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Preparation Some New Complexes That Can Be Used as the Dental Filling
ISBN: 9783843394048 / Angielski / Miękka / 124 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The work present in this book deals with preparation and characterization of new complexes which contain some transition ions ( Sc3+, Ti3+, V5+, Cr3+, Mn2+, Fe3+, Co2+, Ni2+, and Cu2+) and non transition metal ions ( Ba2+, Ca2+, Zn2+, Cd2+, and Sn2+) with ligands ( Thymol, Vanillin, o, m, p-Cresol, Salicylic acid, Methyl salicylaste, Guaiacol, Eugenol, and Menthol). The prepared complexes subsequently tried as dental filling passing the required tests of color, pH, setting time, consistency, compressive strength, film thickness, microlekage, and antibacterial. The complex [...
The work present in this book deals with preparation and characterization of new complexes which contain some transition ions ( Sc3+, Ti3+, V5+, Cr3+,...
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cena:
263,91 |
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Approaches to photo activated cytotoxins
ISBN: 9783844382365 / Angielski / Miękka / 328 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The synthesis and coordination chemistry of elevenbridging ligands, eight of which are new compounds, are described. These ligands are all based on thetridentate terpyridyl system. The other metal ionbinding sites of these ligands containpyridine/bipyridine/pyrazole rings oramine/azamacrocycles domains. In these ligands, thetwo metal ion binding sites are differentiated by thenumber of atoms in each site, the configuration ofthe binding site or the types of donor atom that arepresent. Many of the complexes synthesized aremono-ruthenium(II) complexes where Ru(II) ions aresituated in the...
The synthesis and coordination chemistry of elevenbridging ligands, eight of which are new compounds, are described. These ligands are all based on th...
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353,37 |
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High Capacity Ion-exchange Adsorbents from co-disposal of AMD and FA
ISBN: 9783844310283 / Angielski / Miękka / 268 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This book presents the results for the physical and chemical characterisation of co-disposal precipitates prepared from the co-disposal of acid mine drainage and fly ash. The prepared high capacity ion exchange adsorbents were characterised using fundamental characterisation tools such as X-ray Diffraction Spectrometry (XRD), X-ray Fluorescence Spectrometry (XRF), Scanning Electron Microscopy (SEM), Inductively Coupled Plasma Mass Spectrometry (ICP-MS), Fourier Transformed Infrared Spectrometry (FTIR) and Cation Exchange Capacity (CEC). The prepared zeolitic material were also applied in...
This book presents the results for the physical and chemical characterisation of co-disposal precipitates prepared from the co-disposal of acid mine d...
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353,37 |
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Acid-Base Properties of Oxide Systems in Melts and Aqueous Solutions
ISBN: 9783844314748 / Angielski / Miękka / 96 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Steel quality depends on various factors, i.a. on the slag basicity and oxidation potential. These values can be determined by means of emf measurement using solid electrolyte based sensors. Liquid iron can serve as a cation electrode. Activity of ferrous oxide and manganese oxide can be found out. Ferrous oxide activity determines the oxidation potential and manganese oxide activity can be used for the basicity estimation. Sulphide and phosphate capacity can be calculated and distribution coefficients of oxygen, sulphur, manganese, and other elements can be predicted....
Steel quality depends on various factors, i.a. on the slag basicity and oxidation potential. These values can be determined by means of emf measurem...
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cena:
219,18 |
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Embarking on New Paths in the World of Metallacarboranes
ISBN: 9783845412108 / Angielski / Miękka / 80 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. New Paths in the World of Metallacarboranes provides an overview of the recent progress in the field of metallacarborane chemistry while also introducing the reader to four newly synthesized and distinctly unique 12-vertex compounds. The author emphasizes several of the techniques used in this sub-field of inorganic chemistry related to the synthesis, characterization, and analysis of caged metallacarboranes. The characterization data is conveniently recorded in four tables while a series of figures help the reader visualize complicated techniques and elaborate chemical structures. Although...
