R507A Thermodynamic properties

Saturation tables by temperature and by pressure, superheated vapor table, p–h and T–s diagrams and constants of R507A, computed with CoolProp. Any other state of R507A, from any two properties, in the State Explorer or the Worksheet.

Calculate a state of R507A Open it in the Worksheet

Constants

Also known as: R507a
CAS: R507A.PPF
Molar mass: 98.859 g/mol
Bubble and dew points at 1 atm: -46.742 °C, -46.74 °C
Critical temperature: 70.615 °C (343.77 K)
Critical pressure: 3.7049 MPa
Critical density: 490.74 kg/m³
Triple point: -73.15 °C, 23.233 kPa
Acentric factor: 0.286
Valid up to: 226.85 °C, 50 MPa

Saturation table

R507A is a mixture: at a temperature, it starts boiling (bubble) and ends (dew) at different pressures.

Saturated R507A, by temperature
T °C	P bubble kPa	P dew kPa	vf m³/kg	vg m³/kg	hf kJ/kg	hfg kJ/kg	hg kJ/kg	sf kJ/(kg·K)	sg kJ/(kg·K)
-70	28.367	28.358	0.00072072	0.58994	110.58	211.23	321.8	0.62495	1.6648
-60	51.054	51.05	0.00073664	0.34045	122.72	205.17	327.88	0.68322	1.6458
-50	86.378	86.373	0.00075361	0.20796	135	198.94	333.94	0.73941	1.631
-40	138.68	138.66	0.00077185	0.13316	147.47	192.47	339.94	0.7939	1.6195
-30	212.89	212.83	0.00079167	0.088656	160.17	185.65	345.81	0.84696	1.6105
-20	314.52	314.38	0.00081342	0.060955	173.12	178.38	351.5	0.89885	1.6036
-10	449.54	449.28	0.00083759	0.043025	186.38	170.57	356.95	0.94979	1.598
0	624.39	623.97	0.00086486	0.031014	200	162.06	362.06	1	1.5933
10	846.01	845.36	0.00089619	0.02272	214.04	152.69	366.73	1.0498	1.5891
20	1121.8	1120.9	0.00093308	0.01683	228.61	142.21	370.82	1.0995	1.5846
30	1460	1458.7	0.00097796	0.012537	243.83	130.28	374.11	1.1495	1.5792
40	1869.5	1867.9	0.0010352	0.0093214	259.95	116.29	376.24	1.2004	1.5718
50	2361.2	2359.2	0.001114	0.0068323	277.4	99.13	376.53	1.2536	1.5604
60	2948.9	2946.9	0.0012405	0.0047931	297.26	75.947	373.2	1.312	1.54

Saturation table by pressure

At a pressure, R507A starts boiling (bubble) and ends (dew) at different temperatures.

Saturated R507A, by pressure
P kPa	T bubble °C	T dew °C	vf m³/kg	vg m³/kg	hf kJ/kg	hfg kJ/kg	hg kJ/kg	sf kJ/(kg·K)	sg kJ/(kg·K)
30	-69.096	-69.091	0.00072212	0.5597	111.67	210.69	322.35	0.63032	1.6629
50	-60.375	-60.374	0.00073602	0.34714	122.26	205.4	327.66	0.68108	1.6465
100	-47.015	-47.013	0.0007589	0.18121	138.7	197.04	335.74	0.75585	1.6272
200	-31.518	-31.512	0.00078854	0.09407	158.22	186.71	344.93	0.83899	1.6117
300	-21.26	-21.249	0.00081056	0.063776	171.47	179.33	350.81	0.89237	1.6043
500	-6.85	-6.832	0.00084581	0.038707	190.63	167.98	358.61	0.96568	1.5965
1000	15.84	15.869	0.00091693	0.019032	222.48	146.74	369.21	1.0788	1.5865
2000	42.834	42.871	0.0010547	0.0085451	264.73	111.82	376.56	1.2152	1.5691
3000	60.791	60.82	0.0012546	0.0046363	299.01	73.624	372.64	1.3171	1.5375

