SDS Volume (2815)

Volume 62. Carbon Dioxide in Water and Aqueous Electrolyte Solutions, p None

Original Measurements

Van Slyke, D. D.; Sendroy Jr., J.; Hastings, A. B.; Neill, J. M.; J. Biol. Chem. 1928, 78, 765-99.

Variables:

Room Temp: 311.2 $\pu{K}$
Pressure: "atmospheric" $\pu{atm}$
Amount concentration (2): C₂/mol L^-1 = 0.01 - 0.300 g/L

Prepared by:

P. Scharlin

Method/Apparatus/Procedure:

Two procedures were used for saturating solutions with $\ce{CO2}$:
Saturation by bubbling (B). The solution was placed in the saturating tube, the lower end of which was connected through a wash bottle with a Kipp $\ce{CO2}$ generator. The tube and wash bottle were immersed in a constant temperature bath. $\ce{CO2}$ gas was bubbled through it rapidly for 30 minutes. The wash bottle was replaced by a mercury reservoir and the free gas was driven completely out of the saturating tube by admitting mercury underneath the solution. The $\ce{CO2}$ contents of the solutions were determined in the manometric gas apparatus [1,2].
Saturation in rotating tonometer (T).
The technique used was that described by Austin et al. [3].
Both procedures gave identical results with solutions of acids and salts.

Source and Purity of Materials:

1. From a Kipp $\ce{CO2}$ generator.
2. Not specified.
3. Distilled.

Estimated Errors:

Ambient temperature: δT/K = ±0.1
Mass concentration (m/v) (1): δα/α = ±0.005

References

¹ Van Slyke, D. D.; Neill, J. M.; J. Biol. Chem. 1924. 61, 523-35.
² Van Slyke, D. D.; Sendroy Jr., J.; J. Biol. Chem. 1927, 73, 127.
³ Austin, J. H.; Cullen, G. E.; Hastings, A. B.; McLean, F. C.; Peters, J. P.; Van Slyke, D. D.; J. Biol. Chem. 1922, 54, 121.