IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Nitrogen with Carbon dioxide, Methane, Ethane and Polysulfone (PSF)

Components:
   (1) Nitrogen with Carbon dioxide, Methane, Ethane; N2, CO2, CH4, C2H6; [7727-37-9, 124-38-9, 74-82-8, 74-84-0]  NIST Chemistry WebBook for detail
   (2) Polysulfone (PSF); ; [25135-51-7]  NIST Chemistry WebBook for detail

Original Measurements:
   Y. Kamiya, T. Hirose, K. Mizoguchi and K. Terada, J. Polym. Sci., Part B: Polym. Phys. 24, 1525 (1986).

Variables:
   Temperature = 308 K - 338 K
   Pressure = 0-5.0 MPa

Prepared By:
   A.K. Bokarev

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

Table 1. Sorption and desorption isotherms of carbon dioxide in polysulfone at 308 K (The original data were represented graphically)
Pressure [MPa]	Sorption [(V₁(STP)/V₂)]	Pressure [MPa]	Desorption [(V₁(STP)/V₂)]	Remark(s)
0.11	3.66	0.14	7.09	First series (“as received” film)
0.33	8.07	0.39	16.48	First series (“as received” film)
0.69	13.24	0.67	22.44	First series (“as received” film)
1.16	17.85	1.18	29.92	First series (“as received” film)
2.03	25.64	2.00	36.94	First series (“as received” film)
3.50	34.70	3.00	41.39	First series (“as received” film)
4.96	43.54	3.94	43.52	First series (“as received” film)
0.14	5.98	0.24	11.4	Second series
0.32	11.73	1.60	33.99	Second series
0.58	16.13	3.58	42.33	Second series
0.99	21.52	4.93	44.65	Second series
1.50	26.46	—	—	Second series
2.04	30.73	—	—	Second series
2.83	35.65	—	—	Second series
3.69	39.67	—	—	Second Series
4.31	42.49	—	—	Second Series

Table 2. Sorption and desorption isotherms of carbon dioxide in polysulfone measured after CO₂ sorption experiment at 208 K (The original data were represented graphically)
T/K	Pressure [MPa]	Solubility [(V₁(STP)/V₂)]	Remark(s)
318	0.34	9.93	Sorption
318	0.85	16.91	Sorption
318	1.19	20.18	Sorption
318	1.58	22.42	Sorption
318	1.87	25.09	Sorption
318	2.47	28.07	Sorption
318	3.07	30.46	Sorption
318	3.63	32.70	Sorption
318	4.33	34.80	Sorption
318	5.04	37.20	Sorption
318	0.12	6.96	Desorption
318	0.37	13.78	Desorption
318	0.64	18.38	Desorption
318	1.16	24.33	Desorption
318	1.60	27.75	Desorption
318	2.06	30.43	Desorption
318	2.47	32.37	Desorption
318	3.04	34.17	Desorption
318	3.54	35.67	Desorption
318	4.14	36.57	Desorption
318	4.95	37.19	Desorption
328	0.33	8.00	Sorption
328	0.52	9.93	Sorption
328	0.81	13.05	Sorption
328	1.06	15.43	Sorption
328	1.54	18.71	Sorption
328	1.86	20.94	Sorption
328	2.47	23.78	Sorption
328	3.10	26.46	Sorption
328	3.57	28.26	Sorption
328	4.03	29.90	Sorption
328	4.53	31.25	Sorption
328	5.00	32.90	Sorption
328	0.15	5.92	Desorption
328	0.39	11.56	Desorption
328	0.65	15.87	Desorption
328	1.07	20.18	Desorption
328	1.52	23.15	Desorption
328	2.03	25.99	Desorption
328	2.55	27.93	Desorption
328	3.06	29.43	Desorption
328	3.63	30.78	Desorption
328	4.32	32.13	Desorption
338	0.10	2.81	Sorption
338	0.31	6.37	Sorption
338	0.60	9.64	Sorption
338	0.82	11.87	Sorption
338	1.15	14.70	Sorption
338	1.54	17.08	Sorption
338	1.87	19.16	Sorption
338	2.37	21.40	Sorption
338	2.91	23.35	Sorption
338	3.28	24.69	Sorption
338	3.85	26.49	Sorption
338	4.40	27.84	Sorption
338	4.92	29.49	Sorption
338	0.18	6.22	Desorption
338	0.40	10.52	Desorption
338	0.70	14.09	Desorption
338	0.88	16.02	Desorption
338	1.27	19.15	Desorption
338	1.59	20.93	Desorption
338	1.95	22.72	Desorption
338	2.53	24.96	Desorption
338	2.98	26.16	Desorption
338	3.49	27.66	Desorption
338	4.00	28.57	Desorption
338	4.47	29.32	Desorption
338	4.83	29.78	Desorption

Table 3. Sorption and desorption isotherms of carbon dioxide in polysulfone measured after CO₂ sorption experiment at 308 K (The original data were represented graphically)
Pressure [MPa]	Sorption [(V₁(STP)/V₂)]
0.12	5.65
0.30	9.12
0.52	11.80
0.84	14.65
1.09	15.50
1.14	16.37
2.03	19.53
3.04	21.98
0.10	7.39	7.39
0.30	12.16	12.16
0.55	15.53	15.53
1.05	18.63	18.63
1.97	21.27	21.27

Table 4. Sorption and desorption isotherms of CH₄ and N₂ in polysulfone at 308 K, measured after CO₂ sorption experiments (The original data were represented graphically)
Chemical Name	Pressure [MPa]	Sorption [(V₁(STP)/V₂)]	Pressure [MPa]	Desorption [(V₁(STP)/V₂)]
CH4	0.11	1.39	0.11	1.64
CH4	0.31	3.14	0.29	3.54
CH4	0.60	5.35	0.58	5.68
CH4	1.07	7.24	1.11	8.04
CH4	1.55	9.30	2.04	11.17
CH4	2.53	11.91	3.02	13.15
CH4	3.05	12.59	4.00	14.61
CH4	4.03	14.37	5.03	15.68
CH4	5.00	15.53	—	—
N2	0.12	0.29	0.12	0.44
N2	0.23	0.48	0.31	0.84
N2	0.45	1.06	0.41	1.12
N2	0.62	1.47	1.09	2.46
N2	1.14	2.37	1.59	3.18
N2	2.05	3.80	2.60	4.63
N2	2.74	4.69	3.52	5.52
N2	3.50	5.43	4.36	6.30
N2	4.19	6.06	—	—
N2	4.88	6.61	—	—
N2	4.97	6.63	—	—

Table 5. Dual mode sorption parameters for nitrogen in polysulfone at 308 K
Henry's law constant, K [cm³(STP)/cm³ atm]	Langmuir's parameter, C_H [cm³(STP) cm^-3]	Affinity Coefficient b [atm^-1]
0.043	7.5	0.031

Method/Apparatus/Procedure:
   Sorption isotherms for gases in the polymer were obtained gravimetrically using a Cahn Model 2000 electrobalance. Details of this apparatus were described previously.

Source and Purity of Materials:
   Gas purity: CO₂ 99.99%, CH4 99.9%, C₂H₆ 99.7%. PSF (Udel Polysulfone): Nissan Chemical Industries Ltd., densities (at 298 K) 1.240 g/cm³ (“as received”) and 1.238 g/cm³ (after CO₂ exposure), glass transition temperature 455 K.

Estimated Errors:

   Temperature: No information given.

References:
   ¹Y Kamiya, K. Mizoguchi, Y. Naito, and T. Hirose, J. Polym. Sci., Polym. Phys. Ed. 24, 535 (1986).