Mixture of Butane + Methane

Datasets

1. Mole fraction (4)
2. C_p,liquid - Molar heat capacity at constant pressure, J/K/mol (2)
3. η - Viscosity, Pa*s (8)
4. P_vap - Vapor or sublimation pressure, kPa (6)
5. ρ_g - Mass density, kg/m3 (4)
6. ρ_l - Mass density, kg/m3 (2)
7. c_sound,fluid - Speed of Sound, m/s (2)
8. γ - Surface tension liquid-gas, N/m (2)
9. Vapor or sublimation pressure, kPa (2)

Mole fraction of Methane (2) [ref]

Operational condition: Temperature, K = 310.95 (Liquid)

Mole fraction of Methane (2) - Liquid	Mole fraction of Methane (2) - Gas
0.5155	0.8550
0.5905	0.8312
0.6111	0.8232

Mole fraction of Butane (1) [ref]

Fixed		Measured
Temperature, K - Liquid	Mole fraction of Methane (2) - Liquid	Mole fraction of Butane (1) - Gas
273.42	0.4246	0.0482
263.48	0.4331	0.0357
253.52	0.4480	0.0265
244.52	0.4601	0.0197
243.52	0.4646	0.0188
233.50	0.4880	0.0126
233.49	0.4882	0.0146
223.44	0.5201	0.0075
213.36	0.5615	0.0061
203.25	0.6217	0.0036
244.52	0.1071	0.0289
244.53	0.2669	0.0175
244.48	0.3950	0.0154
244.52	0.4601	0.0197
244.52	0.5008	0.0185
244.51	0.6002	0.0274
244.52	0.6180	0.0251
244.52	0.6869	0.0399
244.52	0.7522	0.0515
244.48	0.7764	0.0594

Mole fraction of Methane (2) [ref]

Operational condition: Temperature, K = 310.95 (Liquid)

Mole fraction of Methane (2) - Liquid	Mole fraction of Methane (2) - Gas
0.5155	0.8550
0.5905	0.8312
0.6111	0.8232

Mole fraction of Butane (1) [ref]

Fixed		Measured
Temperature, K - Liquid	Mole fraction of Methane (2) - Liquid	Mole fraction of Butane (1) - Gas
273.42	0.4246	0.0482
263.48	0.4331	0.0357
253.52	0.4480	0.0265
244.52	0.4601	0.0197
243.52	0.4646	0.0188
233.50	0.4880	0.0126
233.49	0.4882	0.0146
223.44	0.5201	0.0075
213.36	0.5615	0.0061
203.25	0.6217	0.0036
244.52	0.1071	0.0289
244.53	0.2669	0.0175
244.48	0.3950	0.0154
244.52	0.4601	0.0197
244.52	0.5008	0.0185
244.51	0.6002	0.0274
244.52	0.6180	0.0251
244.52	0.6869	0.0399
244.52	0.7522	0.0515
244.48	0.7764	0.0594

Molar heat capacity at constant pressure, J/K/mol [ref]

Fixed			Measured
Mole fraction of Methane (2) - Liquid	Pressure, kPa - Liquid	Temperature, K - Liquid	Molar heat capacity at constant pressure, J/K/mol - Liquid
0.9500	5050.00	148.15	62.44
0.9500	5050.00	158.15	64.49
0.9500	5050.00	168.15	67.90
0.9500	5050.00	178.15	73.38
0.8800	5150.00	118.15	61.84
0.8800	5150.00	128.15	62.60
0.8800	5150.00	138.15	63.49
0.8800	5150.00	148.15	64.92
0.8800	5150.00	158.15	66.55
0.8800	5150.00	168.15	68.32
0.6000	5150.00	118.15	76.47
0.6000	5150.00	128.15	76.37
0.6000	5150.00	138.15	77.25
0.6000	5150.00	148.15	77.85
0.6000	5150.00	158.15	78.21
0.6000	5150.00	168.15	78.34

Molar heat capacity at constant pressure, J/K/mol [ref]

