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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
2,4-Dimethylpentane with Water
Components:
(1) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
(2) 2,4-Dimethylpentane; C7H16; [108-08-7]
NIST Chemistry WebBook
for detail
Original Measurements:
Polak, J.; Lu, B.C.Y., Can. J. Chem. 1973, 51, 4018-23.
Variables:
Temperature = 0-25 °C
Prepared By:
M.C. Haulait-Pirson
Experimental Data:
(Notes on the Nomenclature)
Solubility of 2,4-dimethylpentane in water
t/°C
10
3
* g
1
/kg
Mole Fraction x
1
(compiler)
0(a)
6.50
c
1.17 x 10
-6
25(b)
5.50
c
9.88 x 10
-7
Solubility of water in 2,4-dimethylpentane
t/°C
10
3
* g
2
/kg
g
2
/kg Note
Mole Fraction x
2
(compiler)
0(a)
31
d
1.73 x 10
-4
25(b)
81
e
4.51 x 10
-4
Notes:
Table 1
a-e
see "ESTIMATED ERROR"
Method/Apparatus/Procedure:
The solubility of (1) in (2) was determined by gas chromatography. The solubility of (2) in (1) was determined by Karl Fischer titration. 50 mL of (1) together with 50 mL of (2) were placed in a 125 mL Hypovial closed with a Teflon coated rubber septum and placed in a constant-temperature water bath. The system was stirred magnetically for 24 hr or was kept in the bath without stirring for at least 7 days before samples were taken for analysis. Details of the analysis are given in the paper.
Source and Purity of Materials:
(1) Phillips Petroleum Co.; pure grade reagent (99%+); shaken three times with distilled water.
(2) distilled.
Estimated Errors:
Solubility: c) ± 1.7%; d) ± 4.7%; e) ± 3.1% (mean)
Temperature: a) ± 0.02 K; b) ± 0.01 K