Is magnesium hydroxide precipitated?

Precipitation.

Magnesium hydroxide is hard to dissolve in water and is a deposit. Magnesium hydroxide is a kind of white crystal or powder. It is difficult to dissolve in water and alcohol, in dilute acid and ammonium salt solution. The aqueous solution is alkaline. The solubility in water is very small. Generally speaking, in addition to sodium hydroxide, potassium hydroxide, barium hydroxide, ammonia water soluble in water, calcium hydroxide slightly soluble in water, other hydroxides are difficult to dissolve in water.


Application field of magnesium hydroxide:








1. Magnesium hydroxide is an excellent flame retardant for plastic and rubber products. As desulfurizer of flue gas in environmental protection, it can replace caustic soda and lime as neutralizer of acid wastewater. It is also used as an oil additive to prevent corrosion and desulfuration. In addition, it can also be used in the refining of electronic industry, medicine, sugar, as thermal insulation materials and other magnesium salt products.








2. Magnesium hydroxide has excellent buffering performance, reaction activity, adsorption capacity and thermal decomposition performance. It can be used not only as chemical material and intermediate of e5a48de588b6e79fa5e9819331333431376662, but also as a green environmental flame retardant and additive in rubber, plastic, fiber and resin industries. Magnesium hydroxide is mainly used as flame retardant, acid wastewater treatment agent, heavy metal remover and flue gas desulfurizer in the field of environmental protection.








3. The product can be used as flame retardant or flame retardant filler to be added into polyethylene, polypropylene, polystyrene and ABS resin. It has good flame retardant and smoke eliminating effects, with the addition amount of 40-20 phr.








However, when anionic surfactant is needed to treat the surface of particles, the cheap high-grade fatty acid-base metal salt or anionic surfactant such as alkyl sulfate and sulfonated succinate can be used, the dosage is about 3%. The product is also used in manufacturing magnesium salt, refining sugar, pharmaceutical industry, daily chemical industry, etc.