Diagrams

p–h diagram of R507A, with isotherms

T–s diagram of R507A, with isobars

Superheated vapor table

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

Superheated R507A at 50 kPa (Tsat -60.374 °C)
T °C	v m³/kg	u kJ/kg	h kJ/kg	s kJ/(kg·K)
Sat.	0.34714	310.3	327.66	1.6465
-50	0.3661	317.03	335.34	1.6817
-25	0.41069	333.88	354.42	1.7627
0	0.45432	351.74	374.46	1.8396
25	0.49743	370.67	395.55	1.9135
50	0.54024	390.69	417.7	1.9848
75	0.58287	411.77	440.91	2.054
100	0.62536	433.87	465.14	2.1212
125	0.66777	456.96	490.35	2.1865
150	0.71012	480.99	516.5	2.2502
175	0.75241	505.91	543.53	2.3123
200	0.79467	531.67	571.4	2.3728
225	0.8369	558.22	600.07	2.4318

Superheated R507A at 100 kPa (Tsat -47.013 °C)
T °C	v m³/kg	u kJ/kg	h kJ/kg	s kJ/(kg·K)
Sat.	0.18121	317.62	335.74	1.6272
-25	0.20191	332.91	353.1	1.7005
0	0.22455	351.04	373.5	1.7788
25	0.24665	370.14	394.81	1.8534
50	0.26845	390.27	417.11	1.9252
75	0.29005	411.42	440.42	1.9947
100	0.31152	433.58	464.73	2.0621
125	0.33291	456.71	490	2.1276
150	0.35423	480.77	516.19	2.1914
175	0.3755	505.71	543.26	2.2535
200	0.39673	531.49	571.16	2.3141
225	0.41794	558.06	599.85	2.3732

Superheated R507A at 200 kPa (Tsat -31.512 °C)
T °C	v m³/kg	u kJ/kg	h kJ/kg	s kJ/(kg·K)
Sat.	0.09407	326.12	344.93	1.6117
-25	0.097393	330.91	350.38	1.634
0	0.1096	349.61	371.53	1.7152
25	0.12123	369.06	393.31	1.7914
50	0.13253	389.41	415.92	1.8642
75	0.14363	410.71	439.44	1.9343
100	0.1546	432.98	463.9	2.0022
125	0.16547	456.19	489.28	2.068
150	0.17628	480.31	515.57	2.132
175	0.18704	505.3	542.71	2.1943
200	0.19777	531.12	570.68	2.255
225	0.20846	557.72	599.42	2.3142

Superheated R507A at 500 kPa (Tsat -6.832 °C)
T °C	v m³/kg	u kJ/kg	h kJ/kg	s kJ/(kg·K)
Sat.	0.038707	339.25	358.61	1.5965
0	0.040334	344.92	365.09	1.6205
25	0.045834	365.62	388.54	1.7026
50	0.050907	386.73	412.18	1.7788
75	0.055739	408.53	436.4	1.851
100	0.060421	431.15	461.36	1.9202
125	0.065001	454.61	487.11	1.987
150	0.069511	478.93	513.68	2.0517
175	0.073968	504.07	541.06	2.1145
200	0.078385	530.02	569.21	2.1756
225	0.082771	556.72	598.11	2.2352

Superheated R507A at 1 MPa (Tsat 15.869 °C)
T °C	v m³/kg	u kJ/kg	h kJ/kg	s kJ/(kg·K)
Sat.	0.019032	350.18	369.21	1.5865
25	0.02037	358.86	379.23	1.6206
50	0.023552	381.79	405.34	1.7048
75	0.026369	404.64	431.01	1.7813
100	0.028991	427.94	456.93	1.8532
125	0.031492	451.89	483.38	1.9218
150	0.033912	476.56	510.48	1.9878
175	0.036274	501.99	538.26	2.0516
200	0.038593	528.15	566.74	2.1134
225	0.04088	555.03	595.91	2.1735

Superheated R507A at 2 MPa (Tsat 42.871 °C)
T °C	v m³/kg	u kJ/kg	h kJ/kg	s kJ/(kg·K)
Sat.	0.0085451	359.47	376.56	1.5691
50	0.0093623	368.4	387.12	1.6021
75	0.011494	395.46	418.45	1.6956
100	0.013192	420.81	447.19	1.7753
125	0.0147	446.03	475.43	1.8486
150	0.016099	471.58	503.78	1.9176
175	0.017426	497.65	532.5	1.9836
200	0.018704	524.31	561.71	2.047
225	0.019944	551.59	591.47	2.1083

Enthalpy and entropy are measured from R507A's own reference state (CoolProp's default). The textbooks' refrigerant tables use ASHRAE's: in the Worksheet, write reference ASHRAE.