Výsledky vyhledávání - "O. E. Hileman"

51V FT-nmr investigations of metavanadate ions in aqueous solutions

Autor: Mahmoud Adam Habayeb, O. E. Hileman

Publikováno v: Canadian Journal of Chemistry. 58:2255-2261

51V-nmr chemical shifts, line widths, and area ratios obtained for various vanadium(V) species in aqueous solutions as a function of counter ion, pH, and analytical vanadium concentration changes are reported. From these data the eight vanadium(V) sp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::920d26659ebcac2dc5c7b3355d5b180c
https://doi.org/10.1139/v80-363

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Studies on nucleation phenomena occurring in aqueous solutions supersaturated with calcium sulfate. III. The cation:anion ratio

Autor: Ronald E. Massey, Douglas Martin Keller, O. E. Hileman

Publikováno v: Canadian Journal of Chemistry. 58:2127-2131

Nucleation rates from solutions of calcium sulfate dihydrate were measured at constant supersaturation but at varying cation:anion ratios. Induction times were also measured. The values of each were found to be dependent on the Ca:SO4 ratio. The resu

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https://doi.org/10.1139/v80-339

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Toward an understanding of rates of crystal nucleation from solution with a variable driving force

Autor: O. E. Hileman, Ronald E. Massey

Publikováno v: Canadian Journal of Chemistry. 55:1285-1293

'Number-time' data obtained during studies on the nucleation from aqueous solution of CaSO4•2H2O (gypsum) using the droplet technique and a variable driving force are reported. Sulfate ion was generated, in situ, by the reaction between S2O82− an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d3b38b991a14cfdc7dcd01080ee0b2a2
https://doi.org/10.1139/v77-178

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Studies on nucleation phenomena occurring in aqueous solutions supersaturated with calcium sulfate. II. The induction time

Autor: Douglas Martin Keller, O. E. Hileman, Ronald E. Massey

Publikováno v: Canadian Journal of Chemistry. 56:3096-3103

The results of a set of experiments designed to delineate the effects of changes in temperature and supersaturation levels on the length of the time interval between establishing those levels and the detection of a steady-state nucleation rate of CaS

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eebc92d59f69f2a5ade10bee00b858af
https://doi.org/10.1139/v78-506

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Studies on nucleation phenomena occurring in aqueous solutions supersaturated with calcium sulfate

Autor: Douglas Martin Keller, Ronald E. Massey, O. E. Hileman

Publikováno v: Canadian Journal of Chemistry. 56:831-838

The results of a set of experiments designed to delineate the nucleation rate, supersaturation, temperature surface for the system CaSO4•2H2O/H2O are reported. The data were obtained using the droplet technique coupled with in situ generation of SO

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::58bbc9c5b4b9d1b6905a138b5fb74d56
https://doi.org/10.1139/v78-138

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Mean Lifetime of an Embryo in the Homogeneous Nucleation from Solution of the Tetracyanoplatinates(II) of Barium, Calcium, and Magnesium

Autor: O. A. Bempah, O. E. Hileman

Publikováno v: Canadian Journal of Chemistry. 51:3435-3442

The mean lifetime of an embryo in the homogeneous nucleation from aqueous solution of the tetracyanoplatinates(II) of barium, calcium, and magnesium has been studied using the droplet technique. Supersaturation in the droplets was generated by select

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https://doi.org/10.1139/v73-511

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Studies on Nucleation from Solution of some Nickel Dioximates

Autor: O. E. Hileman, J. D. Hanna

Publikováno v: Canadian Journal of Chemistry. 50:2859-2864

Nucleation studies on two nickel dioximates have been carried out by using a direct mixing technique coupled with rapid particle counting. It is concluded that homogeneous nucleation was being observed. The Volmer–Weber, Becker–Doring model of th

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https://doi.org/10.1139/v72-456

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Studies on the Energy Barrier to Mesophase Transformations in Lyotropic Liquid Crystalline Systems

Autor: R. J. Prime, O. E. Hileman

Publikováno v: Molecular Crystals and Liquid Crystals. 28:355-364

Studies on the mesophase transformations exhibited by supersaturated aqueous solutions of four different lithium sulfoacetate esters were carried out. The concentration changes required to bring about these transformations in a population of non-comm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0eb6c87fcddf61ed2a6a2312ad0bb7cc
https://doi.org/10.1080/15421407408082831

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Studies on nucleation from solution of some soluble inorganic salts

Autor: J. A. Velazquez, O. E. Hileman

Publikováno v: Canadian Journal of Chemistry. 48:2896-2899

Vonnegut's droplet technique in combination with selective extraction of solvent is reported as a new method for the study of nucleation from solution of soluble substances at constant temperature. The method is applied to studies on NH4Cl, NH4NO3, N

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::64c3f69da4aa13f7793bf9c140d24862
https://doi.org/10.1139/v70-486

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