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العنوان
Physicochemical studies on fulvic acid metal complexes andits derivatives. Their applications as foliar fertilizer /
المؤلف
Arafa, Mahmoud Mohamed Mohamed.
هيئة الاعداد
باحث / محمود محمد محمد عرفه
مشرف / عبدة سعد الطبل
مشرف / هحود هجدي عبدالله واصل
مناقش / عبدة سعد الطبل
الموضوع
foliar feeding - congress.
تاريخ النشر
2016.
عدد الصفحات
249 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
Physical and Theoretical Chemistry
تاريخ الإجازة
30/5/2016
مكان الإجازة
جامعة المنوفية - كلية العلوم - الكيمياء
الفهرس
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Abstract

The master thesis include four main chapter
I. Introduction
This chapter includes an overview of previous researches for fulvic acid and
catalytic decomposition of hydrogen peroxide .
II. Aim of the work
The work aimed to prepare and characterization fulvic acid and its derivative
and its metal complexes aiming to study their effects in microbial diseases ,
the catalytic effect and application of its complexes as foliar fertilizer .
III. Experimental
This chapter contains the chemical and instruments used in practical part of
thesis as the follow:
1. Preparation of fulvic acid derivatives
2. characterization of fulvic acid derivatives using:
 Analytical techniques as Elemental analysis (C , H , N and M).
 Spectral techniques as IR , mass spectra .
3. Preparation of metal complexes by reaction fulvic acid derivatives with metal
ions such as: copper(II) , zinc(II) , Mn(II).
4. characterization of the prepared solid complexes using the following
techniques:
 Analytical techniques as Elemental analysis (C , H , N and M).
 Spectral techniques as : IR , UV- Vis , 1H-NMR and ESR).
 Thermal techniques as TGA,DTA.
5. measurement of biological activity
6. Study the catalytic effect of some complexes.
7. Study the application of its complexes as foliar fertilizer. The master thesis include four main chapter
I. Introduction
This chapter includes an overview of previous researches for fulvic acid and
catalytic decomposition of hydrogen peroxide .
II. Aim of the work
The work aimed to prepare and characterization fulvic acid and its derivative
and its metal complexes aiming to study their effects in microbial diseases ,
the catalytic effect and application of its complexes as foliar fertilizer .
III. Experimental
This chapter contains the chemical and instruments used in practical part of
thesis as the follow:
1. Preparation of fulvic acid derivatives
2. characterization of fulvic acid derivatives using:
 Analytical techniques as Elemental analysis (C , H , N and M).
 Spectral techniques as IR , mass spectra .
3. Preparation of metal complexes by reaction fulvic acid derivatives with metal
ions such as: copper(II) , zinc(II) , Mn(II).
4. characterization of the prepared solid complexes using the following
techniques:
 Analytical techniques as Elemental analysis (C , H , N and M).
 Spectral techniques as : IR , UV- Vis , 1H-NMR and ESR).
 Thermal techniques as TGA,DTA.
5. measurement of biological activity
6. Study the catalytic effect of some complexes.
7. Study the application of its complexes as foliar fertilizer.The master thesis include four main chapter
I. Introduction
This chapter includes an overview of previous researches for fulvic acid and
catalytic decomposition of hydrogen peroxide .
II. Aim of the work
The work aimed to prepare and characterization fulvic acid and its derivative
and its metal complexes aiming to study their effects in microbial diseases ,
the catalytic effect and application of its complexes as foliar fertilizer .
III. Experimental
This chapter contains the chemical and instruments used in practical part of
thesis as the follow:
1. Preparation of fulvic acid derivatives
2. characterization of fulvic acid derivatives using:
 Analytical techniques as Elemental analysis (C , H , N and M).
 Spectral techniques as IR , mass spectra .
3. Preparation of metal complexes by reaction fulvic acid derivatives with metal
ions such as: copper(II) , zinc(II) , Mn(II).
4. characterization of the prepared solid complexes using the following
techniques:
 Analytical techniques as Elemental analysis (C , H , N and M).
 Spectral techniques as : IR , UV- Vis , 1H-NMR and ESR).
 Thermal techniques as TGA,DTA.
5. measurement of biological activity
6. Study the catalytic effect of some complexes.
7. Study the application of its complexes as foliar fertilizer.IV. Result and discussion
This chapter includes spectroscopic (IR , UV- Vis , Mass and ESR) and
elemental studies of the ligands and its metal complexes were reported. The
electronic spectral data confirmed octahedral structures for The chelates. The ESR
spectra for Cu(II) chelates show axial typ (dx
2-y
2) ground state with covalent bond
character.
For application as foliar fertilizer The synthesized metal chelates
were evaluated as plant growth promoter and productivity ability of the organically
chelated metal nutrients on pepper plant. The growth characters like plant height,
leaves area, number of flowers, number of branches per plants and total yield per
Plant was determined after last harvest. .
The antimicrobial activity revealed the compounds recorded an activity
against Candida albicans fungi . In contrary, it was found that most compounds
exhibit antibacterial activity against the other tested types of microbes. complex (3)
and (12) represented the most sensitive complex against Candida albicans fungi,
whereas complex (12) recorded moderate activity against Escherichia coli and
Streptococcs pneumonia.
The catalytic decomposition of H2O2 in presence of [Cu(II)Fulvate] complex
as a catalyst, depends upon the concentration of the catalyst , temperature and
slowed with high concentrations of H2O2.The rate of the reaction is of pseudo
first order with respect to the concentration of the catalyst and temperature .
The proposed mechanism involves reduction of Cu(II) to Cu(I), during the slow
rate determining step.