New Paths in the World of Metallacarboranes provides an overview of the recent progress in the field of metallacarborane chemistry while also introduc...
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cena:
219,18 |
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Naturally Occurring Radioactive Material in the Petroleum Wastes
ISBN: 9783843389839 / Angielski / Miękka / 104 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The first aim of this study is to evaluate the radiological impact of the oil refining process to obtain an extensive view to the radiological bidden of the petroleum industry in Egypt. The second aim is intended to set-up working guidelines for the workers in the companies and regulators with an understanding of occupational and environmental risks from TENORMs generated in oil refining facilities in Egypt beside the disposal of sludge without the treatment to environment. The last aim of the study is the recovery of the hydrocarbon content of the sludge using petroleum cuts and solves the...
The first aim of this study is to evaluate the radiological impact of the oil refining process to obtain an extensive view to the radiological bidden ...
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cena:
219,18 |
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Economic Exploitation of Rice Straw
ISBN: 9783843390293 / Angielski / Miękka / 164 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Rice straw is an alternative source for the production of cellulose pulp and some other useful materials such as xanthated cellulose. The conditions of preparation (pulping, bleaching and xanthation) and factors affecting the main properties of the produced cellulose pulp and xanthated cellulose (the effect of alkali concentration, time of pulping and weight / volume ratio when boiling) are intended. The resulting intermediate products as well as the final products, were characterized and compared at each experimental step. The IR absorption spectral analysis were undertaken according to...
Rice straw is an alternative source for the production of cellulose pulp and some other useful materials such as xanthated cellulose. The conditions o...
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cena:
304,16 |
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Studies on Mono- And Dioxorhenium(v) Complexes
ISBN: 9783844382099 / Angielski / Miękka / 96 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Understanding of oxorhenium(V) Rhenium(V) complexes as radiopharmaceuticals for therapy and diagnosis have received attention, because of their suitable radionuclear properties, i.e., 186Re: Emax = 1.1 MeV for beta-emission and Emax = 0.137 MeV for gamma-emission with t1/2 = 90.6 h, 188Re: Emax = 2.1 MeV for beta-emission and Emax = 0.155 MeV for gamma-emission with t1/2 = 17 h. Hence, chemical properties of various monooxo- and dioxorhenium(V) (ReO3+ and ReO2+) complexes have been examined as basic studies for their application to radiopharmaceutical. However, only limited information is...
Understanding of oxorhenium(V) Rhenium(V) complexes as radiopharmaceuticals for therapy and diagnosis have received attention, because of their suitab...
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cena:
219,18 |
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Topics in Phosphate Chemistry
ISBN: 9789810226343 / Angielski / Twarda / 420 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This book aims to open new fields of interest in phosphate chemistry and to suggest a new system of classification for phosphates. Due to the very rapid development of this branch of chemistry during the last thirty years and the very confusing nomenclature often used in chemical literature, this first attempt seems not only justified but necessary. The suggested classification is not revolutionary, with respect to condensed phosphates for instance, but establishes clear boundaries between some categories of compounds such as adducts and heteropolyanion-compounds. The first chapters cover the...
This book aims to open new fields of interest in phosphate chemistry and to suggest a new system of classification for phosphates. Due to the very rap...
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cena:
661,20 |
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Application of Some Nanomaterials to Glucose Biosensors
ISBN: 9783838398457 / Angielski / Miękka / 232 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. |
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353,37 |
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Photostabilization of PVC by Inorganic Complexes
ISBN: 9783843365260 / Angielski / Miękka / 80 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The work described in this thesis, 2-thioacetic acid benzothiazole chelate complexes. Infrared, ultraviolet-visible, spectrophotometric techniques, magnetic susceptibility, atomic absorption conductivity measurement and other physical properties were used to characterize the free ligand and the above chelate complexes. All these compounds were act as stabilizer in PVC films. The rate of photodegradation and photostabilization of PVC film were monitored by measuring the carbonyl, polyene and hydroxyl indices (Ico, Ipo and IoH) values as afunction with irradiation time and ultraviolet-visible...
