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Ion product of water substance, 0–1000 °C, 1–10,000 bars New International Formulation and its background
Abstract
This paper is the background for a new international formulation for the ion product of water substance (May 1980) issued by the International Association for the Properties of Steam. The ion product of water (Kw) is represented by an equation, based on density and two quadratic functions of reciprocal absolute temperature, for use from 0 to 1000 °C and 1 to 10,000 bars pressure. The equation is believed to describe within ±0.01 units of log Kw* (where Kw* equals Kw/(mol kg−1)2) many of the measurements at saturated vapor pressure up to 200 °C, and to within ±0.02 units up to the critical temperature (374 °C). It also describes within the experimental uncertainty the several sets of measurements at high pressures and should provide values within ±0.05 and 0.30 units at low and high temperatures, respectively.
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Citations
Cited by
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Akiya, N., & Savage, P. E. (2002) · Chemical Reviews · doi:10.1021/cr000668w · Cited by 1,581
Wagner, T., Kulik, D. A., Hingerl, F. F., & Dmytrieva, S. V. (2012) · The Canadian Mineralogist · doi:10.3749/canmin.50.5.1173 · Cited by 621
A review on the current status of various hydrothermal technologies on biomass feedstock
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Shuping, Z., Yulong, W., Mingde, Y., Kaleem, I., Chun, L., & Tong, J. (2010) · Energy · doi:10.1016/j.energy.2010.07.013 · Cited by 461
Metadata
- Authors
- Marshall, W. L., & Franck, E. U.
- Venue
- Journal of Physical and Chemical Reference Data
- Publisher
- AIP Publishing
- Published
- 1981-04-01
- Volume
- 10
- Issue
- 2
- Pages
- 295-304
- ISSN
- 0047-2689 (ISSN-L)
- 1529-7845
- OpenAlex
- W1995607517
- Cited by
- 1,063
- References
- 0
- FWCI
- 3.71
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Ion product of water substance, 0–1000 °C, 1–10,000 bars New International Formulation and its background. https://app.cochat.ai/papers/10.1063/1.555643
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- Marshall, W. L., & Franck, E. U. (1981). Ion product of water substance, 0–1000 °C, 1–10,000 bars New International Formulation and its background. Journal of Physical and Chemical Reference Data. https://doi.org/10.1063/1.555643
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
