What's the use of magnesium hydroxide

Application: magnesium hydroxide is widely used as flame retardant filler for PE, PP, PVC, ABS, PS, hips, PA, PBT, unsaturated polyester, epoxy resin, rubber, paint, chemical industry, environmental protection and other industrial fields; it is used as an excellent flame retardant and filler for plastic, rubber and other polymer materials, as flue gas desulfurization agent in environmental protection, and as neutralizing agent for acid containing wastewater instead of caustic soda and lime It can be used as oil additive, antiseptic and desulfurizing, refining electronic industry, medicine and sugar, insulation material and other magnesium salt products.


Common magnesium hydroxide: used in rubber, plastic, paint, coating, chemical industry and other industries.


Active magnesium hydroxide: active magnesium hydroxide flame retardant is widely used in rubber, chemical industry, building materials, plastics (polypropylene, polyethylene, polyvinyl chloride, ethylene propylene diene monomer) and electronic, unsaturated polyester, paint, coating and other polymer materials, especially for mine air duct coating cloth, PVC whole core transport belt, flame retardant rubber plate, tarpaulin, PVC wire and cable material, mining cable The flame retardant, smoke elimination and antistatic of sheath and cable accessories can replace aluminum hydroxide and have excellent flame retardant effect.


appearance:


White crystal or powder.


Packaging: the products are packed in composite paper bags, and the inner layer is in plastic film bags, with a net weight of 25kg per bag.


Handling and storage: handle with care, seal and keep away from damp.


Physical and chemical properties: white crystal or powder. The aqueous solution is alkaline. 2.36g/cm3。 Soluble in dilute acid and ammonium salt solution, almost insoluble in water and alcohol. The solubility in water (18 ℃) is 0.0009g/100g. It is easy to absorb carbon dioxide from the air. When heated above 200 ℃ in alkaline solution, it becomes hexagonal crystal. It decomposes into magnesium oxide and water at 350 ℃. When the temperature is higher than 500 ℃, the loss of water changes into magnesium oxide. Magnesium carbonate in boiling water can be transformed into magnesium hydroxide with worse solubility. The particle size was 1.5-2 μ m, mesh number was 10000, and whiteness was ≥ 95.