QUALITY Sodium Cryolite & Potassium Cryolite FACTORY

Potassium fluoroborate is an important inorganic compound. Here is its detailed introduction:   Basic Information Chemical Formula: KBF₄ English Name: Potassium tetrafluoroborate or Potassium fluoroborate CAS No.: 14075-53-7 Molecular Weight: 125.90 Alternative Names: Potassium borofluoride; Tetrafluoroborate potassium salt   Physical and Chemical Properties Appearance: White powder or gelatinous crystals. Density: Approximately 2.50 g/cm³ (at 25℃). Melting Point: 530℃. Solubility: Slightly soluble in water (solubility is 0.4g/100mL at 20℃), sparingly soluble in hot ethanol, and insoluble in cold ethanol and alkaline solutions.   Chemical Properties Stability: Stable at room temperature, but incompatible with metals. It can be decomposed by strong acids such as sulfuric acid to produce boron trifluoride. When fused with alkali metal carbonates, it generates fluorides and borates. Complexation: The tetrafluoroborate ion has a tetrahedral structure and can form complexes with various metal ions.   Preparation Methods Potassium Hydroxide-Fluoroboric Acid Method: Put hydrofluoric acid and boric acid into a reactor at a weight ratio of 25:6.2. Keep the temperature below 40℃ and react for 6 hours to prepare fluoroboric acid. Then transfer the fluoroboric acid to a neutralization tank, and neutralize it with 5mol/L potassium hydroxide under stirring and cooling until methyl orange changes color. The precipitated potassium fluoroborate crystals are centrifuged, washed, and dried to obtain the finished product of potassium fluoroborate. Potassium Carbonate-Neutralization of Fluoroboric Acid Method: In a plastic-coated container, neutralize fluoroboric acid with saturated potassium carbonate solution under stirring until methyl orange changes color. The precipitated potassium fluoroborate is centrifuged, washed, and dried to obtain the finished product of potassium fluoroborate.   Applications Metallurgical Industry: Served as a raw material for boron-containing alloys, it is used in the casting of aluminum-magnesium alloys to improve alloy performance. It acts as a flux in thermal welding and brazing to remove metal slag, such as in the welding of silver, gold, and stainless steel. Electrochemical Engineering: Used as a component of electrolytes for low-chromic anhydride chromium plating and lead-tin alloy electroplating to optimize the quality of electroplated coatings. It can also be used as an analytical reagent. Material Processing: Applied as an abrasive in thermosetting resin grinding wheels or a filler in heavy-duty grinding wheels to enhance wear resistance. It also functions as an etchant for texture etching of aluminum alloys and etching of titanium and silicon wafers. Other Fields: Can be used as a lubricating oil additive; lubricating oil containing potassium fluoroborate has excellent lubricating, anti-friction, and anti-wear properties. It is used as a catalyst or solvent in organic synthesis. In textile printing and dyeing, it acts as a resin finishing agent to improve fabric performance.   Safety Information Potassium fluoroborate decomposes to produce toxic boron trifluoride gas when heated above its melting point. In the atmosphere, it hydrolyzes rapidly due to the action of water vapor, generating white fumes, which are irritating to the skin, eyes, and especially the lungs. Its hazard transportation code is UN 3260. It is a hazardous substance with corrosivity. It should be stored in a cool, dry warehouse with sealed packaging to prevent package damage.

