Preview

Lab 7 Extraction Of Benzoic Acid

Good Essays
Open Document
Open Document
1562 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Lab 7 Extraction Of Benzoic Acid
SEGi University
Extraction of Benzoic Acid by Balvinder Singh
(SCM 015 677)

Lab Partners:
1) Surrean Rao
2) Wong Kai Jun
3) Kanaga Luckshimi
4) Sasiskala Regal

ECE2332 Chemical Engineering Practices
Submitted: 1st October 2013

Supervisor:
Mr Ayman William

1.0 Abstract /summary
The purpose of this experiment to carry out in the lab is because to determined the capability to water droplet to carry out the liquid-liquid extraction. The studies is to determine the average time travel for each of the 10 out of 50 water droplets from top of the burette and to the bottom, the average volume of each of the water droplet and the volume of NaOH needed to neutralise the benzoic acid in aqueous solution. From the volume collected for 50 droplets surface area and radius is calculated for a droplet. The uses of the surfaces area and volume help to determined the concentration of benzoic acid in kerosene, mole of benzoic acid transferred, molar flux and mass transfer coefficient.

2.0 Theoretical background
The background of these studies is to estimate and understand the extraction of benzoic acid in kerosene into carrier medium water. The water droplets are added top of the burette containing kerosene with saturated benzoic acid. Each of the water droplet added is to passes through the kerosene the surface area of the droplet is play an important role for benzoic extraction. The molar flux of benzoic acid through the interface, NB (mol/m2.s) is given by: NB = KC (C*B – CB) where C*B is the concentration of benzoic acid in kerosene at saturation, CB is the concentration of benzoic acid in the aqueous phase and KC is the mass transfer coefficient. In order to determine KC the values of NB, C*B and CB must first be known. this studies will help us to defined how the differences in mass transfer surface area will affect the molar flux and mass transfer coefficient.
The burette was filled with kerosene saturated with


References: 1. Factor effect the extraction of benzoic acid with water droplet surface area (viewed on30/9/2013 4:09:37 PM) http://www.wikipedia.com/doc/51635023/Extraction-of-Benzoic-Acid/factor
Continue Reading
View Writing Issues

You May Also Find These Documents Helpful

  • Better Essays

    Isopentyl Acetate Synthesis Lab Report
    • 1537 Words
    • 7 Pages

    Isopentyl Acetate Synthesis Lab Report

    Approximately ten minutes into the reflux period a condensation reflux ring was visible near the top of the round-bottom flask and then progressed up the approximately one-third of the condenser column length approximately twenty minutes into the reflux. Thirty minutes into the reflux, the mixture changed to a dark purple color while it bubbled and boiled. This color remained through the extractions but was left in the boiling flask during distillation. Reflux continued for a total of 60 minutes after the reflux ring formed and took approximately ten minutes to cool down to room temperature. Then the room temperature mixture was prepared for extraction with 10mL of water but discovered to be still very acidic after one wash. To reach a neutral pH, it took three washes with Sodium Bicarbonate (NaHCO3) to remove any excess acetic acid and catalytic sulfuric acid. During distillation, the first drop was observed at 135 C and stopped at approximately 139 C when the distilling flask approached dryness. The final product was clear and colorless with a strong scent of bananas. The mass of the product was a 4.42g…

    • 1537 Words
    • 7 Pages
    Better Essays
    Read More
  • Better Essays

    orgo lab
    • 993 Words
    • 4 Pages

    orgo lab

    After recrystallization of the benzoic acid, the starting and ending masses as well as the melting point ranges were determined. This experiment was conducted twice, following the same steps and guidelines.…

    • 993 Words
    • 4 Pages
    Better Essays
    Read More
  • Powerful Essays

    Nitration Of Methyl Benzoate Lab Report
    • 1199 Words
    • 5 Pages

    Nitration Of Methyl Benzoate Lab Report

    In this experiment, methyl-m-nitrobenzoate, followed the electrophilic addition of aromatic ring, would be formed from the starting material methyl benzoate and nitric acid, under the catalysis of concentrated sulfuric acid. The reaction between nitric acid and sulfuric acid resulted in the formation of nitronium ion NO2+. It then acted as strong electrophile that nitrated the benzene ring. After that, vacuum filtration and recrystallization were methods used to obtain the final product with minimal impurities. The mass of product…

    • 1199 Words
    • 5 Pages
    Powerful Essays
    Read More
  • Better Essays

    Separation of a Mixture of Solids
    • 868 Words
    • 4 Pages

    Separation of a Mixture of Solids

    Purpose: The purpose of this lab is to learn separation techniques using individual physical properties of each substance in the mixture.…

    • 868 Words
    • 4 Pages
    Better Essays
    Read More
  • Good Essays

    Indirect Measurment of Volume
    • 358 Words
    • 2 Pages

    Indirect Measurment of Volume

    A pipette was used to place consistent drops of liquid into a 10 ml graduated cylinder until it was filled to the 10 ml mark. The level was measured at the meniscus, bottom of the curve, of the liquid and the amount of drops was recorded. Dividing the volume (10 ml) by the amount of drops yields the volume of a single drop. This procedure was completed three times with three separate liquids; water, water with detergent and rubbing alcohol. Data from the three trials is listed below. The accuracy of the procedure is dependent on consistent drops.…

