Results 241 to 250 of about 26,532 (295)

Sulfidation of Zinc by Traces of Hydrogen Sulfide in Air

Journal of The Electrochemical Society, 1995
The effect of H{sub 2}S in the sub-parts per million range on the atmospheric corrosion of zinc has been investigated in the laboratory. Each sample was exposed individually to air with careful control of pollutant concentration, relative humidity, and flow conditions.
J. ‐E. Svensson, L. ‐G. Johansson
openaire   +1 more source

Emission Spectra of Some Zinc Sulfide and Zinc-Cadmium Sulfide Phosphors

Journal of the Optical Society of America, 1947
Emission spectra of thirty zinc sulfide and zinc-cadmium sulfide phosphors with varied cadmium content and different activators are shown. The spectra were obtained with a grating spectrograph using photographic recording, and the curves are plotted in terms of relative energy.
openaire   +1 more source

Small, Nonstoichiometric Zinc Sulfide Clusters

The Journal of Physical Chemistry A, 2005
Recent experiments indicated that the formation of small, nonstoichiometric clusters Zn(n)S(m) and Zn(n)S(m)+ was possible. In this work, the ground states of these clusters, where 1 < or = n, m < or = 4, were studied using density functional theory.
Krum, Chuchev, Joseph J, BelBruno
openaire   +2 more sources

Thermal Recrystallization of Precipitated Zinc Sulfide

Science, 1966
Changes in morphology during thermal recrystallization of zinc sulfide precipitate were observed under an electron microscope. Intra-aggregate coalescence of precipitate grains proceeds with unexpected rapidity until the limiting identity of aggregate and grain is attained.
L J, Bodi, C F, Tufts
openaire   +2 more sources

Three New Polymorphs of Zinc Sulfide

Science, 1948
Three new polymorphs of zinc sulfide are described. All are related structurally to wurtzite but difier in that they represent stacking sequences of hexagonal closest-packing of higher periodicity than that of the basic wurtzite structure. The latter structure may be designated 2H in the nomenclature of Ramsdell (1947). The new polymorphs correspond to
C, Frondel, C, Palache
openaire   +2 more sources

Sulfidation Mechanism for Zinc Oxide Nanoparticles and the Effect of Sulfidation on Their Solubility

Environmental Science & Technology, 2013
Environmental transformations of nanoparticles (NPs) affect their properties and toxicity potential. Sulfidation is an important transformation process affecting the fate of NPs containing metal cations with an affinity for sulfide. Here, the extent and mechanism of sulfidation of ZnO NPs were investigated, and the properties of resulting products were
Ma, Rui, Levard, Clément, Michel, F. Marc, Brown, Gordon E., Lowry, Gregory V.   +4 more
openaire   +4 more sources

Oxidation of zinc sulfide by means of zinc sulfate

Thermochimica Acta, 1994
Abstract The problems dealt with in this study concern the oxidation of metal sulfides, in particular attention to the reactions between MSO 4 and MS. The paper contains some experimental results obtained in analyzing the interaction between ZnSO 4 and ZnS by means of thermogravimetric analysis, radiomarking using the isotope 35 S, X-ray phase ...
Czesław Malinowski, Kazimiera Malinowska   +1 more
openaire   +1 more source

Sulfidation of zinc titanate and zinc oxide solids

Industrial & Engineering Chemistry Research, 1992
This paper describes the sulfidation of bulk mixed oxides of zinc and titanium of various compositions and Zn--Ti--O crystalline phases in H[sub 2]S--H[sub 2]--H[sub 2]O--N[sub 2] gas mixtures was investigated in a thermogravimetric apparatus over the temperature range of 400--800[degrees]C.
Susan Lew, Adel F. Sarofim, Maria Flytzani-Stephanopoulos   +2 more
openaire   +1 more source

ChemInform Abstract: THE ZINC ALUMINUM SULFIDE (ZNAL2S4)‐ZINC GALLIUM SULFIDE (ZNGA2S2), ZINC ALUMINUM SULFIDE‐CADMIUM ALUMINUM SULFIDE (CDAL2S4), AND ZINC ALUMINUM SULFIDE‐ZINC ALUMINUM SELENIDE (ZNAL2SE4) QUATERNARY SYSTEMS. X‐RAY AND VIBRATIONAL SPECTROSCOPIC STUDIES

Chemischer Informationsdienst, 1983
AbstractPhasenanalytische Untersuchungen an den quasibinären Systemen (I)‐(III) zeigen, daß im Spinell ZnAl2S4 bis zu 20% des Zn durch Cd ersetzbar sind, während in den beiden anderen Systemen der Spinell keine meßbare Phasenbreite besitzt.
H. HAEUSELER, A. CANSIZ
openaire   +1 more source

ChemInform Abstract: Roasting of Zinc Sulfide, Lead Sulfide, Copper Sulfide, and Iron Sulfide

ChemInform, 1991
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
V. VESELY, M. HARTMAN, K. SVOBODA, J. MRACEK   +3 more
openaire   +1 more source