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pH values of certain phosphate-chloride mixtures, and the second dissociation constant of phosphoric acid from 0 degrees to 60 degrees C
Open accessAbstract
Measurements of the electromotive forces of galvanic cells composed of hydrogen and silver-silver-chloride electrodes in aqueous chloride-phosphate sol utions 'were made at 5-degree intervals from 0 to 60 C. The solut ions were mixtures of sodium chloride, disodium hydroge n phosphate, and either sodium or potass ium dihydrogen phosphate ; three ratios of the molalities of the two phosphate salts were employed, and a wide range of concentrations was covered. The second dissociation constant was evaluated from the experimental data. The values of the negative logarithm of the const ant at each of the 13 t emperatures studied may be computed from the following eq uation: pK2= 1979.5/ T -5.3541 + 0.019840T, where T is in degrees Kelvin.
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Cited by
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Metadata
- Authors
- Bates, R. G., & Acree, S. F.
- Venue
- Journal of Research of the National Bureau of Standards
- Published
- 1943-02
- Volume
- 30
- Issue
- 2
- Pages
- 129
- ISSN
- 0091-0635 (ISSN-L)
- OpenAlex
- W2315663077
- Cited by
- 164
- References
- 0
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Bates, R. G., & Acree, S. F. (1943). pH values of certain phosphate-chloride mixtures, and the second dissociation constant of phosphoric acid from 0 degrees to 60 degrees C. Journal of Research of the National Bureau of Standards. https://doi.org/10.6028/jres.030.012
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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