    • 358 Words
    • 2 Pages
    Good Essays
    Read More
  • Good Essays

    Laboratory Techniques and Measurements
    • 1081 Words
    • 5 Pages

    Laboratory Techniques and Measurements

    _20.4_g Net mass of the alcohol __3.5_g Density of the alcohol __0.7__ g/mL Part C Mass of graduated cylinder and salt solution ____g Net mass of the salt solution ____g Density of the salt solution ____ g/mL Part D Volume of half filled graduated cylinder __8.0__mL Volume of half filled graduated cylinder and metal bolt _9.1__mL Volume of the metal bolt _1.1_mL Mass of the metal bolt __7.2__g Density of the metal bolt __6.55__g/mL Part E Mass of half filled beaker __89.0__g Mass of water displaced by metal bolt __90.1__g Volume of the metal bolt __1.1__cc Density of the metal bolt __6.55__g/cc Mass of half filled beaker __89.0__g Mass of water displaced by magnet __89.8__g…

    • 1081 Words
    • 5 Pages
    Good Essays
    Read More
  • Good Essays

    Separation of a Mixture of Solids
    • 572 Words
    • 3 Pages

    Separation of a Mixture of Solids

    While the water was boiling with the table salt, sand, and benzoic acid, the water got thick. It was difficult to separate the solids because they would get stuck to the bottom of the Styrofoam cup. In order to separate the iron filings a magnet was used. The solution first needed to be spread out on a piece of paper. As the magnet was ran over the solution, the iron filings were picked up. It took several tries to get all of the iron picked up. To separate the sand, the burner and distilled water was used. As it boiled, it had to be stirred to make sure it was completely dissolved. Having done this twice ensures that the salt and the benzoic acid are completely removed from the sand. An ice bed was necessary to observe the benzoic acid crystallizing. The ice bed allowed the burning benzoic acid to cool down and change appearance and texture. The sand had to be over low heat to be completely dry. No sand splattered which made it effective for the data. To separate the benzoic acid, filtration was used. The mass of the filter paper was 1.1 grams. The ice bath was…

    • 572 Words
    • 3 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Unknown liquid
    • 264 Words
    • 2 Pages

    Unknown liquid

    III. Procedure: 1.We massed an empty 10mL graduated cylinder to the nearest .01g. 2.Then, we filled the graduated cylinder with 4.0-5.0 mL of distilled water, 3.massed it to the nearest 0.1 ml and 4. recorded the data. Then to determine the density of the unknown liquid; we repeated the steps.…

    • 264 Words
    • 2 Pages
    Satisfactory Essays
    Read More
  • Good Essays

    Organic Chem: Distillation Lab
    • 274 Words
    • 2 Pages

    Organic Chem: Distillation Lab

    The Simple and Fractional distillation experiment was divided into two parts. We split up the procedure in this experiment. My group did the simple distillation and we received the Fractional distillation from another group in class. In this experiment, we examined the effectiveness of fractional and simple distillation to determine which is more successful at extracting a pure sample. This experiment was very successful. We are able to determine the success of the experiment but calculating refractive index of both types of distillation.…

    • 274 Words
    • 2 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    lab3c chem11
    • 314 Words
    • 2 Pages

    lab3c chem11

    The first objective of this lab is to make measurements of mass and volume for 3 different liquids. The second objective is to analyze the data by means of graphing technique. The last objective for this lab is to determine a mathematical relationship between mass and volume for each liquid.…

    • 314 Words
    • 2 Pages
    Satisfactory Essays
    Read More
  • Powerful Essays

    Argument Essay: The Gilded Age
    • 1635 Words
    • 7 Pages

    Argument Essay: The Gilded Age

    barrel of crude oil, 4 barrels of water must contaminated (Brecher). The extraction and refining…

    • 1635 Words
    • 7 Pages
    Powerful Essays
    Read More
  • Powerful Essays

    Diels Alder Experiment

    • 1208 Words
    • 5 Pages

    Diels Alder Experiment

    2 Perry, Robert H. Perry 's chemical engineers ' handbook. 8th ed. New York [etc.: McGraw-Hill, 1997. Print.…

    • 1208 Words
    • 5 Pages
    Powerful Essays
    Read More
  • Good Essays

    Steam Distillation
    • 614 Words
    • 3 Pages

    Steam Distillation

    The purpose of this experiment was to isolate the aromatic hydroxyl compound, eugenol from crushed cloves using steam distillation. After conducting the distillation, the expected two layers were not visible in the centrifuge tube. Subsequently, the extraction and evaporation did not produce the expected oil. This result is probably due to the collection of only water vapor during distillation.…

    • 614 Words
    • 3 Pages
    Good Essays
    Read More
  • Good Essays

    Diffusion of Hydrochloric Acid Into Different Sizes of Agar Blocks
    • 476 Words
    • 2 Pages

    Diffusion of Hydrochloric Acid Into Different Sizes of Agar Blocks

    Aim: Investigating the relationship between the diffusion and the surface area to volume ratio, with agar and hydrochloric acid.…

    • 476 Words
    • 2 Pages
    Good Essays
    Read More
  • Good Essays

    Bleaching of Crude Palm Oil
    • 495 Words
    • 2 Pages

    Bleaching of Crude Palm Oil

    Two boiling chips are added into the flat bottom flask and weighed. Then, hexane is poured into the flat bottom flask until it is half full. Teflon tape is applied on the bottom end of siphon and condenser before fitting the apparatus. This is to prevent the released of hexane gas during the experiment. The wrapped adsorbent is then placed inside the thimble before putting it over the soxhlet extractor for extraction. Vertical condenser is the connected on the upper under of the soxhlet extractor. Two water pipes are connected on the entrance and exit of the condenser for the purpose of cooling the condensate. The flow rate of water must be adjusted until a smooth flow is seen which adversely means no bubble is suspected over the condenser tube. Hexane is then heated up to the temperature of 200 °C for 6 hours or until all the oil has been extracted. After that, the slurry (oil+ hexane) is dried in the oven at 105 °C for an hour to…

    • 495 Words
    • 2 Pages
    Good Essays
    Read More

Related Topics