sulfur dioxide Thermodynamic Properties vs Temperature (CAS 7446-09-5)

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

Related Calculators for sulfur dioxide

Pure Component Properties

Get properties at a single T and P.

Properties vs. Pressure

Analyze properties at constant temperature.

Input Conditions

Define the chemical and range for the property profile.

Property Profile for sulfur dioxide

Calculated properties vs. Temperature

Profile Data

Equilibrium Thermodynamic and Transport Properties of sulfur dioxide 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
-23.15	1.35815	1495.69	0.48208	0.189284	3.459	0.0428324	-428.865	-1.67006	l
-18.048	1.35881	1482.52	0.454108	0.186952	3.30054	0.0432127	-421.935	-1.62609	l
-12.9459	1.36013	1469.27	0.428506	0.184565	3.15781	0.0436025	-414.999	-1.58237	l
-7.84388	0.604154	2.94271	0.0113716	0.00904489	0.759568	21.7703	-20.4252	-0.0725637	g
-2.74184	0.607021	2.88719	0.0116004	0.00931173	0.756218	22.189	-17.287	-0.0608474	g
2.3602	0.60989	2.83372	0.0118317	0.00958053	0.7532	22.6076	-14.1362	-0.049304	g
7.46224	0.612762	2.7822	0.012064	0.00985131	0.750396	23.0263	-10.9727	-0.0379268	g
12.5643	0.615636	2.73252	0.0122961	0.0101241	0.747715	23.445	-7.79641	-0.0267093	g
17.6663	0.618511	2.68458	0.0125273	0.0103988	0.745112	23.8636	-4.60714	-0.0156455	g
22.7684	0.621387	2.63829	0.0127578	0.0106756	0.742582	24.2823	-1.40482	-0.00472951	g
27.8704	0.624262	2.59358	0.0129879	0.0109545	0.740138	24.7009	1.81064	0.00604387	g
32.9724	0.627136	2.55035	0.0132179	0.0112354	0.737793	25.1196	5.03934	0.0166798	g
38.0745	0.630008	2.50854	0.013448	0.0115185	0.735546	25.5383	8.28133	0.0271829	g
43.1765	0.632877	2.46808	0.0136782	0.0118037	0.733382	25.9569	11.5367	0.0375579	g
48.2786	0.635742	2.42891	0.0139081	0.0120911	0.731282	26.3756	14.8054	0.0478088	g
53.3806	0.638602	2.39095	0.0141376	0.0123807	0.729225	26.7942	18.0876	0.0579399	g
58.4827	0.641456	2.35417	0.0143665	0.0126725	0.727202	27.2129	21.3833	0.0679548	g
63.5847	0.644303	2.3185	0.0145949	0.0129666	0.725211	27.6316	24.6925	0.0778573	g
68.6867	0.647142	2.2839	0.0148228	0.0132629	0.723254	28.0502	28.0152	0.0876506	g
73.7888	0.649972	2.25031	0.0150505	0.0135616	0.721333	28.4689	31.3514	0.0973382	g
78.8908	0.652791	2.2177	0.015278	0.0138625	0.719448	28.8875	34.7012	0.106923	g
83.9929	0.6556	2.18602	0.0155053	0.0141658	0.717592	29.3062	38.0644	0.116408	g
89.0949	0.658396	2.15523	0.0157321	0.0144714	0.715754	29.7249	41.4411	0.125796	g
94.1969	0.66118	2.12529	0.0159583	0.0147792	0.713926	30.1435	44.8313	0.135089	g
99.299	0.663949	2.09618	0.0161838	0.0150894	0.712104	30.5622	48.2349	0.144291	g
104.401	0.666704	2.06785	0.0164088	0.0154019	0.710288	30.9808	51.6519	0.153403	g
109.503	0.669443	2.04028	0.0166331	0.0157167	0.70848	31.3995	55.0822	0.162428	g
114.605	0.672165	2.01343	0.0168571	0.0160337	0.706684	31.8182	58.5258	0.171367	g
119.707	0.67487	1.98729	0.0170807	0.016353	0.7049	32.2368	61.9826	0.180224	g
124.809	0.677557	1.96181	0.0173038	0.0166745	0.703125	32.6555	65.4526	0.189	g
129.911	0.680225	1.93698	0.0175263	0.0169983	0.701354	33.0741	68.9356	0.197697	g
135.013	0.682873	1.91276	0.0177481	0.0173242	0.699583	33.4928	72.4317	0.206316	g
140.115	0.685502	1.88915	0.0179692	0.0176523	0.697809	33.9115	75.9407	0.21486	g
145.217	0.688109	1.86611	0.0181896	0.0179825	0.696033	34.3301	79.4626	0.223329	g
150.319	0.690696	1.84363	0.0184093	0.0183148	0.694261	34.7488	82.9972	0.231727	g
155.421	0.693261	1.82168	0.0186285	0.0186491	0.692496	35.1674	86.5445	0.240054	g
160.523	0.695803	1.80025	0.0188472	0.0189854	0.690738	35.5861	90.1044	0.248311	g
165.626	0.698323	1.77931	0.0190653	0.0193237	0.688985	36.0048	93.6768	0.2565	g
170.728	0.700819	1.75886	0.0192827	0.0196639	0.687233	36.4234	97.2615	0.264623	g
175.83	0.703293	1.73888	0.0194993	0.020006	0.685479	36.8421	100.859	0.27268	g
180.932	0.705742	1.71934	0.019715	0.02035	0.683722	37.2607	104.468	0.280674	g
186.034	0.708167	1.70023	0.0199301	0.0206957	0.68197	37.6794	108.089	0.288604	g
191.136	0.710569	1.68155	0.0201446	0.0210431	0.680227	38.0981	111.722	0.296473	g
196.238	0.712945	1.66327	0.0203586	0.0213923	0.678494	38.5167	115.367	0.304281	g
201.34	0.715297	1.64539	0.0205719	0.0217431	0.676767	38.9354	119.024	0.312029	g
206.442	0.717624	1.62788	0.0207843	0.0220954	0.67504	39.354	122.692	0.319719	g
211.544	0.719926	1.61075	0.0209958	0.0224494	0.673312	39.7727	126.372	0.327352	g
216.646	0.722203	1.59397	0.0212066	0.0228048	0.67159	40.1914	130.064	0.334928	g
221.748	0.724454	1.57754	0.0214169	0.0231616	0.669884	40.61	133.766	0.342448	g
226.85	0.72668	1.56144	0.0216268	0.0235198	0.668191	41.0287	137.48	0.349913	g

Property Profiles for sulfur dioxide

Heat Capacity (Cp) vs Temperature

Density vs Temperature

Thermal Conductivity vs Temperature

Thermodynamic Property Profile at Constant Pressure

This page presents the temperature-dependent thermodynamic and transport properties of sulfur dioxide (CAS 7446-09-5) 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 sulfur dioxide 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 sulfur dioxide 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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