Ultrafine silica powder is made from high-grade silica raw materials through special grinding and precision grading process, with fine particle size and controllable distribution. Ultrafine silica powder is widely used in industries such as electronic materials, paint and coating, silicone rubber, special ceramics, etc. The particle size of ultrafine silicon powder is usually D50=1-8 microns, and the particle size distribution is controllable. 99.22% Water 0.17% Loss on ignition 0.25% Fe2O3 0.023% Moh's hardness 7
Chemical Name: Blue Silica gel Synonyms: Silicon dioxide,Humidity indicator, Blue Indicating Desiccant, Moisture Absorbers Molecular Formula: mSiO2·nH2O CAS No.ï¼?112926-00-8 H.S. CODE: 3824909990 Characteristicsï¼? (1)
It is white, loose, amorphous, non-toxic and non-odorous nonmetal oxide. Due to the nanometer effect, it has excellent properties, such as reinforce, bodying, thixotropy, insulation and others.Therefore, it can be widely used in the rubber, plastic, paint coating, adhesive, seals and other polymer industrial area. Surface Area (m2/g): 150, 200
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Cristobalite silica flour production introduction Cristobalite flour is melted under the high temperature, Then the silica will be much more pure and steady. The color is much white. After special grinding and separating process,the product has find particles and controllable particle size distribution. It is widely used in the fields of high-tech electronic materials, high grade paints, silicone rubber, special ceramic, etc. Cristobalite silica flour production specification detail ITEM M3000 / M4000 / M6000 SiO2 99.5 Fe2O3 0.03 Al2O3 0.20 TiO?? 0.02 K2O 0.05 CaO 0.01 Cristobalite Packaging & Shipping 1.Packing : 25kg/bag ,then 1000kg/bag . 20-25mt/1x20container . we can pack it according your need too. 2. Delivery : It is not dangerous goods , can be delivered just as ordinary goods . Company Introduction Lianyungang changtong silica powder co.ltd established in 2009. We have been experience in producing and sales for almost 10 years .We are specializing in production of silica powder, silica sand, fused silica, cristobalite.We can accept you to customize the different specifications according to your own needs . We have sold our products to America,Brazil ,India ,Dubai ,Thailand ,Turkey and so on. We appreciate the opportunity to meet your silica need. Please kindly contact us right now if you're looking for a professional manufacture. Cristobalite FAQ 1. Q : Does your company offer free sample ? A : Yes ,we can offer free sample within 25kgs. 2. Q : Does your company accept any factory inspection ? A : Yes ,we accept customer inspection and third party inspection . 3. Q : Can you provide technical support ? A :yes ,we can provide on line technical assistance or on site technical guidance . 4. Q :whats your MOQ ? A:I Ton , (sample can be as minimum as possible ) 5. Q : can you offer free sample ? A : yes ,we can provide sample free for your testing . 6. Q : whats your delivery time ? A:within 15 days after receiving deposit . 7. Q : whats your export port
Silica Powder Introduction Silica powder has the advantages of excellent dielectric properties ,Low coefficient of thermal expansion, Complete chemical inertness and Neutral PH ,No chemical changes or induced reactions occur in either a catalyst or multicomponent. ChangTong silica power co.Ltd??s high purity silica power is produced for the electronic materials area ,sealants, electronic potting compound area .Its dispersion leveling is excellent, contraction and Coefficient of thermal expansion are small, Acid alkali resistance ,solvent insulation,,mechanical performance, Mixed epoxy resin transparency are all good. In total ,our excellent silica power can save cost and improve effectiveness for you . Silica Powder Properties Items Unit Typical testing value Moisture % 0.08 L.O.T. % 0.1 SiO2 % ã??99.6 Fe2O3 % 0.013 Al2O3 % 0.24 K2O % 0.003 CaO % 0.02 Na2O % 0.004 Mohs hardness 7 Density g/cm3 2.65 PH 6.5-7.0 whiteness ã??90 Oil Absorption (g/100g) 16-30 Melting point (??) 1730 Silica Powder Application Production Mesh witness Mons Performance Characteristics For silicon rubber use 1000-3500 ?¥ 95 7 1.Super White; 2.Extremely low moisture; 3.Good insulativity; 4.great reinforcing effect; For paint coating use 600-2500 ?¥ 95 7 1.High White; 2.Good Oil absorption,mix viscosity, dispersity, mobility; 3.Small angle of repose,rub resistance; For sealant use 800-2000 ?¥ 92 7 1.Moisture
Fused silica Introduction  Fused silica is made of high purity crystal silica by electrically fusing (fusing temperature 1800-2000â??) to amorphous Silicon dioxide , then it was classed to different grades by manual and then specially engineered to granular and powder form. Because fused silica has a very low thermal conductivity and excellent thermal shock resistance, it is used in lots of fields of investment casting,refractory,ceramic,epoxy modling compound,fusion bounded epoxy. Fused Silica Properties   Investment Casting Grade 2.1 SiO2 >99.90% 2.2 Al2O3
