1. الرئيسية
  2. Thesis

Thesis

Solubility and coordination study of some transition metal oxides in new choline chloride/ tartaric acid ionic liquid

       Choline chloride / tartaric acid room temperature ionic liquid was prepared and the obtained phase diagrams of the mixture showed eutectic point at 5 oc. The ionic liquid showed a conductive properties, high density and low PH values. Secondly, the dissolution of Co3O4, CrO3, NiO, CuO, and ZnO. Were studied and found   soluble in choline chloride / tartaric acid ionic liquid as their solubilities were determined by measuring the dissolved metal by atomic absorption from room temperature up to 100 oc.

إنجليزية

Photochemical Radiation and Kinetics Studies of Tris (Alkylxanthato) Chromium (III) Complexes in DMSO Solvent

          Chromium (III) complexes were prepared from sulphur containing ligands; Potassium alkyl xanthate, (PAX), these complexes were:

1- Tris (methylxanthato) chromium (III) complex Cr(mex)3.

2- Tris (ethylxanthato) chromium (III) complex    Cr(etx)3..

3- Tris (isopropylxanthato) chromium (III) complex Cr(prx)3.

4- Tris (butylxanthato) chromium (III) complex   Cr(bux)3.

5- Tris (hexylxanthato) chromium (III) complex   Cr(hex)3.

إنجليزية

Spectrophotometric Study for the determination of Chromium, Vanadium and its application

   This thesis falls into three main chapters. Chapter I deals with a general survey of literature which discusses an introduction for chromium and vanadium (discovery, valances, uses, availability and toxic effects);also it includes the different techniques used for there determination.Focus was made on the determination of chromium and vanadium ions using spectrophotometric method in various different biological,industrial, drinking and sewage water samples.

إنجليزية

SYNTHESIS AND STUDY OF MIXED LIGAND COMLEXES OF PALLADIUM (II) AND COPPER (II)

 The chemistry of Palladuim and Copper is briefly reviewed, with emphasis on their +2 oxidation state, unique properties and structures of their complexes, beside the basic aspects of bonding, structure and geometrical aspected of metal complexation. The structure and bonding chemistry relevant to the use of dithiooxamide in metal complex synthysis is discussed and related to the questions posed in this

إنجليزية

Preparation and Characterization of Molten salts (Ionic Liquids) Based on Sulfonate Compounds

 The work presented in this thesis includes the preparation and characterization of choline dodecyl benzene sulfonate and phenyl trimethyl ammonium dodecyl benzene sulfonate, which were prepared and showed almost room temperature molten salts (ionic liquids) of 118 oC and 91.9 oC respectively, as shown in scheme (1): (Ammonium dodecyl benzene sulfonate /choline chloride) mixture has a deep eutectic point of 15 oC, while the two mixtures (benzoic acid / choline chloride) and (salicylic acid / choline chloride) gave a similar eutectic point of 60 oC, which were co

إنجليزية

Investigation of the D.C Electrical Conductivities of PVC and PMMA Composites with some Ionic liquids at variable Temperatures

either alone or composite with ionic liquids up to 110 oC, choline dodecyl benzene sulfonate, ammonium dodecyl benzene sulfonate and choline chloride / urea were added in 10 wt % and 20 wt %. The conductivities of both composite polymers were improved changing the behavior of these polymers from insulator into antistatic characterization as their conductivities reach 10-9 S. cm-1.

إنجليزية

Biochemical profile associated with thyroid hormones variation in pregnancy

    Pregnancy is associated with normal physiological changes that assist fetal survival as well as preparation for labour. It is typically broken into three trimesters, each of about three months. These distinctions are useful in describing the changes that take place over time. Biochemical parameters reflect these  adaptive changes are clearly distinct from the non-pregnant state. The mother and the placenta produces many hormones, maternal thyroid function during pregnancy is important for both the mother and the developing fetus.

إنجليزية

Synthesis and Characterization of Fe (III), Co (II) , and Mn (II) with 2- (Arylhydrazone )- Benzothiazoles Complexes

The present work can be  divided into two parts :-

Part one : - Synthesis of six 2-(arylhydrazone) benzothiazole ligands and their Fe(III),Co(II) and Mn(II) complexes:  

     The six ligands were prepared according to the following steps:-

     Step-1- :-hydrazinolysis of 2-Mercaptobenzothiazole gave 2-hydrazino benzothiazole .

إنجليزية

Synthesis of some Heterocyclic Compounds derived from oxalic acid and evaluation The Biological activity for some of them

This work involves synthesis of different five and six membered heterocyclic rings starting from oxalic acid and divided into four different parts and the reaction steps for each part are summarized as shown below.

First part:

    This part involved the synthesis of pyridazin ,phthalazin, pyrazole ,pyrazolone and triazole derived from oxalic acid hydrazide .Scheme (I).

Second part:

إنجليزية
المزيد