[PDF] BTEC Assignment Brief PDF Authorised%20Assignment%20Brief%20for%20Learning%20Aim%20B%20Unit%204%20Laboratory%20Techniques%20and%20their%20Application.pdf

In this experiment the ester ethyl acetate (ethyl ethanoate) is prepared Add the reaction mixture to the separatory funnel (or test tube), stopper and mix the

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11 oct 2011 · ACETATE Industrial production of ethyl acetate is The separation of pure components is very tested this in esterification of acetic acid and

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20 mai 2019 · competitive threat to the ethyl acetate industry, from both a technical and acetate produced has a weight purity of 99 8 , meeting market specifications overall aim of this report is to determine if Greenyug will become a

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4 Be able to review the industrial applications of elements and compounds paracetamol, antifebrin; a liquid organic compound eg ethyl ethanoate, cyclohexene, Tests to determine purity: melting points; boiling points eg Siwoloboff's

[PDF] Chapter 2 Ethanol to Ethyl Ethanoate - Durham E-Theses

recovery of products by standard industrial techniques such as distillation The The reaction of 2-propanol over ZnO catalysts is regarded as a test reaction for ethyl ethanoate and $600/tonne for high purity (perfume grade) ethanol

[PDF] Comparison of the purity of samples of organic solvents by

alcohol, ethyl alcohol, ethyl acetate, and dioxane, in two or more grades of purity The absorption curves remove impurities from the solvents and to determine their ultra- part may have been due to a trace of benzene used in the industrial

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[PDF] BTEC Assignment Brief

BTEC Assignment Brief

Qualification

BTEC Level 3 National Foundation Diploma in Applied Science

BTEC Level 3 National Diploma in Applied Science

BTEC Level 3 National Extended Diploma in Applied Science

Unit number and title

Unit 4: Laboratory Techniques and their Application

Learning aim(s) (For NQF

only) B: Explore the manufacturing techniques and testing methods for an organic liquid

Assignment title Making a nail varnish remover

Assessor

Issue date

Hand in deadline

Vocational Scenario or

Context

You are a lab technician working in the research and development department of a cosmetics company. One of the products made by the company is nail polish remover.

The nail polish remover contains ethyl ethanoate.

You are investigating how to produce and test the purity of ethyl ethanoate so that the company can make it efficiently. You will produce a sample of ethyl ethanoate and test its purity. You will have to compare your laboratory technique with the industrial process used by the cosmetics company to manufacture ethyl ethanoate on a large scale.

Task 1

Prepare a sample of ethyl ethanoate and test its purity, demonstrating skilful application of the techniques you use (ie reflux and distillation using QuickfitTM apparatus, addition of chemicals to purify the ethyl ethanoate and testing its purity by measuring its boiling point and infrared spectrum and comparing with reference information). Write a report detailing your production and testing of ethyl ethanoate in the laboratory. The report must: Explain the scientific principles behind your practical work techniques Give detailed conclusions from your practical work Identify factors that affect the yield and purity of ethyl ethanoate in your laboratory preparation and analyse how significant these factors are Research and describe the industrial manufacture and testing of ethyl ethanoate, including raw materials, equipment and scale of production 2

BTEC Assignment Brief v1.0

BTEC Internal Assessment QDAM January 2015

Compare the laboratory and industrial manufacture

and testing of ethyl ethanoate, explaining principles, similarities and differences in the equipment and techniques used Analyse how relevant the factors you have identified as affecting yield and purity are in the industrial manufacture of ethyl ethanoate

Analyse whether boiling point measurement and

infrared spectroscopy are effective ways to assess purity of a liquid, and draw a conclusion on whether other methods used industrially, such as chromatography, are more reliable.

Checklist of evidence

required A report on the practical work and the detailed conclusions from this, including the analysis of factors affecting yield and purity, and research on industrial manufacture and testing An observation report by the teacher of making and testing the liquid safely.

All information sources should be referenced.

Criteria covered by this task:

Unit/Criteria

reference To achieve the criteria you must show that you are able to: B.D2 Analyse the factors affecting the yield and purity of an organic liquid in the laboratory and their relevance to its industrial manufacture. B.M2 Demonstrate skilful application of techniques in preparing and testing the purity of an organic liquid and draw detailed conclusions. B.M3 Compare the laboratory and industrial manufacture and testing of an organic liquid. B.P3 Prepare and test the purity of an organic liquid and draw conclusions. B.P4 Describe the industrial manufacture and testing of an organic liquid.

Other assessment

materials attached to this Assignment Briefquotesdbs_dbs7.pdfusesText_5

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