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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Ethene with Phosphoric acid, tributyl ester (tributyl phosphate)
Components:
(1) Phosphoric acid, tributyl ester (tributyl phosphate); C12H27O4P; [126-73-8]
NIST Chemistry WebBook
for detail
(2) Ethene; C2H4; [74-85-1]
NIST Chemistry WebBook
for detail
Original Measurements:
Kosyakov, N.E.; Yushko, V.L.; Sergienko, I.D.; Khokhlov, C.F.; Taraba, P.F., Khim. Prom. 1972, 48, 432-433.
Variables:
Temperature = 223 K to 313 K
Pressure = 101.3 (1 atm)
Prepared By:
W. Hayduk
Experimental Remarks:
Data measured at several pressures between 100 and 760 mm mercury pressure shows that Henry's law is obeyed.
Experimental Data:
(Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
t/°C
T/K
Temp Note
Henry's law constant, K [atm (mole fraction)–1]
Henry Constant Note
Mole Fraction (x
1
)
x
1
Note
40
313.15
1
45.2
2
0.0221
2
20
293.15
1
34.1
2
0.0293
2
0
273.15
1
24.9
2
0.0401
2
−20
253.15
1
16.9
2
0.0593
2
−40
233.15
1
10.9
2
0.0921
2
−50
223.15
1
8.33
2
0.120
2
Notes:
1
Calculated by compiler.
2
Only graphical data given in paper; mole fraction solubility,
x
1
, read from enlarged graph corresponding to a gas partial pressure of 101.325 kPa.
Method/Apparatus/Procedure:
A static method was used. Details are given in Ref. 1.
Source and Purity of Materials:
1. Ethene minimum purity 99.0 mole %.
2. Purity and source unspecified.
Estimated Errors:
Solubility: δ
x
1
/
x
1
= ± 2% (Original data)
δx
1
/x
1
= ± 4% (As read from graph by compiler)
References:
1. Braude, G.E.; Shakhova, C.F., Khim. Prom. 1961, 3, 177.