Shanxian Chemical
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Titration Hydrogen Peroxide
On the Titration of Hydrogen Peroxide
The ancient skillful person, who knows the little things, seeks the truth in the changes of things. In the matter of titrating hydrogen peroxide today, it is also necessary to be rigorous.
For titration, use a liquid of known concentration to measure an unknown amount. In the titration of hydrogen peroxide, it is the first thing to choose an appropriate reagent to ensure the accuracy of its reaction.
Select a titrant when reviewing its properties in reaction with hydrogen peroxide. Take potassium permanganate as an example. When it encounters hydrogen peroxide, it undergoes a redox change. The color of potassium permanganate can be used as an indication of the end point of the reaction. At the beginning, hydrogen peroxide is mixed with potassium permanganate, and the color of the solution gradually changes. When it is just right, the color change is constant, which is the image of the end point.
During the operation, the method should be stable and sensitive. Measure the liquid of hydrogen peroxide with precision to the millimeter. When injecting the titrant, it is slow and even, and the eye is not instantaneous. Watch the change of the solution. Every drop falls, it will lead to changes, and there is no rush.
The calculation result is based on the proportion of the reaction, and the method of mathematics is deduced. A slight difference can lead to a thousand miles of error. Therefore, repeated calculations are made to ensure accuracy.
This titration method, although it is a technique, is practical and rational. Only when you are proficient in operation and clear in principle can you measure hydrogen peroxide and obtain accurate results. On the road of learning chemistry, the accumulation of drips is essential, and it is necessary to be rigorous. To explore the mystery and obtain the truth of science.
The ancient skillful person, who knows the little things, seeks the truth in the changes of things. In the matter of titrating hydrogen peroxide today, it is also necessary to be rigorous.
For titration, use a liquid of known concentration to measure an unknown amount. In the titration of hydrogen peroxide, it is the first thing to choose an appropriate reagent to ensure the accuracy of its reaction.
Select a titrant when reviewing its properties in reaction with hydrogen peroxide. Take potassium permanganate as an example. When it encounters hydrogen peroxide, it undergoes a redox change. The color of potassium permanganate can be used as an indication of the end point of the reaction. At the beginning, hydrogen peroxide is mixed with potassium permanganate, and the color of the solution gradually changes. When it is just right, the color change is constant, which is the image of the end point.
During the operation, the method should be stable and sensitive. Measure the liquid of hydrogen peroxide with precision to the millimeter. When injecting the titrant, it is slow and even, and the eye is not instantaneous. Watch the change of the solution. Every drop falls, it will lead to changes, and there is no rush.
The calculation result is based on the proportion of the reaction, and the method of mathematics is deduced. A slight difference can lead to a thousand miles of error. Therefore, repeated calculations are made to ensure accuracy.
This titration method, although it is a technique, is practical and rational. Only when you are proficient in operation and clear in principle can you measure hydrogen peroxide and obtain accurate results. On the road of learning chemistry, the accumulation of drips is essential, and it is necessary to be rigorous. To explore the mystery and obtain the truth of science.
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