Write all the reactions involved in lassaigne test for detection of nitrogen
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● Lassaigne's test -
- aka sodium fusion test.
- It is used in elemental analysis for the qualitative determination of the presence of foreign elements in organic compound.
- This can be used to detect halogens, nitrogen, and sulphur, in an organic compound.
● Lassaigne's test for nitrogen -
- Lassaigne test for detection on nitrogen gives blue colored iron complex.
6NaCN + FeSO4 ---> Na4[Fe(CN)6] + Na2SO4
Na4[Fe(CN)6] + 2Fe2(SO4)3 ---> Fe4[Fe(CN)6]3 + Na2SO4
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