Fixed			Measured
Mole fraction of Methane (2) - Liquid	Pressure, kPa - Liquid	Temperature, K - Liquid	Molar heat capacity at constant pressure, J/K/mol - Liquid
0.9500	5050.00	148.15	62.44
0.9500	5050.00	158.15	64.49
0.9500	5050.00	168.15	67.90
0.9500	5050.00	178.15	73.38
0.8800	5150.00	118.15	61.84
0.8800	5150.00	128.15	62.60
0.8800	5150.00	138.15	63.49
0.8800	5150.00	148.15	64.92
0.8800	5150.00	158.15	66.55
0.8800	5150.00	168.15	68.32
0.6000	5150.00	118.15	76.47
0.6000	5150.00	128.15	76.37
0.6000	5150.00	138.15	77.25
0.6000	5150.00	148.15	77.85
0.6000	5150.00	158.15	78.21
0.6000	5150.00	168.15	78.34

Viscosity, Pa*s [ref]

Operational condition: Temperature, K = 310.95 (Gas)

Pressure, kPa - Gas	Viscosity, Pa*s - Gas
10800.00	0.0000
12270.00	0.0000
12620.00	0.0000

Viscosity, Pa*s [ref]

Operational condition: Temperature, K = 310.95 (Liquid)

Pressure, kPa - Liquid	Viscosity, Pa*s - Liquid
10800.00	0.0001
12270.00	0.0000
12620.00	0.0000

Viscosity, Pa*s [ref]

Operational conditions:

• Temperature, K = 310.95 (Gas)
• Mole fraction = 0.736 (Gas)

Pressure, kPa - Gas	Viscosity, Pa*s - Gas
13790.00	0.0000
20680.00	0.0000

Viscosity, Pa*s [ref]

Operational condition: Mole fraction = 0.9484 (Gas)

Fixed		Measured
Temperature, K - Gas	Pressure, kPa - Gas	Viscosity, Pa*s - Gas
204.00	12176.00	0.0000
204.00	15215.00	0.0000
204.00	18140.00	0.0000
204.10	19569.00	0.0000
204.10	21253.00	0.0000
204.10	24282.00	0.0001
204.20	27310.00	0.0001
204.20	30331.00	0.0001
232.70	11211.00	0.0000
232.70	15226.00	0.0000
232.70	19261.00	0.0000
232.70	21317.00	0.0000
232.70	23399.00	0.0000
232.70	24794.00	0.0000
270.00	13168.00	0.0000
270.00	16207.00	0.0000
270.00	19306.00	0.0000
270.00	22342.00	0.0000
270.00	25341.00	0.0000
313.10	2721.00	0.0000
313.10	3736.00	0.0000
313.10	5749.00	0.0000
313.00	6625.00	0.0000
313.00	8648.00	0.0000
312.90	10664.00	0.0000
312.90	12679.00	0.0000
312.80	14696.00	0.0000
312.80	16714.00	0.0000
312.80	18733.00	0.0000
312.80	20751.00	0.0000
312.70	24798.00	0.0000
312.70	28777.00	0.0000
351.20	6827.00	0.0000
351.20	8853.00	0.0000
351.10	10879.00	0.0000
351.10	12905.00	0.0000
351.10	14932.00	0.0000
351.10	16955.00	0.0000
351.10	18972.00	0.0000
351.10	20973.00	0.0000
351.10	22996.00	0.0000
351.10	25011.00	0.0000
351.10	27025.00	0.0000
390.40	10172.00	0.0000
390.40	12185.00	0.0000
390.40	14205.00	0.0000
390.40	16225.00	0.0000
390.40	18245.00	0.0000
390.40	20263.00	0.0000
390.40	22279.00	0.0000
390.30	24294.00	0.0000
390.30	26308.00	0.0000
390.30	28318.00	0.0000
423.10	4111.00	0.0000
423.10	8164.00	0.0000
423.10	12211.00	0.0000
423.10	16216.00	0.0000
423.10	20247.00	0.0000

Viscosity, Pa*s [ref]

Operational condition: Temperature, K = 310.95 (Gas)

Pressure, kPa - Gas	Viscosity, Pa*s - Gas
10800.00	0.0000
12270.00	0.0000
12620.00	0.0000

Viscosity, Pa*s [ref]

Operational condition: Temperature, K = 310.95 (Liquid)

Pressure, kPa - Liquid	Viscosity, Pa*s - Liquid
10800.00	0.0001
12270.00	0.0000
12620.00	0.0000

Viscosity, Pa*s [ref]

Operational conditions:

• Temperature, K = 310.95 (Gas)
• Mole fraction = 0.736 (Gas)

