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Determination of Abraham model solute descriptors for the monomeric and dimeric forms of trans-cinnamic acid using measured solubilities from the Open Notebook Science Challenge

Description: Article on the determination of Abraham model solute descriptors for the monomeric and dimeric forms of trans-cinnamic acid using measured solubilities from the Open Notebook Science Challenge.
Date: March 22, 2015
Creator: Bradley, Jean-Claude; Abraham, M. H. (Michael H.); Acree, William E. (William Eugene); Lang, Andrew S. I. D.; Beck, Samantha N.; Bulger, David A. et al.
Item Type: Refine your search to only Article
Partner: UNT College of Arts and Sciences
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Identification and characterization of conservative organic tracers for use as hydrologic tracers for the Yucca Mountain Site characterization study. Progress report, January 1, 1995--March 31, 1995

Description: Fluorinated organic acids were utilized in a test study as hydrologic tracers for the Yucca Mountain Project. Fluorinated acids included cinnamic acid; benzoic acid, and toluic acid. Results are discussed pertaining to retention time, elution time, and stability.
Date: May 1, 1995
Creator: Stetzenbach, Klaus & Farnham, I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Identification and characterization of conservative organic tracers for use as hydrologic tracers for the Yucca Mountain Site Characterization Study; Progress report, June 1--December 31, 1990

Description: Ground water tracers are solutes dissolved in or carried by ground water to delineate flow pathways. Tracers provide information on direction and speed of water movement and that of contaminants that might be conveyed by the water. Tracers can also be used to measure effective porosity, hydraulic conductivity, dispersivity and solute distribution coefficients. For most applications tracers should be conservative, that is, move at the same rate as the water and not sorb to aquifer materials. Tra… more
Date: December 1990
Creator: Stetzenbach, K. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Identification and characterization of conservative organic tracers for use as hydrologic tracers for the Yucca Mountain Site Characterization Study; Progress report, July 1, 1991--December 31, 1991

Description: Studies continued on organic tracers for use as hydrologic tracers as part of the Yucca Mountain Site Characterization project. Tracers studied include benzoic acids, cinnamic acids, and salicylic acids. The main focus of the work performed during the time period from 07/01/91 to 12/31/91 has been the continuation of (1) LC-MS optimization for tracer identification, (2) batch sorption and degradation studies, (3) neoprene tubing evaluation studies, and (4) soil column evaluation of tracer compo… more
Date: December 31, 1991
Creator: Dombrowski, Tonya & Stetzenbach, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Coalification by Clay-Catalyzed Oligomerization of Plant Monomers

Description: The next step in our systematic examination of the radical cationinitiated dimerization of plant monomers from the D{sub 6}-C{sub 3} pool of shikimic acid metabolites was to study the dimerization of cinnamic acid and its derivatives. In order to do this we needed a radical cation initiator that has a reduction potential greater than that of BAHA (E{sub red} = 1.30 volts), since the electron-withdrawing carboxylate functional group of cinnamates renders them inert to oxidation with BAHA. This p… more
Date: January 1, 1990
Creator: Orchin, M. & Wilson, R. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Coalification by Clay-Catalyzed Oligomerization of Plant Monomers

Description: One of the main objectives is to explore the possibility that radical cation Diels-Alder reactions are involved in the biosynthesis of lignans in plants. Two of the most highly sought after classes of lignans are the dibenzocyclooctadienes represented by stegnol and the aryltetralins represented by podophyllotoxin. Both are powerful anticancer agents and have structures that might be assembled from C{sub 6}-C{sub 3} units via radical cation processes. A common feature of both of these molecules… more
Date: January 1, 1990
Creator: Orchin, M. & Wilson, R. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Coalification by Clay-Catalyzed Oligomerization of Plant Monomers. [Methyleugenol]

Description: During this report period, we have obtained a model of montmorillonite clay, and this model has been of great assistance in visualizing how the chemistry of substrate molecules might be altered as it occurs on the surface of the clay. A stereochemical representation of this montmorillonite model is shown. Of particular significance, this model indicates that hydroxyl groups are located in the center of each siloxane ring on the surface of the montmorillonite clay. These hydroxyl groups might se… more
Date: January 1, 1990
Creator: Orchin, M. & Wilson, R. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Toxicological Evaluation of Liquids Proposed for Use in Direct Contact Liquid--Liquid Heat Exchangers for Solar Heated and Cooled Buildings

Description: This report contains the results of the toxicological evaluation part of the project entitled, ''Direct Contact Liquid-Liquid Heat Exchangers for Solar Heated and Cooled Buildings.'' Obviously any liquid otherwise suitable for use in such a device should be subjected to a toxicological evaluation. 34 liquids (24 denser than water, 10 less dense) have physical and chemical properties that would make them suitable for use in such a device. In addition to the complexity involved in selecting the m… more
Date: September 1, 1976
Creator: Buchan, R. M.; Majestic, J. R. & Billau, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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