.gtr-container-pfa7s8 { font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif; color: #333; line-height: 1.6; padding: 16px; max-width: 100%; box-sizing: border-box; } .gtr-container-pfa7s8-title { font-size: 18px; font-weight: bold; margin-bottom: 16px; color: #0056b3; text-align: left; } .gtr-container-pfa7s8-section-title { font-size: 16px; font-weight: bold; margin-top: 24px; margin-bottom: 12px; color: #28a745; text-align: left; } .gtr-container-pfa7s8-paragraph { font-size: 14px; margin-bottom: 12px; text-align: left !important; } .gtr-container-pfa7s8-list { list-style: none !important; padding-left: 20px; margin-bottom: 12px; } .gtr-container-pfa7s8-list li { position: relative; padding-left: 15px; margin-bottom: 8px; font-size: 14px; text-align: left; } .gtr-container-pfa7s8-list li::before { content: "•" !important; color: #0056b3; position: absolute !important; left: 0 !important; font-size: 14px; line-height: 1.6; } @media (min-width: 768px) { .gtr-container-pfa7s8 { padding: 24px; max-width: 960px; margin: 0 auto; } .gtr-container-pfa7s8-title { font-size: 20px; margin-bottom: 20px; } .gtr-container-pfa7s8-section-title { font-size: 18px; margin-top: 30px; margin-bottom: 15px; } } Potassium Fluoroaluminate Product Introduction Potassium fluoroaluminate (chemical formula: $KAlF_4$ or $K_3AlF_6$ complex), commonly known as an inorganic flux or aluminum flux, is a widely used white inorganic salt in industrial applications. Due to its excellent physicochemical properties, it has become an indispensable auxiliary material in modern industrial production. 1. Core Industrial Uses The primary application of potassium fluoroaluminate is in aluminum brazing. As a highly effective flux, it effectively removes the oxide film from the surface of aluminum alloys, lowers the melting point, and improves the wettability of the molten solder, thereby achieving high-strength metal connections. In addition, it is often used as a magnesium removal agent in the aluminum processing industry, significantly improving the purity of the alloy. 2. Physical and Chemical Properties Appearance: White or light gray powder. Low melting point: It has a low initial crystallization temperature, allowing it to melt quickly and function effectively during the brazing process. Solubility: Slightly soluble in water, and exhibits strong ability to dissolve metal oxides in the molten state. Stability: Chemically stable in a dry environment, facilitating long-term storage and transportation. 3. Expanded Application Areas Abrasives: As a filler in grinding wheels and sandpaper, it effectively reduces grinding temperature, improves wear resistance and cutting efficiency. Glass and ceramics: Used as a flux in production to reduce firing costs. Pyrotechnics: Used in the manufacture of luminous agents.

