Difference between revisions of "Flame Test"
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#Hold the end of the [[Inoculation Loop]] in a roaring blue [[Bunsen Burner]] flame. | #Hold the end of the [[Inoculation Loop]] in a roaring blue [[Bunsen Burner]] flame. | ||
#Observe and record the colour of the flame. | #Observe and record the colour of the flame. | ||
| + | |||
| + | ===References=== | ||
| + | ====AQA==== | ||
| + | |||
| + | :[https://www.amazon.co.uk/gp/product/1471851346/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851346&linkCode=as2&tag=nrjc-21&linkId=3ac654f4b0da781c49c855a1af4c92ea ''Flame tests, page 209, GCSE Chemistry, Hodder, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945962/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945962&linkCode=as2&tag=nrjc-21&linkId=476bb5c8d1dfb5c08ac81b6d4d1c98d8 ''Flame tests, page 258, GCSE Chemistry, CGP, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945571/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945571&linkCode=as2&tag=nrjc-21&linkId=9e29fad914244909903e5e93f8a01d127 ''Flame tests, page 89, GCSE Chemistry; The Revision Guide, CGP, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Flame tests, pages 186-187, GCSE Chemistry; Third Edition, Oxford University Press, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158762&linkCode=as2&tag=nrjc-21&linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Flame tests, pages 263, 274-5, 284, GCSE Chemistry; Student Book, Collins, AQA ''] | ||
Revision as of 16:12, 15 November 2019
Key Stage 4
Meaning
Flame Tests are an experiment which can be used to identify the metal elements in a metal compound.
About Flame Tests
- When a metal compound is heated by a flame it causes the electrons in the metal to gain energy and move to a higher Electron Orbital. When they electrons fall back down to their lower Electron Orbital some light is given off. Each metal produces different colours of light.
| Metal Ion | Flame Colour |
| Lithium | Red |
| Sodium | Orange |
| Potassium | Lilac (Purple) |
| Calcium | Orange-red |
| Barium | Brown-green |
| Copper | Green-blue |
| Lead | Blue |
Method
- Dip the end of an Inoculation Loop into concentrated Hydrochloric Acid.
- Place the end of the Inoculation Loop into the powdered metal compound.
- Hold the end of the Inoculation Loop in a roaring blue Bunsen Burner flame.
- Observe and record the colour of the flame.
References
AQA
- Flame tests, page 209, GCSE Chemistry, Hodder, AQA
- Flame tests, page 258, GCSE Chemistry, CGP, AQA
- Flame tests, page 89, GCSE Chemistry; The Revision Guide, CGP, AQA
- Flame tests, pages 186-187, GCSE Chemistry; Third Edition, Oxford University Press, AQA
- Flame tests, pages 263, 274-5, 284, GCSE Chemistry; Student Book, Collins, AQA