Heats of Solution of the Cobaltous Nitrate Hydrates in Water and in Certain Organic Solvents and Binding Energies of Molecular Ligands1a

1952 ◽  
Vol 74 (23) ◽  
pp. 6040-6047 ◽  
Author(s):  
Leonard I. Katzin ◽  
John R. Ferraro
Keyword(s):  
Organic Solvents ◽  
Binding Energies ◽  
Heats Of Solution ◽  
Cobaltous Nitrate

Enthalpies of transfer of alkane solutes from the vapor state to organic solvents

1985 ◽  
Vol 63 (2) ◽  
pp. 349-352 ◽  
Author(s):  
Richard Fuchs ◽  
W. Kirk Stephenson
Keyword(s):  
Organic Solvents ◽  
Solubility Parameter ◽  
Empirical Correlation ◽  
Enthalpies Of Transfer ◽  
Vapor State ◽  
Heats Of Solution ◽  
Hildebrand Solubility Parameter

Heats of solution of 5 – 8 C5–C16 alkane liquids have been determined in each of 19 organic solvents covering the Taft–Kamlert π* (dipolarity-polarizability) range −0.08 to 1.00. Enthalpies of alkane transfer from vapor to solvents have been calculated (ΔH(v → S) = ΔHs − ΔHv). The methylene increments in (ΔH(v → S) in the 19 solvents and water (−1.18 to −0.67 kcal/mol) are not well correlated with the Hildebrand solubility parameter δ, but an empirical correlation exists with solvent π* and polarizability:[Formula: see text](n = 20, r = 0.977, see = 0.032). By this criterion the small methylene increment in water appears to be associated with the high dipolarity and low polarizability of water.

scholarly journals Dispersion of Multiwall Carbon Nanotubes in Organic Solvents through Hydrothermal Supercritical Condition

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Krishnegowda Jagadish ◽  
Shivanna Srikantaswamy ◽  
Kullaiah Byrappa ◽  
Lingaraju Shruthi ◽  
Mavinakere Ramesh Abhilash
Keyword(s):  
Carbon Nanotubes ◽  
Particle Size ◽  
Carbon Nanotube ◽  
Organic Solvents ◽  
Isopropyl Alcohol ◽  
Hydrothermal Reaction ◽  
Multiwall Carbon Nanotubes ◽  
Binding Energies ◽  
Multiwall Carbon Nanotube ◽  
Multiwall Carbon

Multiwall carbon nanotube (MWCNT) composite materials require careful formulation of processing methods to ultimately realize the desired properties. Until now, controlled dispersion of MWCNT remains a challenge, due to strong van der Waals binding energies associated with the MWCNT aggregates. In the present study, an effort has been made to disperse MWCNTs in organic solvents like dichloromethane, ethanol, isopropyl alcohol, and hexane through hydrothermal reaction. Dichloromethane is considered the best solvent for the dispersion of MWCNTs. The characterizations were carried out to find the dispersion design, particle size, and stabilization, which clearly indicate that the desired properties of MWCNTs have been achieved.

UNTERSUCHUNGEN ÜBER DIE EXTRAKTION DES ROTEN KOBER-FARBSTOFFS DURCH ORGANISCHE LÖSUNGSMITTEL ZUR ÖSTROGENBESTIMMUNG IM HARN

1960 ◽  
Vol XXXV (I) ◽  
pp. 34-48 ◽  
Author(s):  
Gerd Ittrich
Keyword(s):  
Menstrual Cycle ◽  
Organic Solvents ◽  
Urine Sample ◽  
Phenol Derivatives ◽  
Organische Lösungsmittel ◽  
Colour Complex

ABSTRACT A series of organic solvents and phenol derivatives have been examined for the extraction of the pink Kober-colour complex. Optimal results could be achieved for fluorimetry by a solution of 2 % (w/v) p-nitrophenol and 1 % (v/v) ethanol in acetylenetetrabromide, when the green mercury line (546 mμ was used as primary light. The sensitivity, stability and specificity have been improved, compared with the previously described reaction. By changing the sequence of purification steps and by reducing the volume of the urine sample (5 ml) the method for the determination of total oestrogens has been simplified. Approximately 10 determinations can be done within 3–4 hours by one person. Recovery experiments and comparative determinations with a previously described method have been carried out. The excretion of total oestrogens in a complete menstrual cycle is determined with the described method.

Hydrogen in amorphous Ni–Zr: Pressure concentration isotherms, site occupation, and binding energies

1986 ◽  
Vol 1 (6) ◽  
pp. 765-773 ◽  
Author(s):  
E. Batalla ◽  
J.O. Strom-Olsen ◽  
Z. Altounian ◽  
D. Boothroyd ◽  
R. Harris
Keyword(s):  
Binding Energies ◽  
Site Occupation ◽  
Pressure Concentration

Multiple Donors in Zinc Oxide Substrates

2002 ◽  
Vol 719 ◽  
Author(s):  
K. Thonke ◽  
N. Kerwien ◽  
A. Wysmolek ◽  
M. Potemski ◽  
A. Waag ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Chemical Vapor ◽  
Binding Energies ◽  
Vapor Transport ◽  
Chemical Vapor Transport ◽  
Oxide Substrates ◽  
Multiple Donors ◽  
Major Donors ◽  
Available Zinc ◽  
Transport Technique

AbstractWe investigate by photoluminescence (PL) nominally undoped, commercially available Zinc Oxide substrates (from Eagle Picher) grown by seeded chemical vapor transport technique in order to identify residual donors and acceptors. In low temperature PL spectra the dominant emission comes from the decay of bound exciton lines at around 3.36 eV. Zeeman measurements allow the identification of the two strongest lines and some weaker lines in-between as donorrelated. From the associated two-electron satellite lines binding energies of the major donors of 48 meV and 55 meV, respectively, can be deduced.

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