experiment to be successful. Keywords: fruit flavors‚ banana flavor‚ acyl esterification‚ reflux‚ extraction‚ washing‚ drying‚ drying agents Introduction Esters are a group of organic compounds that give out distinct odors. Examples of esters are fruit flavors such as the product of this experiment. Isoamyl acetate or banana flavor is an ester which resulted from an acyl esterification between Isoamyl alcohol and Acetic anhydride. Acyl esterification is a reaction between acid anhydrides and acyl
Premium Ester Carboxylic acid Acetic anhydride
Abstract The purpose of this experiment is to synthesize isopentyl acetate via an esterification reaction between glacial acetic acid and isopentyl alcohol‚ using concentrated sulfuric acid as a catalyst. The product was washed using sodium bicarbonate and water‚ then dried with anhydrous sodium sulfate. It was then distilled using a standard simple distillation apparatus. The percent yield of isopentyl acetate was 60.39%. This may have been low due to incomplete distillation or evaporation once
Premium Acetic acid Oxygen Ester
Pinnata seed oil is obtained after the mechanical extraction of rubber seed is using Soxhlet Extractor. The alcohol used in this research is methanol which is used to react with Pongomia Pinnata seed oil with a base or acid catalyst to produce methyl ester. Acid catalyst used in this research is potassium hydroxide (KOH) and base catalyst used is sodium hydroxide (NAOH). Parameter that concerned in this research is temperature and the ratio of alcohol and Pongomia Pinnata seed oil introduced in the microwave
Premium Biodiesel Fat Palm oil
Aaron Papp Dr. Bell ENGL 1102 8 February 2013 Symbolism at Its Finest Many authors through time and through this day and age have used symbolism in their works. Critics may say there is too much symbolism in some works. There is never too much symbolism in a work. Symbolism enhances the characters‚ words‚ places‚ and objects to levels that a average work could not reach without the use of symbolism. The more symbolism an author uses‚ the more attached a reader becomes to the story. Look at August
Premium Slavery in the United States Julius Caesar The Wall
simplest dicarboxylic example is oxalic acid (COOH)2‚ which is just two connected carboxyls. Mellitic acid is an example of a hexacarboxylic acid. Other important natural examples are citric acid (in lemons) and tartaric acid (in tamarinds). Salts and esters of carboxylic acids are called carboxylates. When a carboxyl group is deprotonated‚ its conjugate base forms a carboxylate anion. Carboxylate ions are resonance stabilized and this increased stability makes carboxylic acids more acidic than alcohols
Premium Carboxylic acid Acetic acid
Temperature INTRODUCTION The main purpose of the experiment is to investigate the effects of column temperature and flow rate on the separation of methyl esters compounds. On top of that‚ the experiment is conducted to explore the gas chromatography‚ which is include the concepts of retention time and resolution using a mixture of methyl esters: methyl linolate‚ methyl laurate‚ methyl myristate‚ and methylpalmitate and methyl stearate. In this experiment‚ the isothermal and temperature programming
Premium Chromatography Gas chromatography
A- HPTLC Flavonoid profile of methanol extract M. concanensis leaves B- HPTLC Flavonoid profile of methanol extract M. concanensis flowers C- HPTLC Flavonoid profile of methanol extract M. concanensis seeds 4.2.3.1 C) HPTLC Phenol profile of M. concanensis Nimmo. HPTLC finger printing of M. concanensis was done by using selected solvent system Chloroform: Ethyl acetate: Formic acid (50%:40%:10%v/v) for leaf‚ flower and seed extracts‚ visualized under UV 254 and 366 nm showed more
Premium Carboxylic acid Alcohol Acetic acid
Preparation and purification of acetylsalicylic acid Results and Data treatment (A) Preparation of aspirin i) Details about the reactants Reaction of the acetylation of salicylic acid is following From the balanced reaction above‚ it can be seen that the stoichiometry between salicylic acid and acetic anhydride is 1: 1. In this experiment‚ 21.7mmol of salicylic acid was used to react 6.0mL of acetic anhydride and salicylic acid was limiting reagent. The expected amount of salicylic
Premium Carboxylic acid Aspirin
SOLVENT EXTRACTION Solvent extraction‚ also known as liquid extraction and partitioning‚ is a method to separate compounds based on their relative solubility in two different immiscible liquid‚ usually water and organic solvent. It is an extraction from one liquid phase to another liquid phrase. Liquid extraction is a basic technique in chemical laboratories‚ where it is performed using a separator funnel. This type of process is commonly performed after a chemical reaction as part of the work-up
Premium Acetic acid Solubility Solvent
ICSE X | CHEMISTRY Board Paper – 2015 ICSE Board Class X Chemistry Board Paper – 2015 Time: 2 hrs Max. Marks: 80 Answers to this Paper must be written on the paper provided separately. You will not be allowed 10 write during the first 15 minutes. This time is to be spent in reading the Question Paper. The time given at the head of this paper is the time allowed for writing the answers. Section I is compulsory. Attempt any four questions from section II. The intended marks for questions or parts
Premium Sulfuric acid Ammonia Oxygen