/* Unique root container for style isolation */ .gtr-container-cryo789 { font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif; color: #333; line-height: 1.6; padding: 16px; max-width: 100%; box-sizing: border-box; border: none !important; /* Ensure no border on the root container */ } /* General paragraph styling */ .gtr-container-cryo789 p { font-size: 14px; margin-bottom: 1em; text-align: left !important; /* Enforce left alignment for paragraphs */ word-break: normal; /* Prevent breaking words unnaturally */ overflow-wrap: normal; } /* Styling for simulated H3 headings */ .gtr-container-cryo789 .gtr-section-title { font-size: 18px; font-weight: bold; margin-top: 1.5em; margin-bottom: 1em; color: #222; text-align: left; } /* Unordered list styling */ .gtr-container-cryo789 ul { list-style: none !important; /* Remove default list style */ padding-left: 25px; /* Space for custom bullet */ margin-bottom: 1em; } .gtr-container-cryo789 ul li { position: relative; margin-bottom: 0.5em; font-size: 14px; text-align: left; list-style: none !important; } /* Custom bullet for unordered lists */ .gtr-container-cryo789 ul li::before { content: "•" !important; /* Custom bullet character */ color: #007bff; /* A subtle industrial blue for emphasis */ font-size: 1.2em; position: absolute !important; left: 0 !important; top: 0; line-height: inherit; } /* Strong text styling */ .gtr-container-cryo789 strong { font-weight: bold; color: #000; /* Ensure bold text stands out */ } /* Math inline styling (if any) */ .gtr-container-cryo789 .math-inline { font-style: italic; color: #555; } /* Responsive adjustments for PC screens */ @media (min-width: 768px) { .gtr-container-cryo789 { padding: 24px; max-width: 960px; /* Limit width for better readability on large screens */ margin: 0 auto; /* Center the component */ } .gtr-container-cryo789 p { margin-bottom: 1.2em; } .gtr-container-cryo789 .gtr-section-title { margin-top: 2em; margin-bottom: 1.2em; } .gtr-container-cryo789 ul { padding-left: 30px; } } Cryolite, chemically known as sodium hexafluoroaluminate ($Na_3AlF_6$), is an indispensable mineral material in modern industry, particularly within metallurgy and materials science. While natural cryolite is extremely rare, synthetic cryolite is produced at scale to meet the demands of several critical sectors. The following are the three core applications of cryolite: 1. Flux for the Aluminum Smelting Industry This is the primary and most significant use of cryolite. In the well-known Hall-Héroult process for aluminum production, cryolite plays a decisive role. Lowering the Melting Point: Pure alumina ($Al_2O_3$) has a melting point of approximately 2050°C, which would require an immense amount of energy to melt directly. When alumina is dissolved in molten cryolite, the melting point of the system drops to around 950°C - 970°C, drastically reducing industrial energy consumption. Electrical Conductivity: Cryolite possesses excellent conductivity in its molten state, acting as the electrolyte that allows electric current to pass through and decompose the alumina into metallic aluminum. Solubility and Density: Cryolite dissolves alumina effectively. Furthermore, the density of the resulting electrolyte is slightly lower than that of liquid aluminum, allowing the refined aluminum to settle at the bottom of the electrolytic cell for easy collection. 2. Opacifier and Flux in the Glass and Ceramics Industry In the fields of construction materials and handicraft manufacturing, cryolite is frequently used as an auxiliary additive to improve product appearance and processing performance. Opacifier (Whitening Agent): Cryolite can render glass and enamel translucent or milky white. When manufacturing opal glass (used in high-end lampshades or cosmetic containers), the tiny crystals precipitated by cryolite scatter light, creating a soft, matte texture. Reducing Firing Temperatures: Adding cryolite to ceramic glazes and glass batches effectively lowers the melting temperature of the materials. This not only saves fuel but also protects the kiln lining, extending the lifespan of production equipment. 3. Wear-Resistant Filler for Abrasive Products In precision machining and mechanical manufacturing, cryolite plays a vital supporting role in the production of abrasives, such as grinding wheels and sandpaper. Improving Wear Resistance: Adding cryolite as a filler in resin-bonded grinding wheels significantly enhances the service life of the abrasive tool. Cooling and Anti-oxidation: During high-speed cutting or grinding, the thermal decomposition of cryolite provides lubrication and cooling, preventing thermal damage or oxidation on the ground surface. Chemical Synergy: It helps abrasive grains adhere better to the substrate, ensuring the stability and high efficiency of the grinding process. Summary With its unique physicochemical properties—particularly its exceptional molten salt characteristics—cryolite has become the "cornerstone of the aluminum industry." Beyond this, it also plays an irreplaceable role in pesticides (as an insecticide), rubber manufacturing, and electronic raw materials.

On September 14, 2025, Jiaozuo Eversim Import and Export Co., Ltd. was systematically carrying out the shipment of goods, with this shipment consisting of 360 tons of cryolite.   Cryolite, with the chemical formula Na₃AlF₆, typically appears as white, fine crystals, odorless, with a hardness of 2-3 and a melting point of 1009°C. It readily absorbs moisture. Due to its wide application in various industrial fields, it has become an extremely important chemical raw material. In the aluminum industry, cryolite is considered the core additive in aluminum electrolysis production, significantly lowering the melting point of the electrolyte while enhancing its conductivity. This not only reduces energy consumption during electrolysis but also greatly increases aluminum production and quality, earning it the title of the 'soul' of the aluminum industry. In the ceramic and glass industries, cryolite acts as a flux, lowering the melting points of ceramics and glass, effectively improving production efficiency and enhancing product transparency and mechanical properties. In the metallurgical industry, whether for steel, copper, or lead smelting, cryolite serves as a flux, accelerating the melting of metals and increasing production. It is also used in the manufacture of fluorides such as aluminum fluoride and hydrofluoric acid. With excellent optical properties, it is used in optical materials to produce optical glass and lenses. Additionally, in building materials, cryolite can be used to make fireproof and insulating materials; in electronic materials, it can be used to make electronic components and semiconductor materials for electronic products.   Jiaozuo Eversim Import and Export Co., Ltd. has always adhered to a professional and efficient business philosophy, steadily advancing in import and export operations. For this shipment of 360 tons of cryolite, workers strictly followed operating procedures during the process of moving the goods from the storage area to the transport vehicles, ensuring that each bag of cryolite was properly placed. These 360 tons of cryolite will be transported by road to various cooperative enterprises across the country, supporting the continuous development of related industries and meeting the needs of different sectors for cryolite.  

