Preview

Melting Point Determination

Better Essays
Open Document
Open Document
1858 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Melting Point Determination
| |Formal Report 1 | |
| |Experiment Number 3 | |
| |Chem201L | |

Determination of an Unknown Compound using Mixed Melting Point Method

Winnie Adrian Ibanez, Jerome Allan Japitana, and Dante Jimenez III
Group no. 7, 2Chem

a Department of Chemistry, College of Science, University of Santo Tomas,
España, Manila, 1015, Philippines

|ARTICLE INFO |ABSTRACT |
|Article history: |Keywords: |An unknown compound was determined by means of observing the melting point range of the given solid. |
|Date: July 4, 2013 |Melting point |Different organic compound with their melting point range was listed to confirm the identity of the |
| |Capillary tube |unknown. Each researcher paired to another student with melting point within the range of 4oC and |
|*Corresponding author: |Error range |mixed their compound thoroughly to confirm the identity of their unknown. Based on the melting point |
|E-mail address: |Trans-cinnamic acid |range table, the unknown compound was determined to be a trans-cinnamic acid. |
|third_jimenez@yahoo.com | | |
Introduction:
Identifying an unknown compound can be a difficult task. In identifying a compound, researchers often measure several



References: Aldrich, S. (n.d). Retrieved July14, 2013, from LLC, Sigma- Aldrich Co, http://www.sigmaaldrich.com/catalog/ Dean, J., Jones, M., Holmes, D., & Reed, R. (2011). Practical Skills in Chemistry (11th ed.) Gilbert, J. & Martin S. (2010). Experimental Organic Chemistry: A Miniscale and Microscale Approach: A Miniscale and Molavi, S., & Barron, A. (2012, May 29). Melting Point Analysis

You May Also Find These Documents Helpful

  • Satisfactory Essays

    Exp 5 Soo Jin Park 73426

    • 326 Words
    • 2 Pages

    The purpose of this experiment is to determine the boiling point of a liquid and the melting point of a solid. It is useful to know the melting point and boiling point of a substance to identify whether it is pure or not. I could learn how to determine the melting and boiling point of a substance through its temperature when the acetamide turned into a liquid and bubbles emerged from the capillary tube in the Isopropyl alcohol.…

    • 326 Words
    • 2 Pages
    Satisfactory Essays
  • Better Essays

    The identity of the unknown solid white compound is determined and verified through a series of tests which uncover physical and chemical properties necessary for identification. A new sample of the same compound is then created to further prove the accuracy of the identification. The compound must be identified in order to be used. For example, KCl is used in medicine, scientific applications, and food processing. It also tastes a lot like sodium chloride, and is the main ingredient in dietary salt substitutes.1 The other possible compounds substance 634p could be have very different properties and uses though they look similar. Almost all…

    • 1844 Words
    • 8 Pages
    Better Essays
  • Powerful Essays

    In this laboratory assignment, the spectroscopy data and molecular formula were given for 3 unknowns. An effort was made to conclusively identify these unknown samples using only the spectroscopy data, specifically 1H-NMR, 13C-NMR, and IR spectroscopy. Although mass spectrometry was given for the samples as well, its use was suggested only for confirmation, not identification, of the unknowns. Mass spectrometry was not included in the identification analysis of the compounds, however was used for confirmation of unknown #46. The spectroscopic data was analyzed using standard techniques, and the identity of the unknown samples were…

    • 2096 Words
    • 9 Pages
    Powerful Essays
  • Good Essays

    Keep a small amount of the solid to determine its melting point. This is so we can use the melting point in our results afterwards. Make sure there is enough solid left in case the melting procedure goes wrong.…

    • 1079 Words
    • 5 Pages
    Good Essays
  • Satisfactory Essays

    The purpose of this experiment is to determine the components of an unknown drug and identify it as one of six (6) commercial drugs by using thin-layer chromatography.…

    • 356 Words
    • 2 Pages
    Satisfactory Essays
  • Better Essays

    Panacetin Essay

    • 1093 Words
    • 5 Pages

    In each trial each separate component was placed in its own capillary tube, and then a 3rd capillary tube contained a 50/50 mixture of both ingredients. The results of their melting points occurred as is what the table says below.…

