Filters
Results 1 - 10 of 34413
Results 1 - 10 of 34413.
Search took: 0.041 seconds
| Sort by: date | relevance |
[en] Kinetic regularities of deep oxidation of small amounts of different organic compounds in the air are studied. The investigation has been carried out in non-gradient reactors in stationary regimes in a wide range of the parameter changes with the measurement of kinetic isotope effects to clarify the nature of slow stages
[ru]
Journal
Doklady Akademii Nauk SSSR; ISSN 0002-3264; 
; v. 258(1); p. 131-135
; v. 258(1); p. 131-135
[en] The study of the interaction in the system ammonium perrhenate-sodium thiosulfate-hydrochloric acid-water using the chemical and X-ray phase analyses in a wide range of component ratios has shown that in the system two main process occur: formation of rhenium sulphide and separation of elemental sulphur. The degree of rhenium precipitation mainly depends on the ratio of components and to a less degree - on the mass of precipitate and the presence of high concentrations of ammonium chloride in the initial solutions. Rhenium sulphide and elemental sulphur interact in the moment of separation
[ru]
Journal
Ukrainskij Khimicheskij Zhurnal; ISSN 0041-6045; ; v. 48(1); p. 18-21
; v. 48(1); p. 18-21
[en] The interaction between components in the MoO3 - MgO system, containing 0.1-78 mass. % MoO3 in the temperature range from room to 1150 deg, is studied using the electron spectroscopy of diffusion reflection, X-ray phase analysis and thermography. Electron spectra of the structures, formed at different stages of thermal transformations, are determined. In the MoO3-HgO system already at the stage of impregnation the interaction of components with the formation of hydrated forms of the basic magnesium molybdate and its double basic salts takes place. Thermal decomposition of the compounds proceeds through the stage of intermediate X-ray amorphous product of basic magnesium molybdate type and ends with the formation of highly disperse magnesium molybdate. The most complete transformation of components into MgMoO4 takes place only at 800 deg. Magnesium molybdate is characterized by a wide absorption band at 265 nm
[ru]
Journal
Zhurnal Prikladnoj Khimii; ISSN 0044-4618; ; v. 54(4); p. 743-749
; v. 54(4); p. 743-749
No abstract available
Journal
Journal of Chemical Research. Synopsis; ISSN 0308-2342; ; (no.7); p. 188-189
; (no.7); p. 188-189
[en] Stability constants have been measured of chelate complexes of nine lanthanides with N-hydroxyacetophenonevaline in aqueous media at 25, 35 and 450C. Standard thermodynamic functions have been calculated. (author)
Journal
Polish Journal of Chemistry; ISSN 0137-5083; ; v. 54(3); p. 391-394
; v. 54(3); p. 391-394
[en] Fibrillar form of caesium isopolymolybdate was obtained. The structure of the compound and the water bonding in it have been discussed basing on thermogravimetric, X-ray diffractometric and spectroscopic 1H NMR measurements. (author)
Journal
Polish Journal of Chemistry; ISSN 0137-5083; ; v. 54(10); p. 1859-1864
; v. 54(10); p. 1859-1864
No abstract available
Journal
Polish Journal of Chemistry; ISSN 0137-5083; ; v. 54(9); p. 1847-1848
; v. 54(9); p. 1847-1848
No abstract available
Journal
Prace Naukowe Instytutu Chemii Organicznej i Fizycznej Politechniki Wroclawskiej. Seria Konferencje; ISSN 0324-9824; ; (no.18); p. 286
; (no.18); p. 286
No abstract available
Journal
Prace Naukowe Instytutu Chemii Organicznej i Fizycznej Politechniki Wroclawskiej. Seria Konferencje; ISSN 0324-9824; ; (no.18); p. 358
; (no.18); p. 358
| 1 | 2 | 3 | Next |