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6. Conductivity measurements of dilute aqueous LiOH, NaOH, and KOH solutions to high temperatures and pressure using a flow-through cell

Author

Ho, Patience C., Palmer, Doland A., and Wood, Robert H.

Subjects
Nonferrous metals -- Research, Nonferrous metals -- Chemical properties, Dilution -- Research, Chemistry, Physical and theoretical -- Research, Chemicals, plastics and rubber industries
Abstract

The (lambda0) values presented in this study has shown that the new results are in agreement with the values measured using the static cell for LiOH, NaOH and KOH at (Rho) greater than or equal to 0.5g.cm(super -3) but are slightly higher and less scattered below 0.5 g.cm(super -3) especially in the cases of NaOH and KOH. The flow through cell is designed to measure molar conductances of dilute aqueous electrolytes with a high degree of accuracy at high temperatures and pressures.

Published
2000

16. Adsorption and Desorption of Dinitrotoluene on Activated Carbon

Author

OAK RIDGE NATIONAL LAB TN, Ho, Patience C., Daw, C. S., OAK RIDGE NATIONAL LAB TN, Ho, Patience C., and Daw, C. S.

Abstract

The adsorption and solvent extraction 0+ aqueous 2,4-dinitro-toluene (ONT) were evaluated with two commercial activated carbons. Both carbons proved to be excel lent adsorbents +or aqueous DNT. The solvents tested +or extracting the adsorbed DNT were water, acetone, and methanol, both individually and in mixtures with each other. Acetone and methanol were both +ound to be much more e++ective extraction solvents than water. Analysis 0+ the extracts revealed the presence 0+ at least six other chemical species besides DNT. Four 0+ these other species were tentatively identi+ied as 2,4-dinitro-benzyl alcohol, 2,4-dinitro-benzaldehyde, 2,4-dinitro-benzoic acid, and 2,4- dinitro-methylbenzoate. The presence 0+ these derivative compounds suggests that some 0+ the DNT undergoes chemical reactions while attached to the carbon sur+ace., Sponsored in part by DOE. Prepared in cooperation with Martin Marietta Energy Systems, Inc.

Published
1987

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