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Section: 5 | Solubility of Selected Gases in Water |
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John R. Rumble, ed., CRC Handbook of Chemistry and Physics, 102nd Edition (Internet Version 2021), CRC Press/Taylor & Francis, Boca Raton, FL.
If a specific table is cited, use the format: "Physical Constants of Organic Compounds," in CRC Handbook of Chemistry and Physics, 102nd Edition (Internet Version 2021), John R. Rumble, ed., CRC Press/Taylor & Francis, Boca Raton, FL.

SOLUBILITY OF SELECTED GASES IN WATER

L. H. Gevantman

The values in this table are taken almost exclusively from the International Union of Pure and Applied Chemistry “Solubility Data Series.” Unless noted, they comprise evaluated data fitted to a smoothing equation. The data at each temperature are then derived from the smoothing equation which expresses the mole fraction solubility X1 of the gas in solution as:

ln X1 = A + B/T* + C ln T*

where

T* = T/100 K

All values refer to a partial pressure of the gas of 101.325 kPa (one atmosphere).

The equation constants, the standard deviation for ln X1 (except where noted), and the temperature range over which the equation applies are given in the column headed Equation constants. There are two exceptions. The equation for methane has an added term, DT *. The equation for H2Se and H2S takes the form,

ln X1 = A + B/T + C ln T + DT

where T is the temperature in kelvin.

Solubilities given for those gases that react with water, namely ozone, nitrogen oxides, chlorine and its oxides, hydrogen sulfide, hydrogen selenide, and sulfur dioxide, are recorded as bulk solubilities; i.e., all chemical species of the gas and its reaction products with water are included. The solubility of carbon dioxide (CO2) can be found in "Solubility of Carbon Dioxide in Water at Various Temperatures and Pressures" in this section.

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Solubility of Gases in Water - Constants in the Solubility Equation and Solubility Values at Selected Temperatures



T/KSolubility (X1)Equation constantsRef.
Continued on next page...
Hydrogen (H2) Mr = 2.01588
288.151.510 × 10–5A = –48.16111
293.151.455 × 10–5B = 55.28451
298.151.411 × 10–5C = 16.88931
301.151.377 × 10–5Std. dev. = ±0.54%1
308.151.350 × 10–5Temp. range = 273.15—353.151
Deuterium (D2) Mr = 4.0282
283.151.675 × 10–5 ± 0.57%Averaged experimental values1
288.151.595 × 10–5 ± 0.57%1
293.151.512 × 10–5 ± 0.78%Temp. range = 278.15—303.151
298.151.460 × 10–5 ± 0.52%1
303.151.395 × 10–5 ± 0.37%1
Helium (He) Ar = 4.0026
288.157.123 × 10–6A = –41.46112
293.157.044 × 10–6B = 42.59622
298.156.997 × 10–6C = 14.00942
303.156.978 × 10–6Std. dev. = ±0.54%2
308.156.987 × 10–6Temp. range = 273.15—348.152
Neon (Ne) Ar = 20.1797
288.158.702 × 10–6A = –52.85732
293.158.395 × 10–6B = 61.04942
298.158.152 × 10–6C = 18.91572
303.157.966 × 10–6Std. dev. = ±0.47%2


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