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[Chemical Knowledge]：Understand the principle of blade azure indicator to protect your life safety!

Read： 917 Time：20months ago Source：Transform the World with Simplicity

Razurin indicator is a kind of chemical reagent, which can detect oxygen content and is widely used in industry, medical and other fields. Its principle is based on chemical reactions, let's take a closer look. The

resazurin indicator principle is based on the complexation of oxygen with ferric chloride (FeCl3). When the oxygen content is low, FeCl3 will form a blue six-coordinated Fe(H2O)63 + complex with water. When the oxygen content increases, the oxygen will react with FeCl3 to form a red six-coordinated Fe(O2)H2O3 + complex. It can be seen that the principle of the resazurin indicator is realized by the reaction of oxygen and FeCl3.

blade azure indicator can be used to detect the oxygen content of less than 21% of the air, its color will change with the change of oxygen content. When the oxygen content is less than 10%, its color becomes dark blue; when the oxygen content is less than 5%, its color becomes dark purple; when the oxygen content is less than 2%, its color becomes brownish black. Therefore, it can be used as a simple and easy-to-use detection tool to determine whether the oxygen content in certain environments meets safety standards.

In addition to the detection of oxygen content, the resazurin indicator can also be used to detect the dissolved oxygen content in water. In water, its principle is based on the transfer of gaseous oxygen into the water. When the dissolved oxygen content in the water is low, its color is green, and when the oxygen content increases, the color will gradually turn red. Therefore, the resazurin indicator also plays an important role in water quality detection.

blade azure indicator is widely used in production, medical treatment, environmental protection and other fields because of its simple, easy to use and high reliability. Understanding its principles helps us better understand its role and protect our lives.

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