i

Organic Chemistry

Lassaign’s Test

There are many impurities in organic compound. The detection of other elements in an organic compound is important in qualitative analysis and purity test. There are different tests for the detection of foreign elements.

Lassaign’s test:  The method for the detection of a foreign element like sulphur, nitrogen, and halogens in an organic compound is called lassaign’s test. In this test, sodium plays an important as the inorganic compounds form fusible mass with sodium. The preparation of sodium extract is treated with other reagents.