Use in the field of environmental protection Magnesium hydroxide has important applications in the field of environmental protection, especially in wastewater treatment and waste gas treatment. In wastewater treatment, magnesium hydroxide can be used to remove heavy metal ions in wastewater, such as cadmium, nickel, copper, etc. It separates heavy metals from wastewater by chemically reacting with heavy metal ions to form insoluble hydroxide precipitates.
For example, in the treatment of cadmium-containing wastewater, magnesium hydroxide can react with cadmium ions to produce cadmium hydroxide precipitation, reducing the content of cadmium in the wastewater, so that it meets the discharge standard.In waste gas treatment, magnesium hydroxide can be used to remove acid gases such as sulfur dioxide and hydrogen chloride. Magnesium hydroxide reacts with these acidic gases to form the corresponding salts, thus achieving the purpose of purifying the waste gas.
For use in the field of flame retardancy
Magnesium hydroxide is an excellent inorganic flame retardant.It has good flame retardant performance, can decompose heat when the material is burned, reduce the combustion temperature, and the released water vapor can dilute the concentration of flammable gases and oxygen, so as to play a flame retardant role. For example, adding magnesium hydroxide to materials such as plastics, rubber, wire and cable can significantly improve the flame retardant performance of these materials and reduce the occurrence and spread of fire.
Use in the field of medicine
In medicine, magnesium hydroxide is often used to treat conditions such as excessive stomach acid.It neutralizes stomach acid and relieves stomach symptoms. Common stomach drugs such as magnesium hydroxide suspension make use of this property of magnesium hydroxide.
Use in industrial fields
In industrial production, magnesium hydroxide can be used to prepare other magnesium salts, such as magnesium oxide and magnesium sulfate.For example, magnesium oxide can be obtained by calcination of magnesium hydroxide at high temperature.
Uses in the field of agriculture
Magnesium hydroxide can be used as a soil conditioner to regulate the pH of the soil.For acidic soil, the appropriate addition of magnesium hydroxide can increase the pH value of the soil and improve the physical and chemical properties of the soil, which is conducive to the growth of crops.In summary, magnesium hydroxide has a wide range of important uses in many fields such as environmental protection, flame retardant, medicine, industry and agriculture. With the continuous progress of science and technology and the continuous expansion of application fields, the use of magnesium hydroxide will be more extensive and diversified.
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