Complexes Du Tellure Et Leur Utilisation

Ripan, R.; Поп, Степан Степанович; Buturcă, F.; Marć, Mariusz

doi:10.1016/b978-1-4832-2841-9.50016-7

Cited by 4 publications

(12 citation statements)

References 7 publications

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“…Samples no. 4 and 5, had known composition, prepared by the authors, starting from the compounds described in the patents (8,10). Samples 4 and 5 contain: gold, palladium and rhodium terpene sulphide sulpho-resinates, copper, bismuth, chromium resinates and vanadium butyl-vanadate.…”

Section: Methodsmentioning

confidence: 99%

“…are added in the products, in adequate concentrations (5). The added elements have an important role in film formation, influencing the morphology, the adherence, the colour hues and the resistance to abrasion (6)(7)(8)(9)(10)(11).…”

Section: Introductionmentioning

confidence: 99%

“…The literature abounds with data regarding the compositions for "liquid bright gold" used for thin films deposition on ceramic or glass substrates, (1,(5)(6)(7)(8)(9)(10), but there are only a few published data related to the composition and the characteristics of the formed films even if there is plenty of data held by Liquid gold manufacturers, that is not published.…”

Section: Introductionmentioning

confidence: 99%

“…I. Pop et al (15) studied the gold film as thick as 80 nm, deposited on glass (8) and obtained values of this parameter of about 98% in the all IR range (1-25μm).…”

Section: Introductionmentioning

confidence: 99%

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The characteristics of gold films deposited on ceramic substrate

2005

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A large quantity of gold (approximately 10 tonnes yearly) is consumed, all over the world, just to decorate ceramic and glassware. Due to their advanced chemical stability gold films are used for different high technology applications. The technologies for obtaining the best "liquid bright gold" were intensively studied, but the quality of the decor coatings (films) were empirically assessed. We proposed a scientific investigation of the characteristics of gold films, deposited on ceramic substrates, from "liquid bright golds". The composition of the film has been determined by EDS (Energy Dispersive X-ray Spectrometry). The distribution of the elements was determined at the surface of the film and in cross-section. The surface distribution of the elements was uniform. The diffusion process of the film into substrate and the migration of the substrate elements at the interface region and into the film have been highlighted.The morphology of the film was studied by SEM microscopy. The grain size varied between 0.05 -2 μm as a function of the film composition. The major phases from the film and interface were evidenced by X-ray diffraction. The film consisted of crystalline gold. At the interface region a solid solution of Au-ZrSiO 4 was identified. Other phases were in amorphous state. The reflection spectra of the films were recorded from optical properties, using a mirror gold as standard, for comparison. The film with the smaller particle size reflected the UV -VIS wavelengths in the same way as a gold mirror. The adherence of the film on the substrate can be explained by the formation of an interfacial layer from solid solution Au-ZrSiO 4 and by diffusion processes. Gold Bulletin 2005 • 38/4 163

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…I. Pop et al (15) studied the gold film as thick as 80 nm, deposited on glass (8) and obtained values of this parameter of about 98% in the all IR range (1-25μm).…”

Section: Introductionmentioning

confidence: 99%

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The characteristics of gold films deposited on ceramic substrate

2005

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“…Resultate [10][11][12][13][14][15] und konnten nicht aufzeigen, ob reine feste Phasen isolierbar sind und ob sie als Hexahalogenochalkogen(IV)säuren (H2MXe), als deren Hydrate (H2MX6-wH20) oder hydratisierte Hydroniumsalze ((H30)2MX6-wH20) zu beschreiben sind.…”

Section: Introductionunclassified

Solvatisierte HalogenochaLkogen(IV)säuren, I Darstellung und Struktur des Hexabromoselen(IV)säure-Hydrats (H₅O₂)₂SeBr₆ · 4H₂O / Solvated Halogeno-Chalcogen(IV) Acids, I Preparation and Structure of the Hexabromoselenium(IV) Acid Hydrate (H₅O₂)₂SeBr₆ · 4H₂O

Krebs

Hein

1979

Zeitschrift Für Naturforschung B

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Hexabromoselenium(IV) acid with the stoichiometric composition H2SeBr6 · 8 H2O is prepared from solutions of SeBr4 in concentrated aqueous HBr. If separated from the solution, the crystalline compound is stable only at low temperatures.A single crystal X-ray structure analysis at -100 °C (monoclinic, C2/m, a = 1039.4(5), b = 1028.8(4), c = 836.6(3) pm, β = 104.11(4)°) shows the acid to contain, besides regular octahedral SeBr62- ions (Se-Br: 255.3(2)-257.9(2) pm), H5O2+ hydronium ions (O···O: 255(2) pm). The remaining H2O molecules are involved in a hydrogen bond system with O···O: 264(2)-275(2) pm and O···Br: 342(1), 351(1) pm. The formula has to be written as (H5O2)2SeBr6 · 4 H2O.

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Homogeneous isotope exchange between tungsten(VI) and Keggin and Dawson type uranium polyoxotungstophosphates

Marcu

Rusu

1999

J Radioanal Nucl Chem

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The present paper is concerned with the isotope exchange between 185W and tungsten, and 32p and phosphorus respectively, in uranium(IV) trivacant Keggin and Dawson polyoxotungstophosphate complexes, in water. These studies were carried out at different concentrations and temperature. The isotope exchange rate increases with the temperature and the reagents' concentration. The experimental results show that the complexes are labile kinetically.

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Complexes Du Tellure Et Leur Utilisation

Cited by 4 publications

References 7 publications

The characteristics of gold films deposited on ceramic substrate

The characteristics of gold films deposited on ceramic substrate

Solvatisierte HalogenochaLkogen(IV)säuren, I Darstellung und Struktur des Hexabromoselen(IV)säure-Hydrats (H₅O₂)₂SeBr₆ · 4H₂O / Solvated Halogeno-Chalcogen(IV) Acids, I Preparation and Structure of the Hexabromoselenium(IV) Acid Hydrate (H₅O₂)₂SeBr₆ · 4H₂O

Homogeneous isotope exchange between tungsten(VI) and Keggin and Dawson type uranium polyoxotungstophosphates

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Complexes Du Tellure Et Leur Utilisation

Cited by 4 publications

References 7 publications

The characteristics of gold films deposited on ceramic substrate

The characteristics of gold films deposited on ceramic substrate

Solvatisierte HalogenochaLkogen(IV)säuren, I Darstellung und Struktur des Hexabromoselen(IV)säure-Hydrats (H5O2)2SeBr6 · 4H2O / Solvated Halogeno-Chalcogen(IV) Acids, I Preparation and Structure of the Hexabromoselenium(IV) Acid Hydrate (H5O2)2SeBr6 · 4H2O

Homogeneous isotope exchange between tungsten(VI) and Keggin and Dawson type uranium polyoxotungstophosphates

Contact Info

Product

Resources

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Solvatisierte HalogenochaLkogen(IV)säuren, I Darstellung und Struktur des Hexabromoselen(IV)säure-Hydrats (H₅O₂)₂SeBr₆ · 4H₂O / Solvated Halogeno-Chalcogen(IV) Acids, I Preparation and Structure of the Hexabromoselenium(IV) Acid Hydrate (H₅O₂)₂SeBr₆ · 4H₂O