The market price fluctuation of cryolite is affected by a variety of factors, mainly including the following aspects:   Supply and Demand Relationship The balance between market supply and demand is a key factor influencing cryolite prices. When the market demand for cryolite exceeds supply, prices tend to rise; conversely, when supply is excessive and demand is insufficient, prices will fall. For example, in major application fields such as the aluminum industry, if aluminum production increases significantly, the demand for cryolite will also rise accordingly, thereby driving up its price.   Production Costs The production of cryolite usually relies on specific raw materials, such as fluorite, sulfuric acid, and aluminum hydroxide. If there is a shortage of these raw materials or their prices rise sharply, it will inevitably push up the production cost of cryolite, leading to an increase in the price of cryolite. In addition, the production process of cryolite consumes a large amount of energy, such as electricity and coal. If energy prices rise, resulting in higher production costs, manufacturers may increase the price of cryolite to maintain profits.   Product Purity The purity of cryolite has a significant impact on its price. High-purity cryolite is more widely used in fields such as chemical industry and metallurgy, and its performance is more superior, so its price is usually higher. With the increasing market demand for high-quality cryolite, the price of high-purity cryolite may rise further.   Transportation Costs The longer the transportation distance of cryolite, the higher the transportation cost, which in turn leads to a corresponding increase in the price of cryolite. Therefore, differences in geographical location and transportation conditions will also have an impact on the price of cryolite.   Environmental Policies The tightening of environmental policies may lead to the shutdown of some small-scale and substandard production enterprises, thereby reducing market supply and driving up prices. For instance, more stringent environmental standards may require enterprises to invest more funds in pollution control and waste disposal, which increases production costs and further affects the market price of cryolite.   Market Competition The cryolite industry is highly competitive. The market concentration of electrolytic-grade cryolite is relatively high, while the competition in the industrial-grade cryolite market is relatively fragmented. This competitive pattern leads to frequent price wars. Enterprises compete for market share through technological innovation, product differentiation, and service improvement, which may have an impact on prices.   Macroeconomic Factors During periods of economic prosperity, industrial production is active, the demand for cryolite increases, and prices may rise; during economic recessions, demand decreases, and prices may fall. In addition, factors such as trade frictions and exchange rate fluctuations may affect the import and export trade of cryolite, thereby influencing the supply, demand, and prices in the domestic market.

  Potassium fluoroaluminate (chemical formula: K₃AlF₆, also often written as KAlF₄, the specific form depends on crystallization conditions) is an important inorganic fluoride with unique chemical properties, thus having wide applications in multiple industrial fields. The following is a detailed introduction to its main uses:   1. Key flux in aluminum electrolysis industry This is the most important application field of potassium fluoroaluminate. In the process of producing metallic aluminum by electrolysis, molten cryolite (Na₃AlF₆) is the main electrolyte, but pure cryolite has a high melting point (about 1000°C). Adding potassium fluoroaluminate can significantly reduce the melting point of the electrolyte (usually to 900-950°C), while improving the conductivity of the electrolyte and reducing energy consumption. In addition, it can stabilize the composition of the electrolyte and prolong the service life of the electrolytic cell.   2. Flux for welding and brazing Potassium fluoroaluminate is used as a flux in welding (especially the welding of aluminum and aluminum alloys), and its functions are:   Removing the oxide film on the metal surface (such as Al₂O₃), which will hinder the combination of solder and base metal; Reducing the surface tension of the solder, promoting the spreading of the solder on the surface of the base metal, and improving the welding strength and sealing performance; Preventing the metal from re-oxidation during the welding process to ensure welding quality. In brazing processes, it is also often used for joining materials such as aluminum alloys and magnesium alloys.   3. Ceramic and glass industry Ceramic manufacturing: As an additive in ceramic glazes, potassium fluoroaluminate can reduce the melting temperature of the glaze, improve the gloss and fluidity of the glaze surface, and at the same time inhibit bubble and pinhole defects in the glaze. Glass production: In the melting of some special glasses (such as optical glass, low-expansion glass), it can be used as a clarifying agent or flux to help remove bubbles in the glass melt and optimize the transparency and uniformity of the glass.   4. Metal surface treatment In the surface treatment of aluminum and aluminum alloys, potassium fluoroaluminate can be used to prepare corrosion-resistant conversion films (such as phosphating films, passivation films), improving the corrosion resistance of the metal surface and coating adhesion. It can also be used as a slag remover in metal smelting to remove impurities (such as oxides, silicates) in the molten metal and purify the metal melt.   5. Other fields Catalyst field: In some organic synthesis reactions, potassium fluoroaluminate can be used as a catalyst or catalyst carrier, especially in reactions involving fluorides, which can improve reaction efficiency. Laboratory use: As a chemical reagent, it is used in fluoride-related synthesis experiments or analytical testing (such as quantitative analysis of aluminum and fluoride ions).

