Application and properties of brucite

Brucite is also known as brucite, the chemical equation is Mg (OH) 2. The hardness of brucite is about 2.5. The common brucite is flake aggregate or fibrous aggregate. We usually call it brucite or brucite asbestos. Today, I will tell you about the use of brucite and the basic information of brucite. I hope you can understand brucite from the explanation.


Physical and chemical properties of brucite


The fracture surface of brucite is glassy, its cleavage surface is pearly, and the luster of fibrous brucite is silk; The hardness is 2.5. The fine flakes of brucite have flexibility and certain flexibility. The whiteness of brucite can reach 95%.


Mechanical properties of brucite: the tensile strength of brucite is about 902mpa, which is a medium strength fiber material. The modulus of elasticity of brucite is 13800 MPa, which is brittle to some extent. It is easy to grind into fine powder. The relative density of brucite powder is 2.39.


Chemical properties: brucite is the best alkali resistant inorganic fiber formed naturally. It will dissolve in strong acid, and brucite is easy to be eroded in humid environment.


Application of brucite


Industrial application: brucite can be used to extract magnesium and magnesium oxide, and brucite can be used to extract mg and MgO. Because of the content of MgO in brucite and its easy decomposition, Mg and MgO can be extracted from brucite; The results show that the refractoriness and density of the refractories are high. Because in the modern iron and steel industry, a large number of magnesia carbon brick, magnesia chrome brick and other products are needed; Brucite can also be used to make light MgO: some chemical methods can be used to extract light MgO from low quality brucite in developed countries such as Europe and America; At the same time, brucite can also be used to make chemical pure magnesium reagent, and magnesium element can be extracted by electric heating to make chemical pure magnesium reagent.


Periclase is synthesized by electric melting, so as to make high-tech electronic products. Periclase is prepared from brucite by electric melting, which has high thermal conductivity and good electrical insulation. At the same time, brucite can also be used as reinforcing material, and fibrous brucite can be used as a substitute for chrysotile in some special fields. Because brucite has good flame retardant effect, it is a non-toxic and pollution-free flame retardant. Because of its high whiteness, brucite can be used in papermaking. In addition, due to the dense quality, rich color, good light transmittance, even and fine texture of brucite, other patterns are formed after processing, which is of great ornamental value.


The formation of brucite


Brucite is a mineral formed by low temperature hydrothermal alteration in dolomite or serpentine. The crystal structure is layered, the structure of the ore layer is ionic bond, and the structure can be maintained by phase. The single crystal of brucite is thick plate-shaped, with flake and fiber-shaped, in addition, it often forms the appearance of periclase.