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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
1-Octanol with Heptane and Water
Components:
(1) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
(2) 1-Octanol (octyl alcohol, capryl alcohol); C8H18O; [111-87-5]
NIST Chemistry WebBook
for detail
(3) Heptane (n-heptane); C7H16; [142-82-5]
NIST Chemistry WebBook
for detail
Original Measurements:
Kiryukhin, A.M.; Lesteva, T.M.; Markuzin, N.P., Prom-st Sint. Kauch. 12, 12 (1981).
Variables:
Temperature = 293 K - 333 K
Prepared By:
A. Skrzecz
Experimental Data:
(Notes on the Nomenclature)
Compositions of coexisting phases
t/°C
T/K
Mass Fraction w
1
Mass Fraction w
2
Mole Fraction x
1
(compiler)
Mole Fraction x
2
(compiler)
Comment(s)
25
293.2
0.0000
0.9999
0.0000
0.9994
organic-rich phase
25
293.2
0.171
0.826
0.135
0.848
organic-rich phase
25
293.2
0.345
0.647
0.277
0.676
organic-rich phase
25
293.2
0.647
0.330
0.521
0.345
organic-rich phase
25
293.2
0.741
0.230
0.593
0.239
organic-rich phase
25
293.2
0.863
0.100
0.685
0.103
organic-rich phase
25
293.2
0.954
0.000
0.742
0.000
organic-rich phase
25
293.2
0.000 00
0.000 003
0.000 000 0
0.000 000 5
water-rich phase
25
293.2
0.000 07
0.000 002
0.000 009 7
0.000 000 4
water-rich phase
25
293.2
0.000 16
0.000 002
0.000 022 1
0.000 000 4
water-rich phase
25
293.2
0.000 31
0.000 001
0.000 042 9
0.000 000 2
water-rich phase
25
293.2
0.000 35
0.000 001
0.000 048 4
0.000 000 2
water-rich phase
25
293.2
0.000 38
0.000 000
0.000 052 6
0.000 000 0
water-rich phase
25
293.2
0.000 42
0.000 000
0.000 058 1
0.000 000 0
water-rich phase
40
313.2
0.0000
0.9999
0.0000
0.9994
organic-rich phase
40
313.2
0.257
0.739
0.206
0.771
organic-rich phase
40
313.2
0.453
0.563
0.369
0.567
organic-rich phase
40
313.2
0.597
0.382
0.479
0.399
organic-rich phase
40
313.2
0.656
0.320
0.527
0.334
organic-rich phase
40
313.2
0.768
0.206
0.628
0.219
organic-rich phase
40
313.2
0.807
0.165
0.659
0.175
organic-rich phase
40
313.2
0.900
0.064
0.724
0.067
organic-rich phase
40
313.2
0.952
0.000
0.733
0.000
organic-rich phase
40
313.2
0.000 00
0.000 006
0.000 000 0
0.000 001 1
water-rich phase
40
313.2
0.000 10
0.000 005
0.000 013 8
0.000 000 9
water-rich phase
40
313.2
0.000 23
0.000 004
0.000 031 8
0.000 000 7
water-rich phase
40
313.2
0.000 25
0.000 003
0.000 034 6
0.000 000 5
water-rich phase
40
313.2
0.000 28
0.000 002
0.000 038 7
0.000 000 4
water-rich phase
40
313.2
0.000 29
0.000 001
0.000 040 1
0.000 000 2
water-rich phase
40
313.2
0.000 34
0.000 001
0.000 047 0
0.000 000 2
water-rich phase
40
313.2
0.000 40
0.000 000
0.000 055 4
0.000 000 0
water-rich phase
40
313.2
0.000 48
0.000 000
0.000 066 4
0.000 000 0
water-rich phase
60
333.2
0.0000
0.9998
0.0000
0.9989
organic-rich phase
60
333.2
0.200
0.799
0.161
0.834
organic-rich phase
60
333.2
0.430
0.558
0.346
0.584
organic-rich phase
60
333.2
0.486
0.498
0.389
0.518
organic-rich phase
60
333.2
0.548
0.434
0.441
0.454
organic-rich phase
60
333.2
0.591
0.388
0.474
0.404
organic-rich phase
60
333.2
0.626
0.349
0.497
0.360
organic-rich phase
60
333.2
0.737
0.233
0.586
0.241
organic-rich phase
60
333.2
0.854
0.109
0.676
0.112
organic-rich phase
60
333.2
0.949
0.000
0.720
0.000
organic-rich phase
60
333.2
0.000 00
0.000 016
0.000 000 0
0.000 002 9
water-rich phase
60
333.2
0.000 12
0.000 012
0.000 016 6
0.000 002 2
water-rich phase
60
333.2
0.000 20
0.000 010
0.000 027 7
0.000 001 8
water-rich phase
60
333.2
0.000 25
0.000 008
0.000 034 6
0.000 001 4
water-rich phase
60
333.2
0.000 28
0.000 005
0.000 038 7
0.000 000 9
water-rich phase
60
333.2
0.000 30
0.000 003
0.000 041 5
0.000 000 5
water-rich phase
60
333.2
0.000 32
0.000 002
0.000 044 3
0.000 000 4
water-rich phase
60
333.2
0.000 34
0.000 001
0.000 047 0
0.000 000 2
water-rich phase
60
333.2
0.000 39
0.000 000
0.000 054 0
0.000 000 0
water-rich phase
60
333.2
0.000 51
0.000 000
0.000 070 6
0.000 000 0
water-rich phase
Method/Apparatus/Procedure:
After separation both phases were analyzed. Concentrations of organic components were determined by glc; water was determined by the Karl Fischer method. To determine hydrocarbon in the water-rich phase, samples were extracted by nonane.
Source and Purity of Materials:
(1) Source not specified; distilled, dried over zeolite; purity >99.9% mass.
(2) Source not specified; distilled; purity >99.9 mass.
(3) Source not specified.
Estimated Errors:
Solubility: Not reported.
Temperature: Not reported.