Chemistry Essays

Heterocycles: Types and Biosynthesis
Example essay. Last modified: 29th Jan 2018
Introduction: Heterocycles1 are one of the major classes of organic compounds. They are cyclic compounds containing one or more heteroatom (oxygen, nitrogen, sulphur etc.). These compounds are of biological and in...

Analytical Approaches in the Pharmaceutical Industry
Example essay. Last modified: 29th Jan 2018
Introduction: Miracles do happen and chances of happening such events are rare. Scientific discoveries have also seen such miracles. The approach and efforts required in scientific happenings are based on basic pr...

Chromium and Selenium Concentration in Cancer
Example essay. Last modified: 29th Jan 2018
Introduction: The ratio between chromium and selenium concentration among various age groups of cancer group has also been studied and it shown in table 5.48, and it has been observed that all groups of cancer pat...

Synthesis and Characterization of Tetraphenyltin
Example essay. Last modified: 29th Jan 2018
Introduction: ABSTRACTS Tetraphenyltin in high yield has been prepared by the reaction of chlorobenzene, chlorotin (IV) and sodium metal in dry toluene characterized by Infra-red spectroscopy. Introduction Organic...

Colon Specific Drug Delivery
Example essay. Last modified: 29th Jan 2018
Introduction: ABSRACT The colon is a site where both local and systemic delivery of drugs can takes place. Colon specific drug delivery has achieved importance for the delivery of drugs for the treatment of local ...

Synthesis of Polyelectrolyte Pani Membrane
Example essay. Last modified: 29th Jan 2018
Introduction: SYNTHESIS OF POLYELECTROLYTE PAni MEMBRANE BY PHASE INVERSION AND ITS CHARACTERIZATIONS NURUL IZZATI IZNI BT MAT YUSOFF   INTRODUCTION During the last few decades, the application of membrane b...

Determining Ethanol in Fermented Glutinous Rice
Example essay. Last modified: 29th Jan 2018
Introduction: 1.0 Introduction Fermented glutinous rice is a popular dessert among Malaysian consumers. It consist of carbohydrate such as rice and it need to be fermented for a few days until the glucose have bee...

MEL and Analogues: Structures and Properties
Example essay. Last modified: 29th Jan 2018
Introduction: CHAPTER 2 LITERATURE REVIEW 2.1 Melamine MEL is an organic compound which had been closely associated with milk adulterant scandal between the year 2007 and 2008. Having a chemical formula of C3H6N6,...

Enthalpy of Displacement
Example essay. Last modified: 29th Jan 2018
Introduction: Saran Singh Sound Aim: To determine the enthalpy change of displacement between zinc powder and copper sulphate Zn (s) + CuSO4 (aq) Cu (s) + ZnSO4 (aq) Chemicals – CuSO­­­4 Solution ( concen...

Quantitative Chemical Analysis
Example essay. Last modified: 29th Jan 2018
Introduction: Quantitative chemical analysis, which is commonly referred to as stoichiometry, is the quantitative relationship between the reactants and the products in a balanced chemical equation. The term stoic...

Removal of TBP From Aqueous Phase
Example essay. Last modified: 29th Jan 2018
Introduction: ABSTRACT PUREX process involves the use of 30% TBP in Dodecane to extract the fissile materials. However, due to mutual solubility some amount of TBP gets transferred into the aqueous phase. This tra...

Nanotechnology based Drug Delivery Systems
Example essay. Last modified: 29th Jan 2018
Introduction: Richard Chen Introduction In the past century, nanotechnology has been a prominent theme for many science fiction writers. However, thanks to recent developments in chemistry and manufacturing, we ...

Synthesis Method of Napthoyl-thiourea Derivatives
Example essay. Last modified: 26th Jan 2018
Introduction: CHAPTER 3 METHODOLOGY This chapter explains briefly on the synthesis method of napthoyl-thiourea derivatives, experimental characterization techniques (CHNS, FTIR, UV-Vis, UV-F, 1H and 13C NMR, Singl...

Optically Active Polymers
Example essay. Last modified: 26th Jan 2018
Introduction: Optically active polymers play very important role in our modern society. The speciality of optically active polymers are known with its various characteristics as occurred naturally in mimicry. The ...

The Reductive Carbonylation of Organic Nitro Compounds
Example essay. Last modified: 26th Jan 2018
Introduction: Introduction: The development of environmentally more benign and efficient synthetic methods has stimulated the evolution of new strategies and technologies for the synthesis of useful products in a ...

Developing Natural Gas Sweetening Processes
Example essay. Last modified: 26th Jan 2018
Introduction: Introduction Natural gas contains large amounts of methane (CH4), but also all kinds of impurities such as sour gases (e.g., H2S and CO2). The acid gases in the natural gas should be removed to com...

Analysis of Heavy Metals Contamination in Urban Dust
Example essay. Last modified: 26th Jan 2018
Introduction: Literature Review 2.1 REVIEW OF REPORTED STUDIES 2.1.1 Assessment of Heavy Metal in Street Dust in Kathmandu Metropolitan City and their Possible Impacts on the Environment. Chirika S.T. ...

Poultry Waste as an Organic Fertilizer
Example essay. Last modified: 26th Jan 2018
Introduction: LITERATURE REVIEW The several studies have been reported that the higher amounts of metals are present in different organic wastes, such as poultry fertilizer (Lopes et al., 2011; Bolan et al. 2004) ...

Ammonium Dihydrogen Phosphate (ADP) Crystals Structure
Example essay. Last modified: 26th Jan 2018
Introduction: Ammonium dihydrogen phosphate (ADP) crystals are widely used as the second, third and fourth harmonic generator for Nd:YAG and Nd:YLF lasers. It belongs to the tetragonal system with the space group ...

Luteolin and Kaempferol From Cassia Alata
Example essay. Last modified: 26th Jan 2018
Introduction: In this article we are also presenting the antibacterial, antifungal and antioxidant activity of the methanolic extract of its leaves (CA-L), stem......

Effects of Lab by Inquiry in Educational Settings
Example essay. Last modified: 26th Jan 2018
Introduction: Briana Bruske   Abstract The purpose of this literature research was to distinguish the differences between verification and inquiry based laboratory experiments in educational settings, and their e...

Paracetamol: History, Structure and Dangers
Example essay. Last modified: 26th Jan 2018
Introduction: What is Paracetamol? Depending on where you live in the world, N-(4-hydroxyphenyl)ethanamide is known as Paracetamol or acetaminophen with the molecular formula of C8H9NO2. Paracetamol or acetamino...

Standardization of Polyherbal Formulations for Drug Analysis
Example essay. Last modified: 26th Jan 2018
Introduction: Standardization of polyherbal formulations is essential in order to assess the quality of drugs, based on the concentration of their active principles (markers or standards). As Mentat tablet (MT), a...

Lab Report: Heat Capacity Ratio For Gases
Example essay. Last modified: 26th Jan 2018
Introduction: Jekathjenani Ratnakumaran   Introduction: Heat capacity of gases is the amount of heat required to increase the temperature of one mole of the gas through one degree Celsius at constant pressure o...

Oxidative Decolourisation of Rosaniline Hydrochloride (RAH)
Example essay. Last modified: 26th Jan 2018
Introduction: Kinetic, thermodynamic studies for oxidation of rosaniline hydrochloride dye by persulphate in ambient temperatures Z. M. Abou-Gamra* Abstract The kinetics of the oxidative decolourisation of rosanil...