Pressure, kPa - Gas	Viscosity, Pa*s - Gas
13790.00	0.0000
20680.00	0.0000

Viscosity, Pa*s [ref]

Operational condition: Mole fraction = 0.9484 (Gas)

Fixed		Measured
Temperature, K - Gas	Pressure, kPa - Gas	Viscosity, Pa*s - Gas
204.00	12176.00	0.0000
204.00	15215.00	0.0000
204.00	18140.00	0.0000
204.10	19569.00	0.0000
204.10	21253.00	0.0000
204.10	24282.00	0.0001
204.20	27310.00	0.0001
204.20	30331.00	0.0001
232.70	11211.00	0.0000
232.70	15226.00	0.0000
232.70	19261.00	0.0000
232.70	21317.00	0.0000
232.70	23399.00	0.0000
232.70	24794.00	0.0000
270.00	13168.00	0.0000
270.00	16207.00	0.0000
270.00	19306.00	0.0000
270.00	22342.00	0.0000
270.00	25341.00	0.0000
313.10	2721.00	0.0000
313.10	3736.00	0.0000
313.10	5749.00	0.0000
313.00	6625.00	0.0000
313.00	8648.00	0.0000
312.90	10664.00	0.0000
312.90	12679.00	0.0000
312.80	14696.00	0.0000
312.80	16714.00	0.0000
312.80	18733.00	0.0000
312.80	20751.00	0.0000
312.70	24798.00	0.0000
312.70	28777.00	0.0000
351.20	6827.00	0.0000
351.20	8853.00	0.0000
351.10	10879.00	0.0000
351.10	12905.00	0.0000
351.10	14932.00	0.0000
351.10	16955.00	0.0000
351.10	18972.00	0.0000
351.10	20973.00	0.0000
351.10	22996.00	0.0000
351.10	25011.00	0.0000
351.10	27025.00	0.0000
390.40	10172.00	0.0000
390.40	12185.00	0.0000
390.40	14205.00	0.0000
390.40	16225.00	0.0000
390.40	18245.00	0.0000
390.40	20263.00	0.0000
390.40	22279.00	0.0000
390.30	24294.00	0.0000
390.30	26308.00	0.0000
390.30	28318.00	0.0000
423.10	4111.00	0.0000
423.10	8164.00	0.0000
423.10	12211.00	0.0000
423.10	16216.00	0.0000
423.10	20247.00	0.0000

Vapor or sublimation pressure, kPa [ref]

Operational condition: Temperature, K = 310.95 (Liquid)

Mole fraction of Methane (2) - Liquid	Vapor or sublimation pressure, kPa - Liquid
0.5155	10800.00
0.5905	12270.00
0.6111	12620.00

Vapor or sublimation pressure, kPa [ref]

Fixed		Measured
Temperature, K - Liquid	Mole fraction of Methane (2) - Gas	Vapor or sublimation pressure, kPa - Liquid
310.95	0.7360	12890.00

Vapor or sublimation pressure, kPa [ref]

Fixed		Measured
Temperature, K - Liquid	Mole fraction of Methane (2) - Liquid	Vapor or sublimation pressure, kPa - Liquid
273.42	0.4246	7249.00
263.48	0.4331	6842.00
253.52	0.4480	6431.00
244.52	0.4601	6005.00
243.52	0.4646	6010.00
233.50	0.4880	5593.00
233.49	0.4882	5604.00
223.44	0.5201	5163.00
213.36	0.5615	4702.00
203.25	0.6217	4224.00
244.52	0.1071	1311.00
244.53	0.2669	3318.00
244.48	0.3950	5058.00
244.52	0.4601	6005.00
244.52	0.5008	6593.00
244.51	0.6002	8016.00
244.52	0.6180	8238.00
244.52	0.6869	9161.00
244.52	0.7522	9913.00
244.48	0.7764	10132.00

Vapor or sublimation pressure, kPa [ref]

Operational condition: Temperature, K = 310.95 (Liquid)

Mole fraction of Methane (2) - Liquid	Vapor or sublimation pressure, kPa - Liquid
0.5155	10800.00
0.5905	12270.00
0.6111	12620.00

Vapor or sublimation pressure, kPa [ref]

Fixed		Measured
Temperature, K - Liquid	Mole fraction of Methane (2) - Gas	Vapor or sublimation pressure, kPa - Liquid
310.95	0.7360	12890.00

