Chemical name: magnesium hydroxide

Molecular formula: Mg (OH) 2

Molecular weight: 58.32

English Name: magnesiumhydroxide

physical properties: colorless hexagonal crystal, density 2.36, insoluble in water

Chemical properties: decomposed to magnesium oxide at 350 ℃.

purpose: magnesium hydroxide is widely used in PE, PP, PVC, ABS, PS, hips, PA, PBT, unsaturated polyester, epoxy resin, rubber, paint flame retardant fillers, chemical industry, environmental protection and other industrial fields; excellent flame retardant and fillers used in plastic, rubber and other polymer materials, as flue gas desulfurizer in environmental protection, can replace caustic soda and lime as acid containing waste water As additive of oil products, it can prevent corrosion and desulfuration, refine electronic industry, medicine and sugar, heat preservation materials and other magnesium salt products.

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

active magnesium hydroxide: active magnesium hydroxide flame retardant, widely used in rubber, chemical industry, building materials, plastics (polypropylene, polyethylene, PVC, EPDM rubber), electronics, unsaturated polyester, paint, coating and other high polymer materials, especially for mine air duct coating cloth, PVC whole core transport belt, flame retardant rubber plate, awning cloth, PVC wire and cable material, mine The flame retardant, smoke eliminating and anti-static of cable sheath and cable accessories can replace aluminum hydroxide and have excellent flame retardant effect.

appearance: white crystal or powder.

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. Easy to absorb carbon dioxide in the air. When heated to above 200 ℃ in alkaline solution, it becomes hexagonal crystal system. It decomposes at 350 ℃ to form magnesium oxide hydrate. When the temperature is higher than 500 ℃, the loss of water changes into magnesium oxide. Magnesium carbonate in boiling water can be converted into magnesium hydroxide with worse solubility. Particle size 1.5-2 μ m, mesh number 10000, whiteness ≥ 95