The work described in this thesis, 2-thioacetic acid benzothiazole chelate complexes. Infrared, ultraviolet-visible, spectrophotometric techniques, ma...
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219,18 |
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A Study of Grafted Vanadium Oxides & V/Zr Mixed Oxides on Alumina
ISBN: 9783838312798 / Angielski / Miękka / 220 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This book discusses studies pursued to identify the vanadium and zirconium oxidation states involved in successful catalytic production of hydrogen from steam reforming of hydrocarbons and alcohols. Vanadium oxides and vanadium/zirconium mixed oxides were loaded on to the support using grafting techniques. It was observed that the reaction of the respective, metal alkoxide precursors proceeded with surface hydroxyl groups slowly. These reactions resulted in "single sites" of the metal oxides on the surface with sub-monolayer to monolayer coverage. The loadings were controlled by...
This book discusses studies pursued to identify the vanadium and zirconium oxidation states involved in successful catalytic production of hydrogen ...
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353,37 |
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Heavy Metal Adsorption
ISBN: 9783838380261 / Angielski / Miękka / 128 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Pollution in our planet by heavy metals is an important environmental problem threatening the health of human populations and natural ecosystems. Agricultural and industrial pollution release large amounts of heavy metals into the atmosphere, surface water, soil, and plants. The aim of this research work is to determine the potential of application of sodium polyphosphate modified kaolinite clay as an adsorbent for the removal of lead (II), zinc (II) and cadmium (II) ions from aqueous solutions. The adsorbent dosage, pH, temperature and contact time were investigated. The adsorption isotherms...
Pollution in our planet by heavy metals is an important environmental problem threatening the health of human populations and natural ecosystems. Agri...
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cena:
263,91 |
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Dithiocarbazates and Their Transition Metal Complexes
ISBN: 9783838319728 / Angielski / Miękka / 96 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Sulphur-nitrogen donor chelating agents, i.e. dithiocarbazates and their metal complexes have been widely studied because of their unusual physico- chemical properties, novel structural features, potentially useful chemotherapeutic properties and their relevance to biological systems. Dithiocarbazates and their metal complexes have experienced long standing applications in the catalysis of chemical and petrochemical processes, as analytical reagents and substitutes for dithiocarbamates as agricultural fungicides and accelerators of vulcanization of rubber. The dithiocarbazates...
Sulphur-nitrogen donor chelating agents, i.e. dithiocarbazates and their metal complexes have been widely studied because of their unusual physico-...
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219,18 |
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Dithiocarbazates: Coordination compounds and biological activities
ISBN: 9783838379944 / Angielski / Miękka / 212 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Schiff bases formed from the condensation reaction of S-benzyldithiocarbazate (SBDTC) and S- methyldithiocarbazate (SMDTC) with selected diketones containing isatin derivatives namely isatin,5- fluroisatin,5-chloroisatin,5-bromoisatin and methylisatin have been synthesised.Complexes of cobalt (II), nickel (II), copper (II), zinc (II) and cadmium (II) with these Schiff bases were prepared.X-ray crystallographic study of SB5ClISA and SB5BrISA Schiff bases proved that the condensation reaction between SBDTC with the isatin derivatives occur at the carbonyl position number 3 in the isatin...
Schiff bases formed from the condensation reaction of S-benzyldithiocarbazate (SBDTC) and S- methyldithiocarbazate (SMDTC) with selected diketones con...
