Components:
(1) Ethylene,
C2H4; [74-85-1]
NIST WebBook
(2) Potassium bicarbonate,
KHCO3; [298-14-6]
NIST WebBook
(3) Dipotassium carbonate,
K2CO3; [584-08-7]
NIST WebBook
(4) Water,
H2O; [7732-18-5]
NIST WebBook
Original Measurements
Onda, K.; Sada, E.; Kobayashi, T.; Kito, S.; Ito, K.; J. Chem. Eng. Jpn. 1970, 3, 137-142.
Variables:
Ambient temperature: 298.15 K
Pressure: 101.3 kPa
Prepared by:
Method/Apparatus/Procedure:
Concentrated solution prepared by weighing, less Concentrated solution prepared by weighing, less concentrated solutions prepared by subsequent dilution. Equilibrium established between a measured volume of gas and a measured amount of gas-free liquid in a cell fitted with a magnetic stirrer. Amount of gas absorbed estimated from change in volume of gas. Details in source and Ref. 1.
Source and Purity of Materials:
- Commercial sample, purity 99.6 mole%.
- Analytical grade sample.
- Analytical grade sample.
- No information given.
Estimated Errors:
Ambient temperature: δT/K = ±0.2 (estimated by compiler)
Mass concentration (m/v) (1): δα = ±0.2%. (estimated by compiler)
References
1 Onda, K.; Sada, E.; Kobayashi, T.; Kito, S.; Ito, K.; J. Chem. Eng. Jpn. 1970, 3, 18-24.
Experimental Values:
Note: Pressure = 1 atmosphere = 1.01325 × 105 Pa.| T (K) | C3 (mol/L) | α (cm3(g) cm-3(l) atm-1) | C2 (mol/L) | I (mol/L) |
|---|---|---|---|---|
| 298.15 | 1.6 x 10-2 | 9.83 x 10-2 | 2.39 x 10-1 | 2.86 x 10-1 |
| 298.15 | 3.6 x 10-2 | 8.05 x 10-2 | 5.38 x 10-1 | 6.45 x 10-1 |
| 298.15 | 3.9 x 10-2 | 8.48 x 10-2 | 5.87 x 10-1 | 7.04 x 10-1 |
| 298.15 | 5.8 x 10-2 | 7.09 x 10-2 | 8.73 x 10-1 | 1.046 |
| 298.15 | 7.2 x 10-2 | 6.27 x 10-2 | 1.084 | 1.299 |
(a) Quoted in original paper. (b) Calculated from ionic strength and ratio of ionic strengths due to the two salts given in paper.