    • 1093 Words
    • 5 Pages
    Better Essays
  • Powerful Essays

    This experiment was focused on the cooperative identification of organic compound by its chemical properties such as: slow melting point, mixed melting point, Rf values in TLC experiment, IR spectrum analysis, and H NMR spectra. Such data can provide the the identity of functional groups and the identity of the compound itself.…

    • 862 Words
    • 4 Pages
    Powerful Essays
  • Better Essays

    _____________________________________________ Project 3: Identifying the Unknown White Compound by Testing Physical and Chemical Properties _____________________________________________ Michigan State University Chemistry Lab 161 Section 27 19 October 2017 Friday 11:00-1:50 Introduction For this experiment, there was an unknown white compound that had to be identified. By testing this compound for different properties it made making an educated guess easier to determine what this compound was so it could be disposed of properly. To attempt to discover our unknown compound, the tests that will be performed will be: solubility test, pH test, physical property test, two precipitate tests, and temperature test with solubility.…

    • 1640 Words
    • 7 Pages
    Better Essays
  • Satisfactory Essays

    Diels Alder Lab Results

    • 250 Words
    • 1 Page

    ,2.beta. ,5. alpha.)‐ Retention Structural Time Formula (Mins) 9.312 C15H24 9.312 C11H14O CAS Number 87‐44‐5 129‐130 N/A 32763‐64‐7 251.775 N/A 0.901 1.178 7.407 7.407 C9H16 C9H16O 4551‐51‐3 160.999 N/A 900193‐87‐ 209.252 N/A 0.883 1.041 5.666 C12H23O2Cl 6974‐05‐6 0.972 5.666 C16H25O2F7 900215‐97‐ 296.979 N/A CAS Number Boiling Point Melting Point 274.482 35‐36 Boiling Point Density (g/mL) 1.141 Retention Structural Time Formula (mins) 3.870 C10H16 Melting Density Point (g/mL) 3760‐14‐3 74 N/A 0.867 3.870 5.506 C10H16 C8H16 3760‐14‐3 692‐96‐6 176‐177…

    • 250 Words
    • 1 Page
    Satisfactory Essays
  • Powerful Essays

    Choose the compound below that should have the highest melting point according to the ionic bonding model.…

    • 1021 Words
    • 8 Pages
    Powerful Essays
  • Satisfactory Essays

    n-Amyl Alcohol or “1-Pentanol” is an alcohol with five carbon atoms. It is a colorless liquid with an unpleasant aroma.…

    • 763 Words
    • 4 Pages
    Satisfactory Essays
  • Satisfactory Essays

    This find out what the six unknown substances are I test each substance by using six different methods. After making my hypothesis, the six methods I used to see if I was correct where color, texture, shape, smell, soluble, and density. My results show that I was correct on three substances and unsure on the other three.…

    • 428 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Biopol Essay Example

    • 516 Words
    • 3 Pages

    Biopol, commonly known as PHA is a member of a family of environmentally friendly performance plastics made from renewable sources. They are biodegradable and can be processed into molded goods which are useful in numerous applications for example water resistant coatings. If we continue to use petroleum to make polymers for plastic etc, we will eventually run out therefore Biopol has been introduced as a replacement polymer for petroleum. Biopol is made from a biological substance which is a microorganism known as Alcaligenes eutrophus.…

    • 516 Words
    • 3 Pages
    Satisfactory Essays
  • Good Essays

    Alum Lab Conclusion

    • 549 Words
    • 3 Pages

    The purpose of this laboratory was to use two different techniques to attempt to identify the melting point and the mole ratio of hydrated water to anhydrous aluminum, potassium, and sulfate of AlKSO4. The hypotheses were: if the alum was put in a capillary tube the melting point of alum will be able to be determined; and the water of hydration in alum crystals will be possible to determine if the alum is heated with a Bunsen burner.…

    • 549 Words
    • 3 Pages
    Good Essays
  • Good Essays

    In this experiment, we will use melting point, boiling point, and solubility to identify certain solids and liquids. First, we will melt benzoic acid, benzoin, and an unknown substance. I believe the benzoin will have a small range melting point because it is a pure substance.…

    • 802 Words
    • 3 Pages
    Good Essays