Shanxian Chemical
SUPPLEMENTS
How To Test Hydrogen Peroxide
Method of testing hydrogen peroxide
To test hydrogen peroxide, you must first clarify its properties. Hydrogen peroxide is oxidizing, unstable, and often decomposes easily.
One method is to take a clean test tube and pour a little liquid to be tested. Then pour a little manganese dioxide powder. If the liquid contains hydrogen peroxide, bubbles will escape quickly. This is because hydrogen peroxide meets manganese dioxide and catalyzes decomposition to produce oxygen. Wood strips with fire stars can be placed at the mouth of the test tube. If the wood strips reignite, it is confirmed that the liquid contains hydrogen peroxide. Oxygen-assisted combustion can make wood strips with Mars reignite.
Another method can take advantage of its oxidation. Take an appropriate amount of potassium iodide solution, drop a little into the liquid to be tested, and then drop a few drops of starch solution. If the solution turns blue, it means that there is hydrogen peroxide in the liquid. Cover hydrogen oxide to oxidize potassium iodide, produce iodine elemental substance, iodine turns blue when it encounters starch, this is a characteristic reaction, which can be tested by this.
The method of testing hydrogen peroxide, although simple, should be done with caution, according to the procedures, can be sure of the results.
To test hydrogen peroxide, you must first clarify its properties. Hydrogen peroxide is oxidizing, unstable, and often decomposes easily.
One method is to take a clean test tube and pour a little liquid to be tested. Then pour a little manganese dioxide powder. If the liquid contains hydrogen peroxide, bubbles will escape quickly. This is because hydrogen peroxide meets manganese dioxide and catalyzes decomposition to produce oxygen. Wood strips with fire stars can be placed at the mouth of the test tube. If the wood strips reignite, it is confirmed that the liquid contains hydrogen peroxide. Oxygen-assisted combustion can make wood strips with Mars reignite.
Another method can take advantage of its oxidation. Take an appropriate amount of potassium iodide solution, drop a little into the liquid to be tested, and then drop a few drops of starch solution. If the solution turns blue, it means that there is hydrogen peroxide in the liquid. Cover hydrogen oxide to oxidize potassium iodide, produce iodine elemental substance, iodine turns blue when it encounters starch, this is a characteristic reaction, which can be tested by this.
The method of testing hydrogen peroxide, although simple, should be done with caution, according to the procedures, can be sure of the results.
Scan to WhatsApp
