搜索结果: 16-27 共查到“化学 Iron”相关记录27条 . 查询时间(0.109 秒)
Template Synthesis and Structural Characterization of Homo Binuclear Chromium(III), Manganese(III), Iron(III), Cobalt(III), and Ruthenium(III) Complexes with Octaazamacrocyclic Ligands
Synthesis chromium manganese iron cobalt ruthenium macrocycles
2010/4/19
The Schiff base octaazamacrocyclic ligands derived from primary diamines and 3,6-dimethyl/diphenyl-4,5-diazaocta-3,5-diene-2,7-dione, and their binuclear complexes [M2LCl4]Cl2 [M = Cr(III), Fe(III), C...
HY沸石超笼“半三明治”环戊二烯铁物种的接枝(Grafting of “Half-sandwich” Cyclopentadiene Iron Species into HY Supercage)
HY沸石 Cp2Fe 接枝反应 半三明治 环戊二烯铁
2010/8/25
在真空条件下研究了Cp2Fe在HY沸石表面的接枝反应，并用原位FTIR、ICP、XRD、TPD-MS和UV-Vis DRS等方法对接枝产物的组成、结构及性质进行了表征。结果表明，在低于423 K的温度下，Cp2Fe可以强吸附在沸石的超笼内，并被氧化为Cp2Fe+阳离子；当在423 K长时间加热时，Cp2Fe+可与超笼表面的酸性中心发生化学反应，脱除一个环戊二烯基团，在沸石超笼形成“半三明治”环戊二...
Synergic effect of calcium oxide and iron (III) oxide on the dechlorination of hexachlorobenzene
Dechlorination HCB CaO a-Fe2O3 Synergic effect
2013/12/12
Dechlorination of hexachlorobenzene (HCB) was achieved by a mixture of commercial CaO and a-Fe2O3 (CaO/a-Fe2O3) in closed systems at temperatures of 300 C and 350 C, which exhibited a synergic effec...
Selective Oxidation of Thiols to Disulfides Catalyzed by Iron(III) -- Tetra Phenyl Porphyrin Using Urea-Hydrogen Peroxide as Oxidizing Reagent
Thiols Fe (TPP) Cl Urea hydrogen peroxide disulfides
2010/4/20
Oxidation of thiols to disulfides catalyzed by iron(III) -- tetra phenyl prophyrin Fe (TPP)Cl was investigated using urea-hydrogen peroxide adduct (UHP) as an oxidant in methanol as a solvent.
Determination of Cadmium, Copper, Iron, Manganese, Lead and Zinc in Lichens and Botanic Samples by Electrothermal and Flame Atomic Absorption Spectrometry
Lichen ETAAS Ni + Pd + TA Copper Iron
2010/4/20
Within the framework of the International Atomic Energy Agency (IAEA) Analytical Quality Control Service (AQCS) Chemistry Unit a research program was initiated for the identification of trace elements...
Spectrophotometric Determination of Iron(II) with 5-Nitro-6-amino-1,10-phenanthroline
5-Nitro-6-amino-1,10-phenanthroline visible spectrophotometry determination of iron(II)
2010/4/21
A new spectrophotometric method is developed for the determination of Fe(II) with 5-nitro-6-amino-1,10-phenanthroline (NAF). In this work, the effect of factors such as pH, amount of reagent (NAF), re...
The Effect of Nicotinamide on Iron Corrosion in Chloride Solutions
Nicotinamide Iron Corrosion Chloride Solutions
2010/4/22
The use of nicotinamide ``3-pyridineamide'' as an iron corrosion inhibitor was tested in aerated aqueous solutions of NaCl and Na2SO4 for different pH values. Polarization resistance (Rp) measurements...
The Effects of Benzoic Acid in Chloride Solutions on the Corrosion of Iron and Aluminum
Effects Aluminum the Corrosion of Iron
2010/4/22
In this work, the corrosion behavior of iron and aluminum was investigated in 0.1 M NaCl solutions with an initial pH value of 8 and containing various concentrations (0, 30, 150, 300 ppm) of benzoic ...
Determination of Manganese and Iron in Magmatic Rocks After Ultrasonic Leaching by flame AAS
Ultrasonic metal leaching partial leaching magmatic rocks AAS
2010/4/22
Determination of Manganese and Iron in Magmatic Rocks After Ultrasonic Leaching by flame AAS.
Electrothermal Atomic Absorption Spectrometric Determination of Nickel after its Flotation Enrichment by Iron(III) Hexamethylenedithiocarbamate
Nickel preconcentration colloid precipitate flotation iron(III) hexamethylenedithiocar-bamate collector water atomic absorption spectrometric determination
2010/6/27
Abstract. Nanogram quantities of nickel were removed from 1 L samples of dilute aqueous solutions by coflotation. A mixture of hydrated iron(III) oxide (Fe2O3\( \cdot \)xH2O) and iron(III) hexamethyle...
The Effects of Detergent Pollution on the Corrosion of Iron and Aluminium
The Effects of Detergent Pollution Corrosion of Iron Aluminium
2010/6/29
The current-potential values were measured with iron or aluminium electrodes in solutions of 3.5% NaCl containing 30, 150, 300 ppm linear alkylbenzene (LAB) and detergents (LAS) at pH8. Polarization r...
The Effect of phosphate Ions (PO3-4) on the Corrosion of Iron in Sulphat Solutions
phosphate Ions (PO3-4) Corrosion Iron Sulphat Solutions
2010/6/29
The effect of phosphate ions on the corrosion of iron in sulphate solutions at different temperatures (293 K, 313 K, 333 K and 353 K) and at different pH (pH=2.1, 7.2 and 12.3) values was investigated...