IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Ethene with 2-Methylpropane (isobutane)

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Components:
   (1) Ethene; C2H4; [74-85-1]  NIST Chemistry WebBook for detail
   (2) 2-Methylpropane (isobutane); C4H10; [75-28-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Naumova, A.A.; Tyvina, T.N., Zh. Prikl. Khim. 1981, 54, 2757-8. or J. Appl. Chem. USSR 1981, 54, 2440-1.

Variables:
   Temperature = 293.15 K to 393.15 K
   Pressure = 0.14 to 3.92 MPa (1.4 - 39 atm)

Prepared By:
   W. Hayduk

Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
  

t/°C	T/K	Pressure [MPa]	Pressure Note	Pressure [MPa]	Pressure Note	Mole Fraction (x1)	x1 Note	Mole Fraction of Gas (y1)	y1 Note
20	293.15	0.298	1	0	1 Partial Pressure	0	liquid	0	Mole Fraction Gas
20	293.15	1.01	1	0.713	1 Partial Pressure	0.198	liquid	0.706	Mole Fraction Gas
20	293.15	2.03	1	1.746	1 Partial Pressure	0.427	liquid	0.860	Mole Fraction Gas
20	293.15	3.04	1	2.815	1 Partial Pressure	0.605	liquid	0.926	Mole Fraction Gas
20	293.15	4.05	1	3.831	1 Partial Pressure	0.765	liquid	0.946	Mole Fraction Gas
20	293.15	5.06	1	4.807	1 Partial Pressure	0.895	liquid	0.950	Mole Fraction Gas
40	313.15	0.522	1	0	1 Partial Pressure	0	liquid	0	Mole Fraction Gas
40	313.15	1.01	1	0.505	1 Partial Pressure	0.100	liquid	0.500	Mole Fraction Gas
40	313.15	2.03	1	1.462	1 Partial Pressure	0.285	liquid	0.720	Mole Fraction Gas
40	313.15	3.04	1	2.420	1 Partial Pressure	0.445	liquid	0.796	Mole Fraction Gas
40	313.15	4.05	1	3.382	1 Partial Pressure	0.587	liquid	0.835	Mole Fraction Gas
40	313.15	5.06	1	4.296	1 Partial Pressure	0.718	liquid	0.849	Mole Fraction Gas
40	313.15	6.08	1	5.168	1 Partial Pressure	0.845	liquid	0.850	Mole Fraction Gas
60	333.15	0.863	1	0	1 Partial Pressure	0	liquid	0	Mole Fraction Gas
60	333.15	1.01	1	0.131	1 Partial Pressure	0.025	liquid	0.130	Mole Fraction Gas
60	333.15	2.03	1	1.096	1 Partial Pressure	0.187	liquid	0.540	Mole Fraction Gas
60	333.15	3.04	1	1.961	1 Partial Pressure	0.334	liquid	0.645	Mole Fraction Gas
60	333.15	4.05	1	2.835	1 Partial Pressure	0.460	liquid	0.700	Mole Fraction Gas
60	333.15	5.06	1	3.653	1 Partial Pressure	0.576	liquid	0.722	Mole Fraction Gas
60	333.15	6.08	1	4.408	1 Partial Pressure	0.685	liquid	0.725	Mole Fraction Gas
80	353.15	1.343	1	0	1 Partial Pressure	0	liquid	0	Mole Fraction Gas
80	353.15	2.03	1	0.641	1 Partial Pressure	0.096	liquid	0.316	Mole Fraction Gas
80	353.15	3.04	1	1.450	1 Partial Pressure	0.225	liquid	0.477	Mole Fraction Gas
80	353.15	4.05	1	2.195	1 Partial Pressure	0.349	liquid	0.542	Mole Fraction Gas
80	353.15	5.06	1	2.914	1 Partial Pressure	0.458	liquid	0.576	Mole Fraction Gas
80	353.15	6.08	1	3.567	1 Partial Pressure	0.565	liquid	0.585	Mole Fraction Gas
100	373.15	1.993	1	0	1 Partial Pressure	0	liquid	0	Mole Fraction Gas
100	373.15	2.03	1	0.016	1 Partial Pressure	0.005	liquid	0.008	Mole Fraction Gas
100	373.15	3.04	1	0.775	1 Partial Pressure	0.130	liquid	0.255	Mole Fraction Gas
100	373.15	4.05	1	1.462	1 Partial Pressure	0.241	liquid	0.361	Mole Fraction Gas
100	373.15	5.06	1	2.964	1 Partial Pressure	0.350	liquid	0.408	Mole Fraction Gas
120	393.15	2.838	1	0	1 Partial Pressure	0	liquid	0	Mole Fraction Gas
120	393.15	3.04	1	0.109	1 Partial Pressure	0.024	liquid	0.036	Mole Fraction Gas
120	393.15	4.05	1	0.648	1 Partial Pressure	0.140	liquid	0.160	Mole Fraction Gas

Notes:
   ¹  Calculated by compiler.

Method/Apparatus/Procedure:
   A static type of solubility equipment was used.

Source and Purity of Materials:
   1. Ethene source and purity not given.
   2. 2-Methylpropane source and purity not given.

Estimated Errors:
   Solubility: δx₁/x₁ = ± 0.02 (compiler)
   Temperature: δT/K = ± 0.5 (compiler)

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Last updated: February 18, 2015 (Created: August 17, 2007)