When referring to the compilation of Henry's Law Constants, please cite
R. Sander: Compilation of Henry's law constants (version 4.0) for
water as solvent, Atmos. Chem. Phys., 15, 4399-4981 (2015),
Well, I knew it would happen... A big list like this just couldn't be perfect.
I have now added a list of errors that I have made in my compilation.
Errata for version 4.0
If you notice that any Henry's law data (e.g., from your work) are
missing or incorrectly listed, please send an email
- When analyzing H(N2O5) from Fried et al.
(1994), I had incorrectly assumed that they were referring to the
Henry's law constant Hcp (in M/atm). Re-checking that
publication, however, I noticed that they used the dimensionless Henry's
law constant Hcc. The corrected data are:
H(N2O5) = 8.7E-4 mol/(m3*Pa) and a
temperature-dependence of d ln Hcp / d (1/T) = 3600 K.
- Although I correctly cited the value of H(HOBr) > 1.3E2 M/atm
from the JPL Data Evaluation (2011), it turned out that the value given
there was incorrect. The new
Evaluation (2015) presents the corrected value of H(HOBr) > 1.3E3
- Values from the Hazardous Substances Data Bank TOXicology data
NETwork (HSDB-TOXNET) refer to their web pages as retrieved in 2015. For
1-propoxy-2-propanol, and probably for some other compounds as well,
new web page (retrieved 2020) shows different values.
Errata for version 3.99 (already corrected in subsequent versions)
- Bug fix for data in table 5 by Pfeifer et al. (2001).
- The CASRN for tribromomethanol is [5405-30-1].
Errata for version 3 (already corrected in subsequent versions)
Thanks to everyone who informed me about any incorrect data!
- In note 20, the solubility for strong acids should be defind
kH = ([H+] * [A-]) / p(HA)
kH = ([H+] + [A-]) / p(HA)
Thanks to J. C. Wheeler for pointing this out to me.
- There's a nasty little error in the sign
of the temperature dependence in all tables:
The values given in the third column are
d ln kH / d (1/T)
- d ln kH / d (1/T)
The solubility decreases with increasing temperature, of course. This is
shown correctly in equation (5) on page 3.
- Although not mentioned in the table, it should be noted that values
for HCHO refer to effective Henry's law constants that take into account
increased solubility due to the formation of the diol:
HCHO + H2O = CH2(OH)2
- Data from Allen et al. (1998) are measured, not estimated.
- The reference Gmehling et al. (1981) should be: J. Gmehling and U. Onken
and W. Arlt. Vapor-Liquid Equilibrium Data Collection. D. Behrens and R.
Eckermann (eds.). Dechema, Frankfurt/Main Vol. 1a (1981)
- page 15: The value of 1.3E-1 M/atm for 2-methylpentane from
Ashworth et al. (1988) was quoted incorrectly by Staudinger and Roberts
- page 36: The values listed for benzo[a]fluoranthene actually refere
- page 38: The CASRN for 1-heptanol is [111-70-6], not [110-70-6].
- page 41: The value for 1,2-ethanediol from Bone et al. (1983)
should be 4.1E5 M/atm, not 4.0E6 M/atm.
- page 44: The CASRN for methanal (formaldehyde) is [50-00-0], not
- page 60: For 2,2-dimethylpyridine, the temperature dependence is
7000 K, not 700 K.
- page 61: For 2-butyl nitrate, both the trivial name "isobutyl
nitrate" and the CASRN are wrong. The correct CASRN for 2-butyl nitrate
- page 61: The species called tert-butyl nitrate should actually be
- page 75: The value of 2.2 by Hine and Mookerjee (1975) refers to
1,1,1,2-tetrachloroethane, not to 1,1,2,2-tetrachloroethane.
- page 90: The CASRN for 1-butanethiol is [109-79-5], not [109-75-5].
- page 90: The value of 5.8E-1 by Yaws and Yang (1982) refers to
diethyl sulfide, not to diethyl disulfide.
- page 92: The species called 3,4'-PCB is actually 3,4-PCB.
- page 93: The value of 1.4E2 by USEPA (1982) refers to
2,4,6-trichlorophenol, not to 2,4,6-PCB.
* * *
Search Henry's Law Database
* * *
Convert Henry's Law Constants
* * *