In the field of abrasives and grinding tools, cryolite (with the main component of Na₃AlF₆) plays multiple important roles by virtue of its unique physical and chemical properties. The detailed elaboration from multiple dimensions is as follows: I. As a Bond Modification Additive Lowering the sintering temperature: The melting point of cryolite is approximately 1,000°C. During the sintering process of grinding tools, it can form a eutectic with other bonds (such as the silicate components in ceramic bonds), significantly reducing the sintering temperature and energy consumption. Meanwhile, it avoids the strength degradation of abrasives (such as corundum and silicon carbide) due to excessive high-temperature decomposition. Improving bond fluidity: Molten cryolite can increase the fluidity of the bond, enabling it to wrap abrasive particles more uniformly. This enhances the forming density and structural strength of grinding tools, reduces porosity, and optimizes the wear resistance and impact resistance of grinding tools. Regulating the chemical properties of the bond: The fluoride ions (F⁻) in cryolite can react with metal oxides in the bond to form stable fluorides, improving the chemical bonding force between the bond and abrasives and enhancing the overall bonding strength of grinding tools. II. Optimizing the Grinding Performance of Grinding Tools Promoting the discharge of grinding debris: During the grinding process, cryolite may decompose or soften due to frictional heat, forming lubricating substances to reduce the friction between abrasives and workpieces, lower the grinding temperature, prevent workpieces from burn or deformation due to overheating, and help grindings discharge smoothly to avoid wheel clogging. Regulating the self-sharpening property of grinding tools: The addition of cryolite can change the hardness and brittleness of the bond, making the grinding tool more prone to micro-cracking during grinding to expose new abrasive edges, maintaining the sharpness of the grinding tool (i.e., enhancing the "self-sharpening property"), which is particularly suitable for high-speed grinding or machining of hard and brittle materials. III. Functional Applications in Special Grinding Tools Used in electrolytic grinding tools: Cryolite has certain electrical conductivity. In electrolytic grinding (a process combining electrochemical and mechanical grinding), it can be added to grinding tools as a conductive phase to promote the progress of electrolytic reactions, improve processing efficiency, and is commonly used for precision machining of difficult-to-machine materials such as hard alloys and semiconductor materials. Stability in high-temperature environments: Cryolite is not easy to decompose at high temperatures and can maintain certain chemical inertness, which can be used to prepare high-temperature resistant grinding tools (such as ceramic grinding tools) and is suitable for grinding operations under high-temperature working conditions, such as rough grinding of steel castings. IV. Other Auxiliary Roles Improving the forming process of grinding tools: In the mixing stage of grinding tools, cryolite powder can be used as a dispersant to promote the uniform mixing of abrasives and bonds, reduce agglomeration, and improve the uniformity and compactness of green body forming. Regulating the thermal expansion coefficient of grinding tools: Cryolite has a low thermal expansion coefficient. After addition, it can reduce the overall thermal expansion rate of grinding tools, reduce deformation caused by temperature changes, and improve the dimensional stability of grinding tools in precision grinding. Application Scenarios and Precautions Common applications: Cryolite is mainly used in ceramic bond grinding tools (such as grinding wheels and grinding blocks), some resin bond grinding tools, and special electrolytic grinding tools, suitable for processing materials such as cast iron, non-ferrous metals, glass, and ceramics. Dosage control: Excessive addition of cryolite may cause excessive softening of the bond, reducing the hardness and wear resistance of the grinding tool. Therefore, the addition ratio should be accurately controlled according to the abrasive type, processing requirements, and bond system (usually 5%–15% of the bond mass).   In conclusion, cryolite optimizes the comprehensive performance of grinding tools by regulating sintering characteristics, grinding performance, and physical structure, and is a key functional additive to improve the processing efficiency and precision of grinding tools. 编辑 分享     冰晶石在磨料磨具中如何改善结合剂的润湿性？ 冰晶石在哪些类型的磨料磨具中应用更为广泛？ 冰晶石的添加量对磨料磨具性能有哪些具体影响？    

