Zhengda teaches you the precautions for cleaning activated alumina containers

The main chemical properties of activated alumina: the removal of dirt from the glass by physical and chemical methods with various washing liquids. The main chemical properties of activated alumina spheres are the physical and chemical removal of contaminants from the glass by various washes. During the test, if there is a hiding point of activated alumina in the corner of the container that is difficult to clean, it must not be treated with water, because a relatively large amount of activated alumina encounters water, causing a rapid increase in local temperature, which causes the container to burst. . The activated alumina can be dissolved by soaking in a 45% urea solution. Then rinse with water. If it is still not clean, it can be soaked in human acid potassium cleaning solution for 4-6h. Then wash the activated alumina with water.
After washing with tap water, brush it with soapy water and wash it carefully. When washing, use a dish to make more foam. Then rinse with tap water and rinse with distilled water three times. Leave it on the drying rack or drain it in the oven for later use. According to the requirements of the test and the nature of the glass and the degree of staining, different washing liquids and methods are used. Brushing with a water brush is performed by brushing with water, so that the water-soluble substance can be dissolved, and the dust adhering to the surface of the instrument can be washed away. The use of this method is to note that the amount of activated alumina balls in the container can be used in this way, and a large amount is prohibited.
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