Solubility of Litharge (a-PbO) in Alkaline Media at Elevated Temperatures [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 2004.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: 2,249 Kilobytes pages : digital, PDF file
Additional Creators:: Lockheed Martin, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

An inert, flowing autoclave facility is used to investigate the solubility behavior of α-PbO (litharge, tetragonal) in aqueous solutions of morpholine, ammonia and sodium hydroxide between 38 and 260 C. Lead solubilities increased from about 0.4 mmol kg⁻¹ at 38 C to about 4.5 mmol kg⁻¹ at 260 C and were relatively insensitive to the concentration and identity of the pH-reagent. The measured lead solubilities were interpreted using a Pb(II) ion hydroxocomplexing model and thermodynamic functions for these equilibria were obtained from a least-squares analysis of the data. A consistent set of thermodynamic properties for the species Pb(OH)⁺, Pb(OH)₂(aq) and Pb(OH)₃⁻ is provided to permit accurate lead oxide solubility calculations over broad ranges of temperature and alkalinity.

Report Numbers:

E 1.99:lm-04k145
lm-04k145

Subject(s):

Engineering

Other Subject(s):

Note:

Published through SciTech Connect.
11/02/2004.
"lm-04k145"
P Benezeth; SE Ziemniak; DA Palmer; LM Anovitz.

Type of Report and Period Covered Note:

Final; 11/02/2004 - 11/02/2004

Funding Information:

AC 12-00-SN39357

View MARC record | catkey: 14105918