n-Pentane (R601) Thermodynamic properties

Saturation tables by temperature and by pressure, superheated vapor table, p–h and T–s diagrams and constants of n-Pentane (C₅H₁₂), computed with CoolProp. Any other state of n-Pentane, from any two properties, in the State Explorer or the Worksheet.

Calculate a state of n-Pentane Open it in the Worksheet

Constants

Formula: C₅H₁₂
Also known as: nPentane, Pentane, PENTANE, N-PENTANE, R601, NC5H12, n-C5H12
CAS: 109-66-0
Molar mass: 72.149 g/mol
Normal boiling point (1 atm): 36.059 °C (309.21 K)
Critical temperature: 196.55 °C (469.7 K)
Critical pressure: 3.3675 MPa
Critical density: 231.6 kg/m³
Triple point: -129.68 °C, 0.000078028 kPa
Acentric factor: 0.25103
Valid up to: 376.85 °C, 780 MPa

Saturation table

By temperature: saturated liquid (f) and saturated vapor (g).

Saturated n-Pentane, by temperature
T °C	Psat kPa	vf m³/kg	vg m³/kg	hf kJ/kg	hfg kJ/kg	hg kJ/kg	sf kJ/(kg·K)	sg kJ/(kg·K)
-125	0.00019362	0.001317	88177	-337.45	473.8	136.35	-1.5232	1.6749
-100	0.009856	0.0013576	2024.5	-288.42	454.8	166.38	-1.2174	1.4092
-75	0.16556	0.0014002	137.89	-239.01	436.81	197.79	-0.95092	1.2535
-50	1.3571	0.0014457	18.918	-188.59	419.47	230.88	-0.71136	1.1684
-25	6.8357	0.0014949	4.1583	-136.59	402.36	265.77	-0.49058	1.1309
0	24.455	0.0015491	1.2669	-82.512	384.9	302.39	-0.28311	1.126
25	68.355	0.0016099	0.48595	-25.929	366.41	340.48	-0.085211	1.1437
50	159.28	0.0016795	0.21962	33.539	346.13	379.67	0.10578	1.1769
75	323.78	0.0017616	0.11158	96.276	323.19	419.47	0.29187	1.2202
100	593.04	0.0018619	0.061507	162.73	296.5	459.23	0.47479	1.2694
125	1002.3	0.0019912	0.035718	233.56	264.39	497.95	0.6564	1.3205
150	1592	0.0021737	0.021175	310	223.58	533.58	0.83955	1.3679
175	2411.9	0.0024887	0.012114	395.57	165.05	560.62	1.0315	1.3998

Saturation table by pressure

By pressure: saturated liquid (f) and saturated vapor (g).

Saturated n-Pentane, by pressure
P kPa	Tsat °C	vf m³/kg	vg m³/kg	hf kJ/kg	hfg kJ/kg	hg kJ/kg	sf kJ/(kg·K)	sg kJ/(kg·K)
1	-54.081	0.001438	25.212	-196.92	422.27	225.36	-0.749	1.1786
2	-44.552	0.0014561	13.142	-177.42	415.74	238.33	-0.66187	1.1568
3	-38.511	0.0014678	8.9848	-164.93	411.61	246.69	-0.60795	1.1463
5	-30.342	0.001484	5.5699	-147.86	406.03	258.17	-0.53648	1.1357
10	-18.115	0.0015093	2.9154	-121.93	397.62	275.69	-0.4323	1.1268
20	-4.335	0.0015393	1.528	-92.057	387.98	295.93	-0.31831	1.125
30	4.576	0.0015597	1.0474	-72.354	381.61	309.26	-0.24626	1.1278
50	16.843	0.0015892	0.65065	-44.689	372.6	327.91	-0.14891	1.1359
100	35.674	0.0016384	0.34037	-0.91286	358.01	357.1	-0.0029471	1.1563
200	57.574	0.0017029	0.17701	52.181	339.51	391.69	0.16259	1.1892
300	72.105	0.0017513	0.1201	88.831	326.02	414.85	0.27052	1.2148
500	92.564	0.0018297	0.072934	142.54	304.91	447.46	0.42062	1.2544
1000	124.88	0.0019905	0.035808	233.21	264.56	497.77	0.65553	1.3202
2000	163.43	0.0023151	0.01586	354.37	195.53	549.9	0.94064	1.3885
3000	189.02	0.0028853	0.0080329	453.57	109.4	562.96	1.1554	1.3921

Diagrams

p–h diagram of n-Pentane, with isotherms

T–s diagram of n-Pentane, with isobars

Superheated vapor table

At each pressure, from its saturated vapor (Sat.) to higher temperatures.

