Flame Spectra of Vanadium, Niobium, Rhenium, Titanium and Molybdenum (open access)

Flame Spectra of Vanadium, Niobium, Rhenium, Titanium and Molybdenum

Abstract Line spectra of vanadium, niobium, titanium, molybdenum and rhenium of sufficient intensity to allow detection at the 1–10 p.p.m. level can be excited in fuel-rich, oxy-acetylene flames. For the strongest lines of tungsten, the sensitivity of detection is 90 p.p.m. Weak lines of zirconium, hafnium, osmium, tantalum and uranium are also observed in these flames. Recordings of the spectra are given along with wavelength tables of the strongest lines.
Date: July 23, 1962
Creator: Fassel, Velmer A.; Myers, Robert B. & Kniseley, Richard N.
System: The UNT Digital Library
Cation Exchange in Acetone-Water-Hydrochloric Acid (open access)

Cation Exchange in Acetone-Water-Hydrochloric Acid

Abstract: Distribution coefficients have been measured for the partition of metal ions between cation exchange resin and acetone-water-hydrochloric acid solutions. the differences in distribution coefficients of metal ions are greater in acetone-water media than in aqueous media of the same hydrochloric acid concentration. Using distribution coefficient data, conditions for column separations of mixtures can be selected. Column separations of metal ion mixtures can be effected by eluting with acetone-water-hydrochloric acid solutions of different compositions. Successful separations of a number of mixtures are reported.
Date: May 10, 1962
Creator: Fritz, James S. (James Sherwood), 1924- & Rettig, Thomas A.
System: The UNT Digital Library
Acid-Base Reactions and Kinetics of the Halates in Fused Nitrates (open access)

Acid-Base Reactions and Kinetics of the Halates in Fused Nitrates

From Abstract : "The mechanism of the reactions of the halates, bromate, chlorate, and iodate, with dichromate in fused alkali nitrates has been shown to involve a fast equilibrium followed by a slow rate determining strip to give oxygen and halogen gases as final products." Experiments outlined serve as insight into the structure of fused salts or fused electrolytes.
Date: November 1962
Creator: Schlegel, James Max & Duke, P. R.
System: The UNT Digital Library
Propagation Characteristics of Capillary Ripples, III. Capillary Ripple Velocity and Attenuation Dispersion on Clean Water Surfaces and on Various Monolayers (open access)

Propagation Characteristics of Capillary Ripples, III. Capillary Ripple Velocity and Attenuation Dispersion on Clean Water Surfaces and on Various Monolayers

From Abstract: "The theory and instrumentation previously described by us were applied to the systems monolayer-free distilled water; stearic acid, mixed hexadecanol and octadecanol and several long chain fatty ester monolayers; stearic acid - polyvinyl acetate mixed films and egg albumen spread films; heptanoic acid adsorbed monolayers."
Date: January 1962
Creator: Mann, J. Adiin, Jr. & Hansen, R. S.
System: The UNT Digital Library