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353,37 |
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Cu, Fe, Ni and V complexes with pyridoxal semicarbazones
ISBN: 9783838351339 / Angielski / Miękka / 84 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Coordination chemistry of transition metal complexes incorporating Schiff base ligands semi-, thiosemi and S-methylisothiosemicarbazones pyrodoxals (PLSC, PLTSC and PLITSC, respectively) has not been exploited to any great extent. Except for the pioneer work of an Italian researcher, this monograph contains, for the first time, extensive summary of the synthesis and characterization of the complexes incorporating this class of ligands. In fact, the PLSC and PLITSC-based complexes are reported for the first time. This monograph describes the syntheses, physical/chemical properties, structural...
Coordination chemistry of transition metal complexes incorporating Schiff base ligands semi-, thiosemi and S-methylisothiosemicarbazones pyrodoxals (P...
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cena:
219,18 |
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Heavy Metal Leaching in Different Environments
ISBN: 9783838367491 / Angielski / Miękka / 124 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This study was conducted to provide information on leaching and attenuation of heavy metals on two different soil types applied with sewage sludge (Biosolids). The research was based on soil column leaching procedure to evaluate the leaching capacity of clay and sandy soils. The objectives of the study were: to study the pollution potential of leachate from land application of sewage sludge in relation to the attenuation mechanisms in soils of different characteristics and, to recommend future research aimed at providing a base for development of pollution control procedures and guidelines...
This study was conducted to provide information on leaching and attenuation of heavy metals on two different soil types applied with sewage sludge (Bi...
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cena:
263,91 |
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SYNTHESIS, PROPERTIES AND SURFACE MODIFICATIONS OF CdSe QUANTUM DOTS
ISBN: 9783843363624 / Angielski / Miękka / 204 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The emergence of colloidal semiconductor nanocrystals has generated great fundamental and technical interest in recent years. The size dependent emission property for Cadmium Selenide quantum dots renders it indispensable in the field of nanocrystal-based emitters used in electronic and bioelectronic devices. Investigation of these semiconductor quantum dots reveals the evolution of the electronic structure from an extended solid state to the molecular limit, an extremely important issue of basic and applied research in condensed matter physics. The work presented in this book mainly deals...
The emergence of colloidal semiconductor nanocrystals has generated great fundamental and technical interest in recent years. The size dependent emiss...
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cena:
353,37 |
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Oxidation Resistance of ZrB2 Based Ultra-High Temperature Ceramics
ISBN: 9783843379892 / Angielski / Miękka / 112 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Specimens of ZrB2 containing various concentrations of SiC, TaB2, and TaSi2 were pressureless-sintered and post-HIPed to theoretical densities. Oxidation resistances were studied by scanning thermogravimetry over the range 1150 - 1550 C, and isothermal thermogravimetry at 1200 - 1900 C. Most silicon-containing compositions formed a glassy surface layer, covering an interior oxide layer. This interior layer was less porous in tantalum-containing compositions. Small concentrations of TaB2 additions were more effective at increasing oxidation resistance than equal additions of TaSi2. The benefit...
Specimens of ZrB2 containing various concentrations of SiC, TaB2, and TaSi2 were pressureless-sintered and post-HIPed to theoretical densities. Oxidat...
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cena:
219,18 |
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Electrogeneration of Hydroxyl Radicals for Water Disinfection
ISBN: 9783838397931 / Angielski / Miękka / 140 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. An electrochemical cell has shown successfully tested in this project to generate OH radical from Fe/O2 battery via Fenton's reaction under various working conditions for water disinfection. The cell contained two electrodes where iron (Fe) acts as an anode and oxygen (O2) acts as a cathode. Sodium sulfate (Na2SO4) was selected as a background electrolyte in all experiments to produce OH radical in-situ in an acidic solution aqueous by oxidation of iron (II) with hydrogen peroxide (H2O2) using a Reticulated Vitreous Carbon (RVC) as a catalyst.
An electrochemical cell has shown successfully tested in this project to generate OH radical from Fe/O2 battery via Fenton's reaction under various wo...
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cena:
263,91 |
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