Superheated n-Pentane at 20 kPa (Tsat -4.335 °C)
T °C	v m³/kg	u kJ/kg	h kJ/kg	s kJ/(kg·K)
Sat.	1.528	265.37	295.93	1.125
50	1.8486	349.46	386.43	1.431
100	2.1406	438.12	480.93	1.7025
150	2.4311	537.72	586.34	1.9673
200	2.7209	647.98	702.39	2.2264
250	3.0102	768.39	828.59	2.4797
300	3.2991	898.32	964.3	2.7273
350	3.5879	1037.1	1108.8	2.969

Superheated n-Pentane at 50 kPa (Tsat 16.843 °C)
T °C	v m³/kg	u kJ/kg	h kJ/kg	s kJ/(kg·K)
Sat.	0.65065	295.37	327.91	1.1359
50	0.73124	348.48	385.04	1.3224
100	0.85048	437.44	479.96	1.5951
150	0.96819	537.22	585.63	1.8606
200	1.0851	647.59	701.84	2.1199
250	1.2015	768.07	828.14	2.3735
300	1.3176	898.05	963.93	2.6213
350	1.4336	1036.8	1108.5	2.863

Superheated n-Pentane at 100 kPa (Tsat 35.674 °C)
T °C	v m³/kg	u kJ/kg	h kJ/kg	s kJ/(kg·K)
Sat.	0.34037	323.07	357.1	1.1563
50	0.35857	346.79	382.65	1.2372
100	0.42036	436.28	478.32	1.5121
150	0.48052	536.37	584.43	1.7787
200	0.53982	646.93	700.91	2.0387
250	0.59863	767.54	827.4	2.2926
300	0.65714	897.6	963.32	2.5406
350	0.71546	1036.5	1108	2.7826

Superheated n-Pentane at 200 kPa (Tsat 57.574 °C)
T °C	v m³/kg	u kJ/kg	h kJ/kg	s kJ/(kg·K)
Sat.	0.17701	356.29	391.69	1.1892
100	0.20513	433.87	474.89	1.4257
150	0.23661	534.64	581.96	1.6947
200	0.26715	645.6	699.03	1.956
250	0.29717	766.47	825.9	2.2107
300	0.32688	896.7	962.08	2.4592
350	0.3564	1035.7	1107	2.7014

Superheated n-Pentane at 500 kPa (Tsat 92.564 °C)
T °C	v m³/kg	u kJ/kg	h kJ/kg	s kJ/(kg·K)
Sat.	0.072934	410.99	447.46	1.2544
100	0.075317	425.68	463.34	1.2974
150	0.090021	529.08	574.09	1.5757
200	0.10345	641.45	693.18	1.8415
250	0.11626	763.16	821.3	2.0988
300	0.12872	893.96	958.32	2.3488
350	0.14096	1033.3	1103.8	2.5921

Superheated n-Pentane at 1 MPa (Tsat 124.88 °C)
T °C	v m³/kg	u kJ/kg	h kJ/kg	s kJ/(kg·K)
Sat.	0.035808	461.96	497.77	1.3202
150	0.040614	518.14	558.75	1.4688
200	0.048698	633.87	682.57	1.7452
250	0.055889	757.35	813.24	2.0077
300	0.062645	889.23	951.87	2.2606
350	0.06915	1029.3	1098.5	2.5057

Superheated n-Pentane at 2 MPa (Tsat 163.43 °C)
T °C	v m³/kg	u kJ/kg	h kJ/kg	s kJ/(kg·K)
Sat.	0.01586	518.18	549.9	1.3885
200	0.020803	614.96	656.57	1.6233
250	0.025553	744.29	795.4	1.9023
300	0.029572	879.1	938.24	2.163
350	0.033252	1021	1087.5	2.4125

Enthalpy and entropy are measured from n-Pentane's own reference state (CoolProp's default). The textbooks' refrigerant tables use ASHRAE's: in the Worksheet, write reference ASHRAE.