IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: 2-methyl-2-propanol with 1-Butene and Water

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Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) 1-Butane; C4H8; [106-98-9]  NIST Chemistry WebBook for detail
   (3) 2-Methyl-2-propanol (tert-butanol,tert-butyl alcohol); C4H10O; [75-65-0]  NIST Chemistry WebBook for detail

Original Measurements:
   Vasileva, I.I.; Naymova, A.A.; Polyakov, A.A.; Tyvina, T.N.; Fokina, V.V.; Khrabrova, N.G., Zh. Prikl. Khim. (Leningrad) 63, 1432-6 (1990).

Variables:
   Temperature = 293 K - 453 K

Prepared By:
   A. Skrzecz

Experimental Data:   (Notes on the Nomenclature)
  

Compositions along the saturation curve

t/°C	T/K	Mass Fraction w1 (compiler)	Mass Fraction w2 (compiler)	Mole Fraction x1	Mole Fraction x2
48.0	321.15	0.2023	0.0032	0.0582	0.0012
174.6	447.75	0.2974	0.0136	0.0944	0.0057
137.8	410.95	0.3189	0.0091	0.1030	0.0039
10.0	283.15	0.3198	0.0091	0.1034	0.0039
180.8	453.95	0.3438	0.0248	0.1156	0.0110
126.2	399.35	0.3480	0.0120	0.1161	0.0053
136.4	409.55	0.3968	0.0150	0.1399	0.0070
39.0	312.15	0.3967	0.0157	0.1399	0.0073
182.0	455.15	0.4348	0.0460	0.1652	0.0231
133.8	406.95	0.4438	0.0220	0.1662	0.0109
40.5	313.65	0.4439	0.0230	0.1664	0.0114
138.6	411.75	0.5193	0.0314	0.2155	0.0172
79.9	353.05	0.5679	0.0401	0.2542	0.0237
107.0	380.15	0.5679	0.0401	0.2542	0.0237
129.2	402.35	0.6243	0.0828	0.3220	0.0564
118.0	391.15	0.6309	0.0791	0.3271	0.0542
57.0	330.15	0.6309	0.0791	0.3271	0.0542
100.0	373.15	0.6468	0.1011	0.3559	0.0735
135.6	408.75	0.6498	0.1481	0.3875	0.1167
105.0	378.15	0.5806	0.3504	0.4374	0.3487
143.0	416.15	0.5000	0.4420	0.3780	0.4415
180.0	453.15	0.4365	0.4906	0.3152	0.4680

Compositions of coexisting phases

t/°C	T/K	Mass Fraction w1 (compiler)	Mass Fraction w2 (compiler)	Mole Fraction x1	Mole Fraction x2	Comment(s)
20	293.2	0.000 00	0.999 97	0.000 00	0.999 906	hydrocarbon-rich phase
20	293.2	0.000 93	0.998 69	0.000 70	0.998 10	hydrocarbon-rich phase
20	293.2	0.0268	0.9725	0.0204	0.9774	hydrocarbon-rich phase
20	293.2	0.0454	0.9536	0.0347	0.9624	hydrocarbon-rich phase
20	293.2	0.3948	0.0151	0.1389	0.0070	hydrocarbon-rich phase
20	293.2	0.000 00	0.000 72	0.000 00	0.000 23	water-rich phase
20	293.2	0.011 82	0.000 71	0.002 90	0.000 23	water-rich phase
20	293.2	0.042 97	0.000 81	0.010 80	0.000 27	water-rich phase
20	293.2	0.062 67	0.000 80	0.016 00	0.000 27	water-rich phase
20	293.2	0.3948	0.0151	0.1389	0.0070	water-rich phase
40	313.2	0.3948	0.0151	0.1389	0.0070	hydrocarbon-rich phase
40	313.2	0.3948	0.0151	0.1389	0.0070	water-rich phase

t/°C	T/K	Pressure [atm]	Mass Fraction w1 (compiler)	Mass Fraction w2 (compiler)	Mole Fraction x1	Mole Fraction x2	Comment(s)
80	353.2	1200	0.0000	0.9973	0.0000	0.9916	hydrocarbon-rich phase
80	352.2	1160	0.0197	0.9771	0.0149	0.9753	hydrocarbon-rich phase
80	352.2	1080	0.0811	0.9105	0.0615	0.9123	hydrocarbon-rich phase
80	352.2	690	0.06318	0.1002	0.3384	0.0709	hydrocarbon-rich phase
80	352.2	390 (a)	0.3948	0.0151	0.1389	0.0070	hydrocarbon-rich phase
80	352.2	1200	0.000 00	0.000 84	0.0000	0.000 27	water-rich phase
80	352.2	1160	0.007 77	0.000 84	0.0019	0.000 27	water-rich phase
80	352.2	1080	0.027 38	0.000 91	0.0068	0.000 30	water-rich phase
80	352.2	690	0.162 80	0.001 99	0.0452	0.000 73	water-rich phase
80	352.2	390 (a)	0.3948	0.0151	0.1389	0.0070	water-rich phase
138	411.2	3790	0.0000	0.9859	0.0000	0.9575	hydrocarbon-rich phase
138	411.2	3230	0.1428	0.8352	0.1068	0.8255	hydrocarbon-rich phase
138	411.2	2450	0.5700	0.3400	0.4102	0.3232	hydrocarbon-rich phase
138	411.2	1530	0.6334	0.0843	0.3323	0.0584	hydrocarbon-rich phase
138	411.2	1000 (a)	0.3948	0.0151	0.1389	0.0070	hydrocarbon-rich phase
138	411.2	3790	0.000 00	0.001 80	0.000 00	0.000 58	water-rich phase
138	411.2	3230	0.015 83	0.001 78	0.003 90	0.000 58	water-rich phase
138	411.2	2450	0.061 02	0.022 22	0.015 80	0.007 60	water-rich phase
138	411.2	1530	0.154 11	0.002 99	0.042 50	0.001 09	water-rich phase
138	411.2	1000 (a)	0.3948	0.0151	0.1389	0.0070	water-rich phase
154	427.2	1840 (a)	0.3949	0.0199	0.1396	0.0093	hydrocarbon-rich phase
154	427.2	1840 (a)	0.3949	0.0199	0.1396	0.0093	water-rich phase
180	453.2	2500 (a)	0.3898	0.0301	0.1384	0.0141	hydrocarbon-rich phase
180	453.2	2500 (a)	0.3898	0.0301	0.1384	0.0141	water-rich phase

Notes:
   ^a  Plait point.

Method/Apparatus/Procedure:
   The synthetic method with glass ampoules, described in Ref. 1, was used to visually determine the phase transition (mass of components in the vapor phase was neglected). Temperature was measured with a mercury thermometer. Compositions of coexisting phases in equilibrium (two liquids and vapor) were determined in a static apparatus. The liquid phases were analyzed by glc. (The pressure was reported during the measurements at  temperatures higher than 353.2 K).

Source and Purity of Materials:
   (1) Source not specified.
   (2) Source not specified.
   (3) Source not specified.

Estimated Errors:
   Solubility: Not reported.
   Temperature: Temp. ±0.2°C (saturation curve) and ±0.5°C (phase equilibrium).

References:
   ¹ C. M. Khodeeva, and E. C. Lebedeva, Zh. Fiz. Khim. 40, 3105 (1966).

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