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What is Beistein test?Explain in detail.

What is Beistein test?Explain in detail.

Grade:12th Pass

1 Answers

Chetan Mandayam Nayakar
312 Points
11 years ago

The Beilstein test is a simple used in chemistry as a qualitative test for halides. It was developed by Friedrich Konrad Beilstein.[1]

A copper wire is cleaned and heated in a Bunsen burner flame to form a coating of copper(II) oxide. It is then dipped in the sample to be tested and once again heated in a flame. A positive test is indicated by a green flame caused by the formation of a copper halide. The test does not detect fluorine/fluorides.

This test is no longer frequently used. One reason why it is not widely used is that it is possible to generate the highly toxic chloro-dioxins if the test material is a Polychloroarene (page does not exist).[2]

An alternative wet test for halide is the sodium fusion test — this test converts organic material to inorganic salts include the sodium halide. Addition of silver nitrate solution causes any halides to precipitate as the respective silver halide.

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