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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Cyclohexane with Water
Components:
(1) Cyclohexane; C6H12; [110-82-7]
NIST Chemistry WebBook
for detail
(2) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
Original Measurements:
Bröllos, K.; Peter, K.; Schneider, G.M., Ber. Bunsenges. Phys. Chem. 1970, 74, 682-6.
Variables:
Temperature = Pressure and temperature on one phase-two phase boundary
Prepared By:
C.L. Young
Experimental Data:
(Notes on the Nomenclature)
Values of pressure and temperature on the one phase-two phase boundary
T/K
Pressure [bar]
g
1
/100 g solution
Mole Fraction x
1
379.8
1742
34.1
0.100
369.0
1403
34.1
0.100
363.0
1200
34.1
0.100
360.1
1000
34.1
0.100
351.5
798
34.1
0.100
343.5
595
34.1
0.100
333.7
395
34.1
0.100
329.2
328
34.1
0.100
330.0
293
34.1
0.100
333.0
271
34.1
0.100
334.2
245
34.1
0.100
338.0
217
34.1
0.100
392.2
1600
45.2
0.150
384.0
1400
45.2
0.150
376.5
1202
45.2
0.150
369.2
1000
45.2
0.150
361.2
800
45.2
0.150
351.0
600
45.2
0.150
346.5
500
45.2
0.150
340.0
394
45.2
0.150
338.0
347
45.2
0.150
339.0
299
45.2
0.150
340.5
250
45.2
0.150
357.7
222
45.2
0.150
403.5
1610
53.9
0.200
393.9
1408
53.9
0.200
387.0
1204
53.9
0.200
378.7
1002
53.9
0.200
369.0
800
53.9
0.200
359.5
600
53.9
0.200
352.2
500
53.9
0.200
347.0
416
53.9
0.200
343.0
328
53.9
0.200
342.0
298
53.9
0.200
345.0
246
53.9
0.200
355.0
223
53.9
0.200
412.4
1600
66.5
0.298
404.7
1400
66.5
0.298
396.2
1200
66.5
0.298
387.1
1004
66.5
0.298
375.3
800
66.5
0.298
363.8
600
66.5
0.298
360.4
550
66.5
0.298
349.2
398
66.5
0.298
346.2
339
66.5
0.298
346.5
237
66.5
0.298
349.5
224
66.5
0.298
352.7
214
66.5
0.298
414.9
1600
75.7
0.400
406.5
1398
75.7
0.400
399.2
1200
75.7
0.400
390.1
995
75.7
0.400
378.0
800
75.7
0.400
364.3
600
75.7
0.400
355.6
465
75.7
0.400
347.6
352
75.7
0.400
345.0
295
75.7
0.400
342.0
230
75.7
0.400
335.0
195
75.7
0.400
421.5
1718
82.4
0.500
419.0
1645
82.4
0.500
416.5
1584
82.4
0.500
408.0
1406
82.4
0.500
399.0
1195
82.4
0.500
388.9
1004
82.4
0.500
376.0
789
82.4
0.500
364.0
600
82.4
0.500
350.0
460
82.4
0.500
340.1
375
82.4
0.500
343.0
330
82.4
0.500
338.5
250
82.4
0.500
330.0
200
82.4
0.500
413.0
1603
87.5
0.600
405.4
1405
87.5
0.600
395.8
1200
87.5
0.600
386.4
1000
87.5
0.600
375.3
800
87.5
0.600
362.0
595
87.5
0.600
345.7
395
87.5
0.600
336.2
319
87.5
0.600
333.4
290
87.5
0.600
329.4
261
87.5
0.600
326.5
243
87.5
0.600
323.1
220
87.5
0.600
318.5
205
87.5
0.600
406.7
1600
91.6
0.700
499.0
1405
91.6
0.700
389.1
1200
91.6
0.700
380.5
1000
91.6
0.700
367.2
800
91.6
0.700
351.1
588
91.6
0.700
332.5
400
91.6
0.700
325.0
342
91.6
0.700
314.0
299
91.6
0.700
300.5
250
91.6
0.700
395.4
1605
96.9
0.800
387.1
1403
96.9
0.800
377.6
1200
96.9
0.800
367.2
1005
96.9
0.800
353.9
800
96.9
0.800
337.5
600
96.9
0.800
316.5
400
96.9
0.800
305.0
295
96.9
0.800
295.1
244
96.9
0.800
275.2
200
96.9
0.800
Method/Apparatus/Procedure:
Measurements were made in a steel optical cell within an aluminum block furnace. The cell contents were stirred magnetically. Pressure was measured using a movable piston and Bourdon gauge. Temperature was measured with a steel-sheathed thermocouple. Components were charged into the cell and the transition from one phase to two phases was observed visually.
Source and Purity of Materials:
(1) Merck sample purity 99.9 mole per cent.
(2) Twice distilled.
Estimated Errors:
Temperature: δT/K = ± 0.1
Pressure: δP/P = ± 0.01 (estimated by compiler)