Results 231 to 240 of about 45,062 (259)
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Synthesis of MgNb2O6 by coprecipitation
Materials Research Bulletin, 2006A simple coprecipitation technique was used successfully to synthesize fine powders of MgNb{sub 2}O{sub 6} (MN) phase. An aqueous mixture of ammonium carbonate and ammonium hydroxide was used to precipitate Mg{sup 2+} and Nb{sup 5+} cations as carbonate and hydroxide respectively under basic conditions. This precipitate on heating at 750 deg.
S.C. Navale, A.B. Gaikwad, V. Ravi
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PbTiO3 preparation through coprecipitation methods
Journal of Materials Science Letters, 2001Precursor powders to obtain SrTiO3 were prepared by using 8-hydroxyquinoline precipitant agent. The residues from the thermal decomposition, followed by TG/DTG/DTA, were characterized by XRD and it could be verified that the mixed oxides could be obtained varying the thermal decomposition conditions like atmosphere and heating rate.
Zorel, H. E. +2 more
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Characterization and Evaluation of Tenoxicam Coprecipitates
Drug Development and Industrial Pharmacy, 2000Tenoxicam is a nonsteroidal anti-inflammatory drug belonging to the oxicam group. The drug is slightly soluble in water. In a trial to increase its dissolution, different commonly used excipients were selected to prepare coprecipitates with tenoxicam. The coprecipitates were prepared using the solvent evaporation method, and the ratio used was 1:3 drug
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Controlled release coprecipitates: formulation considerations
Journal of Controlled Release, 1995Abstract Extended release dosage forms can be prepared by a number of methods and coprecipitation of drugs with polymers is one of them. Coprecipitation in turn can be achieved by several methods and dissolution of drugs and polymer in a solvent followed by the addition of a non-solvent with agitation is one of them.
Mansoor A. Khan +5 more
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Characterization of coprecipitated nickel catalysts
Applied Catalysis, 1989Abstract The characterization of coprecipitated nickel catalysts was investigated using X-ray diffraction, transmission electron microscopy, thermogravimetric analysis, infrared spectrometry, X-ray photoelectron spectroscopy and secondary ion mass spectrometry.
Souichi Uchiyama* +3 more
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Coprecipitation: Basic theory and some preliminary experimental results
1995The performance assessment of repositories for spent nuclear fuel need, among other things, data describing the solubilities of radionuclides in the near field and far field. The solubility limits are often used in order to estimate the maximum concentrations of radionuclides during their possible transport to the biosphere.
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Sulfide/Calcium Carbonate Scale Coprecipitation
Journal of Petroleum Technology, 2014This article, written by Dennis Denney, contains highlights of paper SPE 168182, ’Sulfide Scale Coprecipitation With Calcium Carbonate,’ by C. Okocha and K.S. Sorbie, SPE, Heriot-Watt University, prepared for the 2014 SPE International Symposium and Exhibition on Formation Damage Control, Lafayette, Louisiana, 26-28 February.
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Coprecipitation of Pu (IV) with organic coprecipitants
The Soviet Journal of Atomic Energy, 1961V. I. Kuznetsov, T. G. Akimova
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Zirconia ceramics from coprecipitated powders
Refractories and Industrial Ceramics, 1997The possibility was explored of making dense and strong partly stabilized zirconia (PSZ)-based ceramic materials from coprecipitated zirconium and yttrium hydroxide powders of both factory and laboratory preparation. The effect of dry and wet grinding, powder burning, cold isostatic pressure (CIP) at≤0.8 GPa, and sintering at ≤1600°C on the ...
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Coprecipitation of Mitochondria and Chloroplasts
Nature, 1961R M, LEECH, R J, ELLIS
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