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UNIT 4 C Explore manufacturing techniques and testing methods for an organic solid.
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distinction level assignment C for UNIT4 in BTEC science
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Qualification- Pearson BTEC Level 3National certificate in Applied Science
Unit 4- laboratory techniques and their application
C: Explore manufacturing techniques and testing methods for an organic solid.
(introduction)
What is aspirin and what are its uses?
Aspirin, an acetylated salicylate (acetylsalicylic acid), is classified among the
nonsteroidal anti-inflammatory drugs (NSAIDs). These agents reduce signs and
symptoms of inflammation and exhibit a large range of pharmacological activities such
as analgesic, antipyretic and antiplatelet properties. It is commonly used as an everyday
painkiller for headaches, muscle aches, toothache and period pain. It can also be used
against colds, flues etc. to bring the high body temperature down.
Hazard name hazard Hazard information
Oil of wintergreen (part 1) Can cause serious eye damage. Wear goggles, gloves and mask to prevent
Harmful if swallowed, suspected of any of the hazards. Stay on high alert when
damaging an unborn child, can using this chemical. Keep away from fire. Le
cause irritation if in contact with the teacher know if anything happens.
skin, can also cause respiratory
damage. Also flammable
2.0 mol dm-3 NaOH (part 1) Can cause severe skin burns, eye Wear goggles, gloves and mask to prevent
damage. Can cause coughing if any of the hazards. Stay on high alert when
inhaled using this chemical. Let the teacher know if
anything happens.
2.00 mol dm-3 HCl (part 1) Can cause severe skin burns, eye Wear goggles, gloves and mask to prevent
damage, inflammation in the any of the hazards. Stay on high alert when
respiratory system. Corrosive and using this chemical. Let the teacher know if
irritating substance. anything happens.
Ethanoic anhydride Highly corrosive. Can cause burns Wear goggles, gloves and mask to prevent
and irritation in skin and can cause any of the hazards. Stay on high alert when
possible eye damage. Flammable using this chemical. Keep away from fire. Le
liquid. the teacher know if anything happens.
Concentrated H2SO4 Can lead to blindness, irritation Wear goggles, gloves and mask to prevent
and burns skin and eyes. If inhaled any of the hazards. Stay on high alert when
can cause build up of fluid in lungs. using this chemical. Let the teacher know if
Acid oxidises other things but does anything happens.
not burn itself
Concentrated ethanoic acid Inhaling will make your nose Wear goggles, gloves and mask to prevent
irritated, your lungs hurt, and it will any of the hazards. Stay on high alert when
be difficult to breath corrosive to using this chemical. Keep away from fire. Le
skin and eyes. Highly flammable the teacher know if anything happens.
, ethanol Highly flammable liquid and vapour Wear goggles, gloves and mask to prevent
harmful if swallowed and can any of the hazards. Stay on high alert when
damage organs, harmful if inhaled using this chemical.Let the teacher know if
anything happens.
Iodine crystals Harmful if in contact with skin. Wear goggles, gloves and mask to prevent
Harmful if inhaled and is toxic for any of the hazards. Stay on high alert when
aquatic life. using this chemical. Let the teacher know if
anything happens.
Salicylic acid Harmful if swallowed. Harmful if in Wear goggles, gloves and mask to prevent
contact with skin, and can do any of the hazards. Stay on high alert when
serious damage to eye using this chemical. Let the teacher know if
anything happens.
Aspirin chromatography solvent Highly flammable, can cause Wear goggles, gloves and mask to prevent
serious irritation if in contact with any of the hazards. Stay on high alert when
eyes, can be fatal if swallowed or using this chemical. Keep away from fire. Le
inhaled, may cause drowsiness or the teacher know if anything happens.
dizziness, can cause dryness in
skin if in repeated exposure.
Step by step method of making aspirin.
Part 1:
Equipment needed to carry out part 1:
1. Eye protection
2. A balance accurate to two decimal places
3. Measuring cylinder (10cm3)
4. Measuring cylinder (50cm3)
5. Quick fit apparatus
a. Pear shaped flask (50cm3)
b. Liebig condenser and tubing
c. retort stand, boss and clamp
6. Anti-bumping granules
7. Water bath
8. Beaker (100cm3)
9. Larger beaker to contain ice for ice bath to cool the mixture
10. Wash bottle with distilled/ deionized water
11. Dropping pipette
12. Stirring rod
13. Apparatus for filtration under reduced pressure
14. Watch Glass
15. Sample tube and lid
16. Glass marker pen
Procedure
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