Appearance: White transparent flaky or granular crystal, uniform texture, no variegated color, no caking, no mechanical impurities, bitter and salty taste, highly hygroscopic and deliquescent in air
Product Introduction: Magnesium Chloride Hexahydrate, commonly known as halogen flakes, is one of the most widely used basic magnesium salt raw materials. It is refined from natural brine through purification and crystallization processes, complying with national standards GB/T 26521-2011 and GB 25584-2010. It is divided into three specifications: Class I high-purity premium grade, Class II general industrial grade, and food grade. Featuring stable purity, low impurities, excellent solubility and high cost performance, its aqueous solution is clear with high activity. It is widely applied in magnesium building materials, snow melting and anti-freezing, environmental water treatment, metallurgical desulfurization, aquaculture, food processing and chemical synthesis, serving as an essential raw material for magnesium oxychloride products, road anti-freezing and sewage treatment.
2. Physical and Chemical Properties
The product is white, odorless, transparent flaky or granular crystal with a bitter and salty taste. It has excellent hygroscopicity at room temperature and tends to soften and deliquesce when exposed to air. It is extremely soluble in water with fast dissolution speed and low heat absorption during dissolution. The aqueous solution is clear and transparent, weakly acidic, and highly conductive. It is soluble in ethanol but insoluble in most organic solvents. The product has stable physical and chemical properties, no decomposition or deterioration at room temperature, and maintains stable performance in low-temperature environments, suitable for snow melting and anti-freezing working conditions. With mild corrosiveness and low equipment loss, it features unified batch color, purity and solubility, perfectly adapting to automated feeding and continuous mass production lines with strong industrial versatility and outstanding cost performance.
3. Executive Standards & Technical Specifications (Dry Basis)
Executive Standard: GB/T 26521-2011 Industrial Magnesium Chloride
Product Grade: Class I High-Purity Premium Grade (High-precision Industry, Building Materials, Aquaculture), Class II General Industrial Grade (Snow Melting, Water Treatment, General Industry)
4. Core Product Characteristics
1. Stable Purity & Ultra-Low Impurities: The effective content of Class I high-purity magnesium chloride reaches ≥46%, with strictly controlled trace impurities such as calcium, sulfur, iron and potassium. All indicators meet standard requirements stably without harmful residues, suitable for high-standard scenarios including high-end building materials, precision aquaculture and food processing.
2. Premium & Transparent Appearance: The product presents pure white transparent flakes with uniform crystal color, no yellowing, black spots or variegated particles, no broken slag or dust impurities. It will not affect the appearance and quality of finished products, perfectly matching the production of high-end magnesium building materials.
3. Stable Physicochemical Performance & Wide Adaptability: It features stable chemical properties at room temperature without deterioration or failure. The clear aqueous solution has mild pH value and low corrosiveness, causing minimal loss to production equipment and exerting no impact on long-term production process parameters.
4. Rapid Dissolution & Zero Residue: With excellent water solubility, the product dissolves quickly and completely in water without sediment or floating impurities. The uniform and transparent solution adapts to precision proportioning and automated mass production processes.
5. Dry Texture & Good Storage Resistance: Finely screened and dried, the finished product is dry and non-sticky. Sealed storage effectively delays moisture absorption and prevents caking and hardening, maintaining stable quality during long-term storage.
6. High Cost Performance & Universal Industrial Application: As a mainstream universal magnesium salt raw material applicable to most industrial scenarios, it is produced by large-scale factories with prominent ex-factory price advantages. It serves as a high-cost-performance substitute for high-priced anhydrous magnesium salt, ideal for long-term bulk procurement and stock preparation.
7. Customized Adaptive Services: Available in flake and granular forms with customized purity grades, packaging specifications and OEM packaging services to meet personalized production demands of different customers.
5. Main Application Fields
Magnesium Building Materials Industry: Core raw material for magnesium oxychloride cement, widely used in the production of fireproof boards, partition boards, lightweight thermal insulation boards, greenhouse brackets, municipal guardrails, art decorative components and magnesium-based inorganic boards. It effectively improves the hardness, strength, toughness, waterproofness and fire resistance of products, and solves common problems of magnesium products such as halogen return, frost return, deformation and cracking.
Snow Melting & Anti-Freezing Industry: A core raw material for environmental snow melting and anti-freezing, applied in snow removal, deicing and road frost inhibition for highways, expressways, airports and squares. It features fast snow melting speed and stable low-temperature performance. Its corrosiveness is far lower than traditional snow melting salt, being friendly to road surfaces, vegetation and soil, and widely used in municipal engineering.
Environmental Water Treatment Industry: Used for industrial and domestic sewage treatment, with functions of flocculation and sedimentation, phosphorus removal, decolorization, turbidity reduction and heavy metal removal. It can adjust water pH value and inhibit algae growth, and also serve as dust suppression agent for coal mines and roads.
Chemical Synthesis Industry: Applied to produce magnesium hydroxide, magnesium oxide, magnesium carbonate, magnesium salt flame retardants and other magnesium salt products. It can be used as raw materials for chemical catalysts, antifreeze, refrigerants and fixing agents, with high reaction activity and stable finished product quality.
Aquaculture & Agriculture Industry: High-purity products are used for water quality adjustment and magnesium supplementation in mariculture and seedling breeding, stabilizing water quality and improving seedling survival rate. It serves as a magnesium fertilizer auxiliary in agriculture to improve soil structure and promote crop growth.
Other Industrial Fields: Widely used in metallurgical desulfurization, textile flame retardancy, ceramic processing, drilling additives, building material additives and dust suppression with comprehensive industrial coverage and strong adaptability.
6. Packaging, Storage & Transportation
Conventional Packaging: 25kg double-layer sealed woven bags with inner moisture-proof film, featuring moisture-proof, leak-proof and damage-proof performance to prevent caking. 1000kg ton bags are available for bulk shipment. Customized film coating, logo printing, OEM packaging and split packaging are supported.
Storage Requirements: Store in cool, dry, ventilated and clean professional chemical warehouses. Keep away from rain, ground moisture, high temperature and direct sunlight. Keep sealed and stacked to avoid moisture absorption. Prohibit mixed storage with strong acid, strong alkali, oxidants, corrosive materials and food raw materials. Inspect storage status regularly to ensure stable product quality.
Transportation Requirements: Classified as non-dangerous general chemical goods for normal cargo transportation. Keep rainproof, moisture-proof, sun-proof and damage-proof during transportation. Handle gently to avoid package breakage and leakage. Prohibit mixed transportation with toxic, peculiar-smell and corrosive goods. Conduct sealed moisture-proof protection for bulk sea transportation to prevent caking caused by cabin moisture.