Vapor or sublimation pressure, kPa [ref]

Fixed		Measured
Temperature, K - Liquid	Mole fraction of Methane (2) - Liquid	Vapor or sublimation pressure, kPa - Liquid
273.42	0.4246	7249.00
263.48	0.4331	6842.00
253.52	0.4480	6431.00
244.52	0.4601	6005.00
243.52	0.4646	6010.00
233.50	0.4880	5593.00
233.49	0.4882	5604.00
223.44	0.5201	5163.00
213.36	0.5615	4702.00
203.25	0.6217	4224.00
244.52	0.1071	1311.00
244.53	0.2669	3318.00
244.48	0.3950	5058.00
244.52	0.4601	6005.00
244.52	0.5008	6593.00
244.51	0.6002	8016.00
244.52	0.6180	8238.00
244.52	0.6869	9161.00
244.52	0.7522	9913.00
244.48	0.7764	10132.00

Mass density, kg/m3 [ref]

Operational condition: Temperature, K = 310.95 (Gas)

Pressure, kPa - Gas	Mass density, kg/m3 - Gas
10800.00	133.0
12270.00	178.0
12340.00	185.0
12410.00	189.0
12690.00	211.0
12760.00	220.0

Mass density, kg/m3 [ref]

Operational conditions:

• Temperature, K = 310.95 (Gas)
• Mole fraction = 0.736 (Gas)

Pressure, kPa - Gas	Mass density, kg/m3 - Gas
13790.00	265.0
20680.00	329.0

Mass density, kg/m3 [ref]

Operational condition: Temperature, K = 310.95 (Gas)

Pressure, kPa - Gas	Mass density, kg/m3 - Gas
10800.00	133.0
12270.00	178.0
12340.00	185.0
12410.00	189.0
12690.00	211.0
12760.00	220.0

Mass density, kg/m3 [ref]

Operational conditions:

• Temperature, K = 310.95 (Gas)
• Mole fraction = 0.736 (Gas)

Pressure, kPa - Gas	Mass density, kg/m3 - Gas
13790.00	265.0
20680.00	329.0

Mass density, kg/m3 [ref]

Operational condition: Temperature, K = 310.95 (Liquid)

Pressure, kPa - Liquid	Mass density, kg/m3 - Liquid
10800.00	404.0
12270.00	354.0
12340.00	345.0
12410.00	341.0
12690.00	317.0
12760.00	307.0

Mass density, kg/m3 [ref]

Operational condition: Temperature, K = 310.95 (Liquid)

Pressure, kPa - Liquid	Mass density, kg/m3 - Liquid
10800.00	404.0
12270.00	354.0
12340.00	345.0
12410.00	341.0
12690.00	317.0
12760.00	307.0

Speed of sound, m/s [ref]

Operational condition: Temperature, K = 311 (Fluid (supercritical or subcritical phases))

Fixed		Measured
Mole fraction of Methane (2) - Fluid (supercritical or subcritical phases)	Pressure, kPa - Fluid (supercritical or subcritical phases)	Speed of sound, m/s - Fluid (supercritical or subcritical phases)
0.1580	3930.00	760.1
0.1580	3999.00	760.7
0.1580	4137.00	762.3
0.1580	4826.00	778.7
0.1580	5516.00	793.5
0.1580	6205.00	805.6
0.1580	6895.00	817.6
0.1580	10342.00	866.0
0.1580	13790.00	906.3
0.7240	13128.00	314.6
0.7240	13148.00	316.5
0.7240	13231.00	323.7
0.7240	13307.00	329.7
0.7240	13472.00	344.0
0.7240	13845.00	366.1
0.7240	14479.00	395.6
0.7240	15168.00	420.7
0.7240	15858.00	443.6
0.7240	16547.00	464.8
0.7240	17237.00	484.4
0.8940	2068.00	381.6
0.8940	2758.00	378.5
0.8940	3447.00	375.5
0.8940	4137.00	372.7
0.8940	4826.00	370.1
0.8940	5516.00	368.0
0.8940	6205.00	366.4
0.8940	6895.00	365.2
0.8940	7584.00	364.8
0.8940	8274.00	365.1
0.8940	8963.00	366.0
0.8940	9653.00	367.8
0.8940	10342.00	370.3
0.8940	11032.00	373.7
0.8940	11721.00	378.0
0.8940	12411.00	383.1
0.8940	13100.00	388.9
0.8940	13790.00	395.6
0.8940	14479.00	402.9
0.8940	15168.00	410.8
0.8940	15858.00	419.4
0.8940	16547.00	428.4
0.8940	17237.00	438.0

