CHAPTER ONE 1.0 INTRODUCTION This report is a practical experience acquired by me in the course of my industrial training at Druckfarben Nigeria Limited (DFN) under the student industrial work experience scheme (SWIES). In the earlier stage of science and technology education in Nigeria‚ students were from their respective institutions without any technical knowledge or working experience. It was in this view that students undergoing science and technology related courses were mandated in different
Premium Printing Pigment Viscosity
it comparison with literature though Melting point‚ TLC‚ IR‚ 1H and 13C NMR Abstract: The synthesis of the product: β-D-glucose pentaacetate is done though the acetylation using acetic anhydride with D-glucose with the help of sodium acetate. The recrystallization of the product is done though a polar solvent like water. The Result of this experiment has a percentage yield of 61% and analytical methods that are to detect the products are 1H NMR‚ 13 C NMR‚ COSY‚ FTIR (IR)‚ Thin Layer Chromatography
Premium Acetic acid Nuclear magnetic resonance Solvent
Taking the A Train Chem 106 Section 12 1. Introduction: This lab focused on showing the reaction that takes place between zinc and iodine using only deionized water instead of acetic acid (or vinegar) as we did in the previous lab by adding acetic acid to zinc iodide. The purpose of this lab was to see how water created the reaction and another compound or precipitate. Focus Question: Zn(OH)2 was the product when zinc and iodine were reacted without the presence of acetic acid in the
Premium Base Chemistry Acetic acid
example the precipitate must be either silver chloride‚ AgCl or sodium nitrate‚ NaNO3. Sodium nitrate dissolves readily in water and is therefore soluble. Thus we can conclude that silver chloride is the insoluble precipitate. We can represent the formation of this precipitate by a net ionic equation: Ag+ +NO3 ̄ +Na++Cl ̄→AgCl+NO3 ̄+Na+ Net: Ag+ (aq)+Cl ̄ (aq)→AgCl(s) Ions present in the solution but not involved in forming the precipitate are called spectator ions; in our example these would be Na+
Premium Solubility Ion Chemistry
The chemistry of hairspray What is hairspray: introduction Hair spray (or hair lacquer) is a common household aqueous solution that is used to keep hair stiff or in a certain style. Weaker than hair gel‚ hair wax‚ or glue‚ it is sprayed to hold styles for a short period of time. Using a pump or aerosol spray nozzle it sprays evenly over the hair. Hairspray was first developed and manufactured in 1948 by Chase Products Company‚ based in Broadview‚ Illinois.Its active ingredient is a suitable
Premium Oxygen Ethanol Hairdressing
What is the Difference between Flammable and Combustible Liquids? Put simply‚ flammable and combustible liquids are liquids that can burn. The real difference lies within their flash point range‚ or lowest temperature at which vapours of the material will ignite when supplied with an ignition source. Flammable and combustible liquids are utilised in most workplaces‚ from manufacturing to retail and service entities. To ensure the safety of property‚ people‚ and the environment‚ both flammable
Premium Ethanol Ethanol Gas
Experiment II. Separation Of a Sample Mixture By Liquid-Liquid Extraction Reading assignment: Techniques in Organic Chemistry 2nd ed pages 75-99. 3rd ed pages 113-140. Topics and Techniques i) identification of solvent layers of two immiscible solvents ii) partioning of a compound between two immiscible solvents and determination of KD iii) liquid-liquid extraction with aqueous acids and bases with organic solvents. iv) use of drying agents Introduction Liquid-liquid extraction is a method
Premium Solubility Acetic acid Solvent
used extensively for rapid curing of butyl stocks requiring heat resistance. Butyl of this type is used to fabricate high voltage wire and cable products‚ moulded electric components‚ and heat resistant seals and hose. PQD has also been used as part of the curative system for liquid butyl elastomers. These compounds are formulated as coatings‚ sealants and electrical encapsulants. The proper choice of PQD and a co-curative‚ such as lead dioxide or tertiary-butyl perbenzoate‚ will effect room temperature
Premium Electricity Electrical engineering Temperature
thiamine hydrochloride‚ or vitamin B1‚ as a catalyst. The percent yield of the product was sub-par. It was found to be 54.4%‚ which may have been due to the formation of other byproducts during the experiment. For example‚ the benzoin and copper(II) acetate mixed with ammonium nitrate and acetic acid could have caused the copper(II) acetate to not fully react with the benzoin. This side-reaction led to less benzoin intermediate which in turn led to a less yield of benzil product. Additionally‚ the
Premium Acetic acid Vitamin B vitamins
requirements. PEP Process Module 2 19 Aug 1999 SRI Consulting About This Process Current global capacity for acetic acid exceeds 6.4 million t/yr. Downstream applications for the acid are primarily as a precursor for vinyl acetate monomer synthesis‚ for acetic anhydride production‚ and as a solvent in purified terephthalic acid production. Methanol carbonylation to produce acetic acid using a homogeneous Rh catalyst accounts for more than 55% of global capacity‚
Premium Acetic acid