The following are the application industries of aluminum fluoride：   1.It is used to reduce the melting temperature of electrolyte and improve the conductivity in aluminum electrolysis industry. Aluminum fluoride sees its primary use as an additive in aluminum production and by electrolysis. Aluminum manufacturing must include extracting the aluminum from its ore, in which the ore is covered in pure aluminum oxide and is then electrolyzed by a solution of aluminum fluoride and cryolite. 2.It can be used as flux of non-ferrous metals; 3.It can be used as flux and glaze composition of ceramic glaze and enamel glaze; 4.It can be used as inhibitor of side fermentation in the production of essential oil; 5.It is used as an inhibitor of side fermentation in alcohol production; 6.Used as welding flux in metal welding; 7.For making optical lenses.

Cryolite is mainly used as a flux for aluminum electrolysis, which is its main purpose. In addition, it is also widely used in other fields, including grinding products, ferroalloys, non-ferrous metals, casting, chemicals, glass, ceramics, pesticides and other industries. Specifically, the role of cryolite in aluminum electrolysis is mainly as follows: Reducing the melting point of alumina: Cryolite can significantly reduce the melting point of alumina, so that it can melt at a lower temperature, thereby reducing the energy consumption of the electrolysis process. Increasing the conductivity of the electrolyte: The presence of cryolite can increase the conductivity of the electrolyte, allowing the current to pass through the electrolytic cell more effectively and improve the electrolysis efficiency. Stabilizing the electrolyte: Cryolite can stabilize the composition of the electrolyte, prevent adverse reactions during the electrolysis process, and ensure the stability of the electrolysis process： 1.In addition to its application in aluminum electrolysis, cryolite also has the following uses: 2.Abrasive products:: As a wear-resistant additive, it can improve the wear resistance, cutting force and service life of the grinding wheel. 3.Ferroalloys and boiling steel: used as flux to promote metal melting and smelting processes. 4.Nonferrous metal flux: used in the smelting of other nonferrous metals, playing a similar role in aluminum electrolysis. 5.Casting deoxidizer: helps remove oxygen from molten metal and improve the quality of castings. 6.Chemical industry: used as a catalyst for olefin polymerization, etc. 7.Glass industry: used to make glass anti-reflective coatings, enamel emulsifiers, glass opacifiers, etc. 8.Ceramic industry: used as a filler to improve the performance of ceramics. 9.Pesticide industry: used as a raw material for insecticides.

Aluminium fluoride is an inorganic substance with the chemical formula AlF3 prepared by the reaction of aluminium hydroxide or aluminium metal with hydrogen fluoride,or by the action of aluminium trichloride with hydrofluoric acid and ammonia.Colourless or white crystals.Insoluble in water and insoluble in acids and bases.Stable in nature,hydrolysable under heating.Used as an electrolyte conditioner and catalyst in the electrolysis of aluminium. CAS 7784-18-1 Appearance White or Colorless Crystal Melting Point 1290°C Boiling point 2170°C Density 3.1 g/mL at 25°C Molecular Formular AlF3 Molecular Weight 83.98 Type Dry/Wet Shelf life 2 Years Solubleness Insoluble in water,acid,alkali,insoluble in most organic solvents.

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