.05116915.197N/A 0.0934568N/A 0.18593419.9411.09098l
226.852.05933909.667N/A 0.0927088N/A 0.18706430.4271.11205l

Property Profiles for 6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione

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 6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione (CAS 5617-70-9) 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 6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione 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 6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione 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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