IUPAC-NIST Solubilities Database

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:
   Rebert, C.J.; Hayworth, K.E., Am. Inst. Chem. Engnrs. J. 1967, 13, 118-121.

Variables:
   Temperature = Pressure and temperature on one phase-two phase boundary

Prepared By:
   C.L. Young

Experimental Data:   (Notes on the Nomenclature)

Smoothed data
t/°C	T/K	Pressure [MPa]	g₁/100 g solution	Mole Fraction x₁
320	593	11.43	2.7	0.0059
330	603	13.06	2.7	0.0059
340	613	14.92	2.7	0.0059
350	623	16.86	2.7	0.0059
360	633	19.21	2.7	0.0059
370	643	21.83	2.7	0.0059
370.6	643.8(a)	22.14	2.7	0.0059
320	643	22.06	2.7	0.0059
360	633	20.07	2.7	0.0059
350	623	18.25	2.7	0.0059
340	613	16.65	2.7	0.0059
330	603	15.23	2.7	0.0059
320	593	14.17	2.7	0.0059
310	583	13.39	2.7	0.0059
307	580	13.24	2.7	0.0059
304	577	13.21	2.7	0.0059
302	575	13.28	2.7	0.0059
300	573	13.69	2.7	0.0059
295	568	15.88	2.7	0.0059
292	565	17.52	2.7	0.0059
290	563	18.63	2.7	0.0059
330	603	13.46	2.7	0.0059
340	613	15.44	9.0	0.021
350	623	17.70	9.0	0.021
360	633	20.61	9.0	0.021
362	635	21.38	9.0	0.021
363.3	636.5	21.94	9.0	0.021
362	635	22.32	9.0	0.021
360	633	22.45	9.0	0.021
359.4	632.6(a)	22.49	9.0	0.021
359	632	22.51	9.0	0.021
358	631	22.54	9.0	0.021
356	629	22.62	9.0	0.021
354	627	22.71	9.0	0.021
352	625	22.81	9.0	0.021
350	623	22.96	9.0	0.021
348	621	23.16	9.0	0.021
346	619	23.48	9.0	0.021
235	507	3.68	33.3	0.0966
245	517	4.36	33.3	0.0966
255	527	5.18	33.3	0.0966
265	537	6.10	33.3	0.0966
275	547	7.12	33.3	0.0966
285	557	8.25	33.3	0.0966
295	567	9.57	33.3	0.0966
300	573	10.30	33.3	0.0966
305	578	11.07	33.3	0.0966
310	583	11.96	33.3	0.0966
315	588	12.87	33.3	0.0966
320	593	13.79	33.3	0.0966
325	598	14.96	33.3	0.0966
330	603	16.13	33.3	0.0966
335	608	17.50	33.3	0.0966
340	613	19.07	33.3	0.0966
220	493	3.68	60.0	0.0243
230	503	4.47	60.0	0.0243
240	513	5.35	60.0	0.0243
250	523	6.30	60.0	0.0243
260	533	7.45	94.8	0.0796
270	543	8.78	94.8	0.0796
280	553	10.29	94.8	0.0796
290	563	12.17	94.8	0.0796
300	573	14.32	94.8	0.0796
310	583	17.79	94.8	0.0796
220	493	2.42	94.8	0.0796
230	503	2.88	94.8	0.0796
240	513	3.42	94.8	0.0796
250	523	4.09	94.8	0.0796
260	533	4.86	94.8	0.0796
262	535	5.06	94.8	0.0796
264	537	5.28	94.8	0.0796
266	539	5.54	94.8	0.0796
268.6	542.1	6.25	94.8	0.0796
268	541	6.60	94.8	0.0796
267.2	540.4	6.73	94.8	0.0796
267	540	6.76	94.8	0.0796
263	536	7.06	94.8	0.0796
261	534	7.08	94.8	0.0796
260	533	7.06	94.8	0.0796
255	528	6.93	94.8	0.0796
250	523	6.76	94.8	0.0796
245	518	6.56	94.8	0.0796
243.2	516.4	6.48	94.8	0.0796	b
130	403	0.66	94.8	0.0796
140	413	0.86	94.8	0.0796
150	423	1.08	94.8	0.0796
160	433	1.32	94.8	0.0796
170	443	1.63	94.8	0.0796
180	453	2.01	94.8	0.0796
190	463	2.46	94.8	0.0796
200	473	2.99	94.8	0.0796
210	483	3.58	94.8	0.0796
220	493	4.32	94.8	0.0796
230	503	5.18	94.8	0.0796
235	508	5.64	94.8	0.0796
240	513	6.14	94.8	0.0796
245	518	6.68	94.8	0.0796
250	523	7.28	94.8	0.0796
255	528	7.92	94.8	0.0796
255.7	528.9	8.01	94.8	0.0796

Notes:
   Table 1  ^a  Critical Point
   Table 1  ^b  Three-phase point.

Method/Apparatus/Procedure:
   Samples of mixtures of known composition confined over mercury. Samples heated in a vapor bath and the pressure-temperature phase boundaries determined by direct observation of appearance of disappearence of a phase. Apparatus similar to that described in ref. (1).

Source and Purity of Materials:
   (1) No details given.

Estimated Errors:

   Temperature: δT/K = ± 0.05; deltap/psi = ± 1.

References:
   ¹Rebert, C. J.; Kay, W.B. Am. Inst. Chem. Engnrs. J. 1959, 5, 285.