Journal article
A simple model for the hygroscopy of sulfuric acid
- Abstract:
- Sulphuric acid is a highly hygroscopic substance, increasing its volume by absorbing water from high relative-humidity environment. In this paper, we present a mathematical model that describes the hygroscopy of a uniform layer of sulphuric acid with a given initial concentration and relative humidity of the surrounding gaseous environment. We assume that water is absorbed across the gas–liquid interface at a rate proportional to the difference in concentration from the equilibrium value. Our numerical results compare well with asymptotic predictions for small Sherwood number, where we derive an explicit solution. The theory agrees well with experimental data, which supports the validity of the model, and we are able to use the model to determine the rate of absorption, which cannot be found by a direct experimental measurement.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Accepted manuscript, pdf, 5.6MB, Terms of use)
-
- Publisher copy:
- 10.1021/acs.iecr.9b06018
Authors
- Publisher:
- American Chemical Society
- Journal:
- Industrial & Engineering Chemistry Research More from this journal
- Volume:
- 59
- Issue:
- 10
- Pages:
- 4802–4808
- Publication date:
- 2020-02-09
- Acceptance date:
- 2020-02-09
- DOI:
- EISSN:
-
1520-5045
- ISSN:
-
0888-5885
- Language:
-
English
- Keywords:
- Pubs id:
-
1090047
- Local pid:
-
pubs:1090047
- Deposit date:
-
2020-02-28
Terms of use
- Copyright holder:
- American Chemical Society
- Copyright date:
- 2020
- Rights statement:
- © 2020 American Chemical Society
- Notes:
- This is the accepted manuscript version of the article. The final version is available from ACS Publications at: https://doi.org/10.1021/acs.iecr.9b06018
If you are the owner of this record, you can report an update to it here: Report update to this record