Chemistry
11. Nucleophilic substitution reaction
- 00:42 What is ‘bumping’? How do the anti-bumping granules work?
- 00:59 What happens during refluxing?
- 01:21 What is the purpose of the gauze?
- 01:30 Why should the joints not be slack?
- 01:35 What are the advantages of a heating-mantle compared to a Bunsen burner?
- 01:45 What is the purpose of the thermometer?
- 01:56 At what temperature does the product distil?
- 02:11 How could you test for the product?
100 cm3 round-bottomed flask
100 cm3 beaker
100 cm3 conical flask
25 cm3 measuring cylinder
reflux condenser
thermometer
specimen tube
labels/felt-pen (permanent ink)
anti-bumping granules
heating-mantle / bunsen burner with water-bath
clamp stand
| Hazard | Risk | Control measure |
|---|---|---|
0.1mol dm-3 NaOH solution – no hazard. |
Contact with eyes and skin. |
Eye: flood with tap water (10min). Skin: drench with water |
1-bromobutane – flammable, serious health hazard, hazardous to the aquatic environment. |
Ignite when close to Bunsen burner. Contact with eyes and skin. |
Eye: flood with tap water (10 min) |