"Separating acid and neutral compounds by solvent extraction" Essays and Research Papers

Sort By:
Satisfactory Essays
Good Essays
Better Essays
Powerful Essays
Best Essays
Page 5 of 50 - About 500 Essays
  • Powerful Essays

    extraction of seaweed

    • 4637 Words
    • 16 Pages

    1.0 TITLE Extraction of Phenol and Flavanoid compound of the edible brown seaweed species (Eucheuma Cottonii). 2.0 INTRODUCTION 2.1 An overview of Seaweed Macro-algae or “seaweeds” are multicellular plants growing in salt or fresh water. They belong to the lower plants‚ meaning that they do not have roots‚ stems and leaves. Instead they are composed of a thallus (leaf-like) and sometimes a stem and a foot (holdfast). Some species have gas-filled structures to provide buoyancy. They are often

    Premium Antioxidant

    • 4637 Words
    • 16 Pages
    Powerful Essays
  • Powerful Essays

    heterogeneous mixture containing salt‚ sand‚ and benzoic acid can be separated using the separate components’ solubility properties (ability to dissolve in water). Because it is known that organic compounds (such as benzoic acid) are very soluble in organic solvents‚ a hexane: ethanol mixture was used to dissolve the acid. Also‚ because it is known that sodium chloride dissolves in water‚ water was used to dissolve the NaCl. Along with separating the components of a heterogeneous mixture‚ the percent

    Premium Solvent

    • 1011 Words
    • 5 Pages
    Powerful Essays
  • Good Essays

    Extraction

    • 507 Words
    • 3 Pages

    wet-chemical technique for separating organic compounds based on differences in boiling points. Upon heating a mixture of organic compounds‚ the more volatile compounds (those with the lowest boiling point) will vaporize first (i.e. be converted to gases)‚ leaving the higher-boiling compounds behind in the mixture. By isolating the vapor produced at different temperatures and condensing them (i.e.‚ converting gases to liquids)‚ you can effectively separate and purify compounds based on their boiling

    Premium Distillation Evaporation Gas

    • 507 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Title: Separating the components of “Panacetin” Name: Ip‚ Wing Chung (Vincent) Lab Partner: Ma‚ Siyin Date: 2/3/2013 Introduction: The purpose of this experiment is to investigate the composition of compounds in Panacetin. Generally‚ it is made up of sucrose‚ aspirin and an unknown component‚ either acetanilide or phenacetin. SinceBy using different techniques‚ such as filtration‚ extraction‚ and evaporation‚ those three components have been isolated out‚ which is based on varies solubility

    Premium Liquid Temperature Solid

    • 674 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Caffeine extraction

    • 2952 Words
    • 12 Pages

    Objective:     To extract caffeine from tea powder using polar - nonpolar solvent extraction technique. Theory:   The technique used to separate an organic compound from a mixture of compounds is called Extraction. Extraction process selectively dissolves one or more of the mixture compounds into a suitable solvent. The solution of these dissolved compounds is referred to as the Extract. Here the organic solvent dichloromethane is used to extract caffeine from an aqueous extract of tea leaves

    Premium Caffeine Solvent

    • 2952 Words
    • 12 Pages
    Powerful Essays
  • Good Essays

    Liquid-Liquid Extraction

    • 645 Words
    • 3 Pages

    Experiment 3 Liquid-Liquid Extraction Discussion The success of extracting each compound out of the solution can be seen in the IR graphs for each substance. For ethyl 4-aminobenzoate‚ the N-H‚ C=O and C-O are distinguishable in their proper wavenumber positions. The amino N-H stretch was found between 3224 cm-1 and 3423 cm-1. The C=O was found at 1681 cm-1 and the C-O was at 1280 cm-1. The IR for benzoic acid also displays its significant bonds‚ O-H and C=O. The O-H was between 2566 and

    Premium Solubility Chemistry

    • 645 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Separating The Components of “Panacetin” Observations Most natural products and many commercial preparations are mixtures containing a number of different substances. To obtain a pure compound from such a mixture‚ you must separate the desired compound from the other components of the mixture by taking advantage of differences in their physical and chemical properties. Acidic or basic substances are often converted to water-soluble salts‚ which can then be separated from the water-insoluble

    Premium Chemical substance Chemistry Hydrochloric acid

    • 510 Words
    • 3 Pages
    Good Essays
  • Better Essays

    of Organic Compounds by Acid-Base Extraction Techniques 5 A commonly used method of separating a mixture of organic compounds is known as liquid-liquid extraction. Most reactions of organic compounds require extraction at some stage of product purification. In this experiment you will use extraction techniques to separate a mixture of an organic acid‚ a base‚ and a neutral compound. Organic acids and bases can be separated from each other and from neutral compounds by extraction using aqueous

    Premium Acid Sodium hydroxide Solubility

    • 1589 Words
    • 7 Pages
    Better Essays
  • Good Essays

    Extraction Report

    • 377 Words
    • 2 Pages

    Extraction Report For experience 4c we were supposed to determine which one is the organic layer in three different tubes that has two layers. To determine which is aqueous (water) or organic‚ I used the technique of adding droplets of water to each tube. If the layer is water‚ then the drops of added water will dissolve in the aqueous layer and increase it’s volume. If the added water form droplets or a new layer‚ then it is the organic layer. Tube 1 (water and n-butyl chloride)‚ after adding

    Premium Water Liquid Sodium chloride

    • 377 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Chem 201 - Extraction

    • 1057 Words
    • 5 Pages

    Extraction (Ch # 07) Faraz Gohar Mr. Wayne Xie Chem 201 10/02/2012 Objectives : 1)To purify samples of organic compounds that are solids at room temperature. 2)To dissociate the impure sample in the minimum amount of an appropriate hot solvent Chemical Index : Naphthalene; mp 82 *C 1‚4-Dichlorobenzene; mp 56 *C 4-Chloroaniline; mp 68 - 71 *C; pKb 4.15 Ethyl 4-Aminobenzoate; mp 90 *C; pKb 4.92 Procedure :

    Premium Solvent Solubility Acetic acid

    • 1057 Words
    • 5 Pages
    Good Essays
Page 1 2 3 4 5 6 7 8 9 50