Test for Halogen

There are ways to test for halogens such as chlorine, bromine and iodine. One such procedure is the Beilstein Test. This test helps detect the presence of halogens in plastic.


This test works on the principle that a material containing any bound halogens, or halogens in ionic form, will react with copper wire. When heated in a flame, a wire that contains halogens will produce a bright, green flame.


Take a hot copper wire and thrust it into the plastic sample so that the plastic melts and some of it sticks on the wire. Then put the wire with the bits of plastic on it on the hot flame.


If the test produces a bright green lasting flame, the plastic contains halogens. If there are impurities, such as fingerprints, on the plastic, this could produce a mild, green flame that will disappear quickly.

Related Articles

How to Test for Gold Ore
Test Your Knowledge on Middle School Science
Experiments With Salt and Vinegar
How to Do Chemical Test for Gold
Simple Science Fair Projects for 6th Graders
How to Use Bleach on Gold Ore to Remove Gold
How to Identify a Metal
How to Make Electricity for a Science Fair Project...
Recondition a NiCAD Battery
Methods of Plating Stainless Steel
What Causes Copper to Tarnish?
How to Build a 3-Dimensional Model of a Copper Atom
How to Test Copper Purity
Simple and Easy Science Projects for an 11-year-old
Three Ways to Magnetize a Nail
Penny Science Fair Project Ideas
Signs of a Chemical Reaction With Steel Wool and Peroxide
How to Make a Pure Sample of Potassium
Potassium Permanganate Experiments
Projects on Chemical Bonding