Speed of sound, m/s [ref]

Operational condition: Temperature, K = 311 (Fluid (supercritical or subcritical phases))

Fixed		Measured
Mole fraction of Methane (2) - Fluid (supercritical or subcritical phases)	Pressure, kPa - Fluid (supercritical or subcritical phases)	Speed of sound, m/s - Fluid (supercritical or subcritical phases)
0.1580	3930.00	760.1
0.1580	3999.00	760.7
0.1580	4137.00	762.3
0.1580	4826.00	778.7
0.1580	5516.00	793.5
0.1580	6205.00	805.6
0.1580	6895.00	817.6
0.1580	10342.00	866.0
0.1580	13790.00	906.3
0.7240	13128.00	314.6
0.7240	13148.00	316.5
0.7240	13231.00	323.7
0.7240	13307.00	329.7
0.7240	13472.00	344.0
0.7240	13845.00	366.1
0.7240	14479.00	395.6
0.7240	15168.00	420.7
0.7240	15858.00	443.6
0.7240	16547.00	464.8
0.7240	17237.00	484.4
0.8940	2068.00	381.6
0.8940	2758.00	378.5
0.8940	3447.00	375.5
0.8940	4137.00	372.7
0.8940	4826.00	370.1
0.8940	5516.00	368.0
0.8940	6205.00	366.4
0.8940	6895.00	365.2
0.8940	7584.00	364.8
0.8940	8274.00	365.1
0.8940	8963.00	366.0
0.8940	9653.00	367.8
0.8940	10342.00	370.3
0.8940	11032.00	373.7
0.8940	11721.00	378.0
0.8940	12411.00	383.1
0.8940	13100.00	388.9
0.8940	13790.00	395.6
0.8940	14479.00	402.9
0.8940	15168.00	410.8
0.8940	15858.00	419.4
0.8940	16547.00	428.4
0.8940	17237.00	438.0

Surface tension liquid-gas, N/m [ref]

Operational condition: Temperature, K = 310.95 (Liquid)

Pressure, kPa - Liquid	Surface tension liquid-gas, N/m - Liquid
12760.00	8.0000e-06
12690.00	0.0000
12410.00	0.0001
12340.00	0.0001
10800.00	0.0008

Surface tension liquid-gas, N/m [ref]

Operational condition: Temperature, K = 310.95 (Liquid)

Pressure, kPa - Liquid	Surface tension liquid-gas, N/m - Liquid
12760.00	8.0000e-06
12690.00	0.0000
12410.00	0.0001
12340.00	0.0001
10800.00	0.0008

Vapor or sublimation pressure, kPa [ref]

Operational condition: Mole fraction = 0.9484 (Gas)

Temperature, K - Gas	Vapor or sublimation pressure, kPa - Gas
263.00	10100.00
263.00	1630.00
273.00	8930.00
273.00	3330.00

Vapor or sublimation pressure, kPa [ref]

Operational condition: Mole fraction = 0.9484 (Gas)

Temperature, K - Gas	Vapor or sublimation pressure, kPa - Gas
263.00	10100.00
263.00	1630.00
273.00	8930.00
273.00	3330.00

Sources

• Viscosity, density, interfacial tension and compositional data for near critical mixtures of methane + butane and methane + decane systems at 310.95K
• Reference Quality Vapor-Liquid Equilibrium Data for the Binary Systems Methane + Ethane, + Propane, + Butane and, + 2-Methylpropane, at Temperatures from (203 to 273) K and Pressures to 9 MPa
• Viscosity and dew point measurements of {xCH4 + (1- x)C4H10} for x = 0.9484 with a vibrating-wire viscometer.
• Measurements of the Speed of Sound for Mixtures of Methane + Butane with a Particular Focus on the Critical State
• Isobaric Heat Capacity Measurements of Liquid Methane + Propane, Methane + Butane, and a Mixed Refrigerant by Differential Scanning Calorimetry at High Pressures and Low Temperatures