lassaig test for sulphur
Answers
The appearance of a deep violet color upon addition of a few drops of sodium nitroprusside to SFE indicates the presence of sulfur.
detection of sulfur: formation of violet color with nitroprusside
ii) Sulphur can also be detected by adding lead acetate to SFE, acidified with acetic acid. The formation of a black precipitate (PbS) indicates the presence of sulfur.
detection of sulfur with lead acetate
It is a general test for the detection of halogens, nitrogen and sulphur in an organic compound. ... This is done by fusing the organic compound with sodium metal. The ionic compounds formed during the fusion are extracted in aqueous solution and can be detected by simple chemical tests.
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