NDLI: Solubility Measurements of Crystalline Cu$_{2}$O in Aqueous Solution as a Function of Temperature and pH

Content Provider	Springer Nature Link
Author	Palmer, Donald A.
Copyright Year	2011
Abstract	The equilibrium solubility of crystalline cuprous oxide, cuprite, was measured in liquid water and steam using two flow-through reactors and a conventional batch autoclave. These measurements were carried out from 20 to 400 °C. Different batches of pretreated cuprite were thoroughly characterized prior to and following each set of experiments. Metallic copper beads were added to the inlet end of the reactors and to the solid charge in the autoclave to preserve the Cu(I) oxidation state, although one series of experiments produced some results which were only compatible with CuO(cr) as the solubility limiting phase. Comparison of the solubility data for Cu$_{2}$O(cr) in aqueous solution with those from the only available high-temperature dataset (Var’yash, Geochem. Int. 26:80–90, 1989) showed that in near-neutral solutions the new data are lower by about four orders of magnitude at 350 °C. Moreover, the dominant species in solution at temperatures ≥100 °C were found to be only Cu$^{+}$ and $\mathrm{Cu(OH)}_{2}^{-}$ with Cu(OH)$^{0}$ occurring over a narrow pH range at ≤75 °C rather than the reverse trend reported previously. Solubility equations were developed as a function of temperature and pH, based on these new results, which showed increased solubility with temperature in acidic and basic solutions. The solubility of Cu$_{2}$O(cr) in steam decreased slightly with temperature and as expected increased with increasing pressure to supercritical conditions where limited, compatible data were available in the literature. The solubility at subcritical conditions was on the order of one to several parts per billion, ppb. A simple empirical fit was derived for the solubility in steam as a function of temperature and pressure.
Starting Page	1067
Ending Page	1093
Page Count	27
File Format	PDF
ISSN	00959782
Journal	Journal of Solution Chemistry
Volume Number	40
Issue Number	6
e-ISSN	15728927
Language	English
Publisher	Springer US
Publisher Date	2011-05-24
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Copper(I) oxide Cuprite Cu(I) Solubility Thermodynamics Hydrolysis Aqueous solutions Temperature pH Inorganic Chemistry Condensed Matter Physics Industrial Chemistry/Chemical Engineering Oceanography Geochemistry Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Biochemistry Molecular Biology Biophysics Physical and Theoretical Chemistry

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Solubility Measurements of Crystalline NiO in Aqueous Solution as a Function of Temperature and pH

Solubility of B-Nb$_{2}$O$_{5}$ and the Hydrolysis of Niobium(V) in Aqueous Solution as a Function of Temperature and Ionic Strength

Zirconium Dioxide Solubility in High Temperature Aqueous Solutions

Solution and Mixing Thermodynamics of Propranolol and Atenolol in Aqueous Media

Solubility of Zinc Silicate and Zinc Ferrite in Aqueous Solution to High Temperatures

Solubility of Litharge (α-PbO) in Alkaline Media at Elevated Temperatures

Potentiometric measurements of the first hydrolysis quotient of magnesium(II) to 250°C and 5 molal ionic strength (NaCl)

Effect of Temperature on the Solubility of Short-Chain Carboxylic Acids in Water

Solubility of gallium(III) oxyhydroxide in aqueous NaCl solutions at 100°C

Solubility Measurements of Crystalline Cu$_{2}$O in Aqueous Solution as a Function of Temperature and pH

Similar Documents

Solubility Measurements of Crystalline NiO in Aqueous Solution as a Function of Temperature and pH

Solubility of B-Nb$_{2}$O$_{5}$ and the Hydrolysis of Niobium(V) in Aqueous Solution as a Function of Temperature and Ionic Strength

Zirconium Dioxide Solubility in High Temperature Aqueous Solutions

Solution and Mixing Thermodynamics of Propranolol and Atenolol in Aqueous Media

Solubility of Zinc Silicate and Zinc Ferrite in Aqueous Solution to High Temperatures

Solubility of Litharge (α-PbO) in Alkaline Media at Elevated Temperatures

Potentiometric measurements of the first hydrolysis quotient of magnesium(II) to 250°C and 5 molal ionic strength (NaCl)

Effect of Temperature on the Solubility of Short-Chain Carboxylic Acids in Water

Solubility of gallium(III) oxyhydroxide in aqueous NaCl solutions at 100°C

Solubility Measurements of Crystalline Cu$_{2}$O in Aqueous Solution as a Function of Temperature and pH