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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Carbon dioxide with Poly(vinyl acetate) (PVA)
Components:
(1) Poly(vinyl acetate) (PVA); ; [9003-20-7]
NIST Chemistry WebBook
for detail
(2) Carbon dioxide; CO2; [124-38-9]
NIST Chemistry WebBook
for detail
Original Measurements:
S. Takishima, K. Nakamura, M. Sasaki and H. Masuoka, Sekiyu Gakkaishi 33, 332-336 (1990).
Variables:
Temperature = 313.2 K and 323.2 K
Pressure = 0.898-8.755 MPa
Prepared By:
Yu. P. Yampol'skii
Experimental Data:
(Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
Solubility of carbon dioxide in PVA expressed as mass fractions
w
T/K
Pressure [MPa]
Mass Fraction (w
1
)
313.2
1.258
0.0416
313.2
1.449
0.0532
313.2
2.650
0.0936
313.2
3.467
0.1264
313.2
3.846
0.1429
313.2
4.583
0.1723
313.2
5.659
0.2123
313.2
6.885
0.2786
313.2
8.755
0.3909
323.2
0.898
0.0254
323.2
1.819
0.0485
323.2
1.906
0.0533
323.2
3.309
0.0978
323.2
4.698
0.1397
323.2
5.655
0.1696
323.2
6.519
0.2073
323.2
7.861
0.2668
Method/Apparatus/Procedure:
Measurements of the solubility were made using a pressure decay method. The apparatus was similar to one designed by Koros
1
. Pressure was measured by a semiconductor sensor PX-1A (Tsukasu Sokken). The correction for compressibility of gas phase was introduced.
Source and Purity of Materials:
PVA (Aldrich Chemical Co) had "viscosity" average molecular weight 158,000 and glass transition temperature 303 K. The purity of carbon dioxide (Chugoku Teisan) was 99.9 %.
Estimated Errors:
References:
1
Koros W.J. Ph.D.Dissertation, The University of Texas at Austin, 1977.