Electrochemical data, part II Quarterly report, 1 Jan. - 31 Mar. 1966
Mean activity coefficient tables of electrolytes in aqueous solutions on weight and volume bases
TABLE↗
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Total optical resolution of free alpha-amino- acids by the inoculation method.
Total optical resolution of DL-alpha amino acids from supersaturated aqueous solutions by seeding with pure crystals of L- or D-isomers of amino acid
AMINO ACID↗
The rheology of polyelectrolytes. IV - The dependence of turbulence on polymer concentration
Transition from laminar to turbulent flow as function of concentration for aqueous solutions of polyacrylic acid
ACRYLIC ACID↗
Absorption of pyrimidines, purines and nucleosides by Li, Na, Mg, and Ca montmorillonite /clay organic studies 12/
Absorption of purines, pyrimidines, and nucleoside in aqueous solution by montmorillionite occurring as cation exchange reaction
Brindley, G. W.↗
Irradiation of dihydropyrimidines.
Gamma irradiation effect on dihydropyrimidines in aqueous solution and solid state, stressing conversion to unsaturated forms and ESR spectroscopy of free radicals
Bernhard, W.↗
Stress corrosion cracking of titanium alloys. II - An electrochemical mechanism.
Electrochemistry for stress corrosion crack propagation through Ti alloy in aqueous solutions
Beck, T. R.↗
Reduction by monovalent zinc, cadmium, and nickel cations
Understanding of chemical properties of monovalent transition metal cations in aqueous solutions was obtained by a study of kinetics of reduction of different inorganic substrates by zinc, cadmium, and nickel.
Meyerstein, D.↗
Absorption of pyrimidines, purines, and nucleosides by Li-, Na-, Mg-, and Ca-montmorillonite /clay-organic studies XII/.
Purines, pyrimidines and nucleosides absorption by Li-, Na-, Mg- and Ca-montmorillonite in aqueous solutions over range pH 2-12 by cation exchange
Brindley, G. W.↗
Electron injection into zinc oxide.
Electron injection into ZnO from aqueous solutions of stable substances, correlating injection with oxidation potential of substance
Freund, T.↗
Pyrolysis of amino acids in Pleistocene Mercenaria shells
Amino acid stability in pyrolyzed Pleistocene Mercenaria shells, comparing decomposition rates for aqueous solution
Vallentyne, J. R.↗
Etching of aluminum for bonding Patent
Etching aluminum alloys with aqueous solution containing sulfuric acid, hydrofluoric acid, and an alkali metal dischromate for adhesive bonding
Emde, W. D.↗
Stabilization of lactate dehydrogenase
Addition of substances such as dimethylsulfoxide, glycerol, and gelatin to aqueous solutions of lactate dehydrogenase maintains enzymes in stable and fully active form when stored at 2 - 6 C.
Friedman, O. M.↗
Carbon dioxide concentrator
Passed exhaled air through electrochemical cell containing alkali metal carbonate aqueous solution, and utilizes platinized electrodes causing reaction of oxygen at cathode with water in electrolyte, producing hydroxyl ions which react with carbon dioxide to form carbonate ions.
Williams, C. F.↗
Electron beam chemistry produces high purity metals
Application of radiation chemistry for deposition of metals by irradiation of aqueous solutions with high energy electrons is presented. Design of reaction vessel for irradiation of solution is illustrated. Features of radiochemical technique and procedures followed are described.
Philipp, W. H.↗
The development and evaluation of a cobalt base oxidation resistant dispersion strengthened alloy
The Co-18Cr-20Ni-4 Vol % ThO2 powders were prepared by a flash drying selective reduction process starting with an aqueous solution of metal salts and colloidal thoria. Powders were consolidated and extruded into rods with a minimum density of 99% of theoretical. Swaging and annealing studies were conducted to determine the conditions that would lead to a product with high stress-rupture strength. The best process yielded a stress-rupture life of 7.2 hours at 10 KSI (69 MN sq m and 2000 F (1094 C). The alloy recrystallized to a duplex (coarse-fine) structure and thus did not exhibit the desired strength of 3000 hours at 15 KSI (103.5MN/sq m and 2000 F (1094 C).
Irani, K. K.↗
Nonuniform concentration - A mechanism for drag reduction.
A large reduction in drag coefficient has been observed in certain external flows of aqueous solutions with high molecular weight polymer additives. A change in the near wake configuration is phenomenologically responsible for the drag reduction, but the underlying mechanism is presently unknown. An analogy to known phenomena in particulate suspensions is drawn which suggests nonuniform concentration of the polymer additive as an explanation. An analysis of the boundary layer on a sphere with varying viscosity was made to investigate the effect. The results indicate early transition to turbulence for concentration variations whose length scale is small compared with the momentum boundary layer thickness. Stabilization and delayed transition are indicated for thicker concentration layers. Observations are suggested for the thin concentration layers.
Rivard, W. C.↗
Formation of urea and guanidine by irradiation of ammonium cyanide.
Aqueous solutions of ammonium cyanide yield urea, cyanamide and guanidine when exposed to sunlight or an unfiltered 254 nm ultraviolet source. The prebiotic significance of these results is discussed.
Lohrmann, R.↗
Reductive cleavage of the peptide bond
In many biological research efforts, long chain organic molecules are studied by breaking large molecules into smaller components. Cleavage technique of recent interest is the use of solvated electrons. These are formed when aqueous solutions are bombarded with gamma radiation. Solvated electron is very reactive and can reduce most any species present, even to form free radicals.
Holian, J.↗