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NMR Characterization and Rietveld Refinement of the Structure of Rehydrated AlPO4-34
(American Chemical Society, 2000)
The triclinic form of AlPO4-34, a microporous aluminophosphate with the chabazite (CHA) topology, adopts a rhombohedral symmetry upon calcination. The framework structure of this phase remains intact under ambient conditions, ...
Thermal shock behavior of alumina based refractories: correlation between damage resistance parameters and water quench test
(Techna Srl, Faenza, 2000)
Materials were five alumina based commercial refractories with different content of (Al2O3 + TiO2) from 28% to 78%.The thermal and mechanical properties of these materials were measured using standard laboratory procedure. ...
The alcoholysis of 1,2,2-trimethylpropyl-methylfluorophosphonate / Alkoholiza 1,2,2-trimetilpropil-metilfluorofosfata
(Serbian Chemical Society, Belgrade, 2000)
The alcoholysis of 1,2,2-trimethylpropyl-methylfluorophosphonate (soman) was examined with a series of alkoxides and in corresponding alcohols: methanol, ethanol, 1-propanol, 2-propanol, 2-methoxyethanol and 2-ethoxyethanol. ...
Chemical stability of triple base powders and methods of examination / Hemijska stabilnost trobaznih baruta i metode ispitivanja
(Association of Chemical Engineers of Serbia, 2000)
This paper defines the term powder chemical stability and describes development of the relevant test methods. Traditional, i.e. classical, as well as instrumental test methods of chemical stability for double and triple ...
Essential oil of Stachys plumosa Griseb. (Lamiaceae) / Sastav etarskog ulja Stachys plumosa Griseb. (Lamiaceae)
(Institute for Medicinal Plants Research "Dr. Josif Pancic", 2000)
The volatile constituents of the aerial parts of Stachys plumosa Griseb. isolated by hydrodistillation, were analysed by GC and GC/MS. The essential oil was composed of 105 components. The main components were β-pinene ...
Gas chromatographic retention indices for the N-methyl-N-substituted benzamides on capillary columns
(Natl Inst Science Communication, New Delhi, 2000)
Gas chromatographic retention indices (1) for series of 20 synthesized N-methyl-N-substituted benzamides on DB-I, DB-5 and DB-WAX capillary columns isothermal at 170, 190 and 210 degreesC, and using temperature programmed ...
Thermal investigations of CoAPO materials prepared by using piperidine as a structure-directing agent
(Elsevier, Amsterdam, 2000)
Two CoAPO materials (CoAPO-34 and CoAPO-20) with relatively high Co2+/Al3+ substitution level were synthesised in either fluoride-free or fluoride-containing reaction mixture using piperidine as a structure-directing agent. ...
Hermal shock behavior of Alumina based refractories: Korrelation between damage resistance parameters and water fcuench test
(Techna Srl, Faenza, 2000)
Klaterials were five alumina based commercial refractories with different content of (AI2O3 +TiO2) from 28% to 78%.The thermal and mechanBl properties of these materials were measured using standard laboratory procedure.Thermal ...
Analysis of acceleratingly aged composite explosives based upon pentrite and polyurethane binder / Ispitivanje ubrzano starenih kompozitnih eksploziva na bazi pentrita i poliuretanskog veziva
(Vojnotehnički institut, Beograd, 2000)
Composite explosives based upon pentrite and polyurethane binder were artificially aged at 60°C and 80°C. During aging the polymer component degraded faster than pentrite. Aging effects on the samples of composite explosives ...
Manganese leaching in the FeS2-MnO2-O2-H2O system at high temperature in an autoclave
(Elsevier Science Publishers B.V., 2000)
The paper shows: (a) the results of pyrite oxidation by gaseous oxygen in water suspension at high temperatures in an autoclave and (b) the results of simultaneous leaching of Mn4+ from pyrolusite ore by H2SO4 and FeSO4, ...