Cristobalite silica flour production introduction Cristobalite flour is melted under the high temperature, Then the silica will be much more pure and steady. The color is much white. After special grinding and separating process,the product has find particles and controllable particle size distribution. It is widely used in the fields of high-tech electronic materials, high grade paints, silicone rubber, special ceramic, etc. Cristobalite silica flour production specification detail ITEM M3000 / M4000 / M6000 SiO2 99.5 Fe2O3 0.03 Al2O3 0.20 TiO?? 0.02 K2O 0.05 CaO 0.01 Cristobalite Packaging & Shipping 1.Packing : 25kg/bag ,then 1000kg/bag . 20-25mt/1x20container . we can pack it according your need too. 2. Delivery : It is not dangerous goods , can be delivered just as ordinary goods . Company Introduction Lianyungang changtong silica powder co.ltd established in 2009. We have been experience in producing and sales for almost 10 years .We are specializing in production of silica powder, silica sand, fused silica, cristobalite.We can accept you to customize the different specifications according to your own needs . We have sold our products to America,Brazil ,India ,Dubai ,Thailand ,Turkey and so on. We appreciate the opportunity to meet your silica need. Please kindly contact us right now if you're looking for a professional manufacture. Cristobalite FAQ 1. Q : Does your company offer free sample ? A : Yes ,we can offer free sample within 25kgs. 2. Q : Does your company accept any factory inspection ? A : Yes ,we accept customer inspection and third party inspection . 3. Q : Can you provide technical support ? A :yes ,we can provide on line technical assistance or on site technical guidance . 4. Q :whats your MOQ ? A:I Ton , (sample can be as minimum as possible ) 5. Q : can you offer free sample ? A : yes ,we can provide sample free for your testing . 6. Q : whats your delivery time ? A:within 15 days after receiving deposit . 7. Q : whats your export port ? A: lianyungang , nanjing ,qingdao ,shanghai ,tianjin port .
Silica Sand Introduction Quartz sand is quartz stone processed by the crushing of quartz particles. Quartz stone is a non-metallic mineral, a hard, wearable, chemical properties and stability of silicate minerals, the main mineral composition is SiO2. Quartz sand is an important industrial mineral raw materials, non-chemical dangerous goods, widely used in glass, casting, ceramics and fireproof materials, smelting ferrosilicon, metallurgical flux, metallurgy, construction, chemical, plastics, rubber, abrasive, filter and other industries. Silica Sand Properties Items Unit Typical testing value L.O.T. % 0.1 SiO2 % ã??99.5 Fe2O3 % 0.015 Al2O3 % 0.1 CaO % 0.03 TiO2 % 0.004 MgO % 0.002 K2O % 0.02 Na2O % 0.005 Mohs hardness 7 Density g/cm3 2.65 PH 6.5-7.0 Melting point (??) 1730 Silica Sand Packaging & Shipping 1.Packing : 25kg/bag ,then 1000kg/bag . 20-25mt/1x20container . we can pack it according your need too. 2. Delivery : It is not dangerous goods , can be delivered just as ordinary goods . Company Introduction Lianyungang changtong silica powder co.ltd established in 2009. We have been experience in producing and sales for almost 10 years .We are specializing in production of silica powder, silica sand, fused silica, cristobalite.We can accept you to customize the different specifications according to your own needs . We have sold our products to America,Brazil ,India ,Dubai ,Thailand ,Turkey and so on. We appreciate the opportunity to meet your silica need. Please kindly contact us right now if you're looking for a professional manufacture. Silica Sand FAQ 1. Q : Does your company offer free sample ? A : Yes ,we can offer free sample within 25kgs. 2. Q : Does your company accept any factory inspection ? A : Yes ,we accept customer inspection and third party inspection . 3. Q : Can you provide technical support ? A :yes ,we can provide on line technical assistance or on site technical guidance . 4. Q :what??s your MOQ ? A:I Ton , (sample can be as minimum as possible ) 5. Q : can you offer free sample ? A : yes ,we can provide sample free for your testing . 6. Q : what??s your delivery time ? A:within 15 days after receiving deposit . 7. Q : what??s your export port ?
Hydrophobic colloidal silica refers to silica nanoparticles that have been chemically modified to repel water. Colloidal silica consists of tiny particles of silicon dioxide suspended in a liquid. These particles are so small that they remain dispersed rather than settling out of solution. Applications Coatings and paints: Hydrophobic colloidal silica can be used as an additive to improve the water resistance and durability of coatings and paints. It helps prevent moisture from penetrating the surface, thereby enhancing the protective properties of the coating. Rheology modifiers: Hydrophobic colloidal silica can be incorporated into various formulations to control rheological properties such as viscosity and thixotropy. This is particularly useful in industries such as cosmetics, adhesives, and printing inks. Catalyst supports: Hydrophobic colloidal silica can serve as a support material for catalysts in chemical reactions. The hydrophobic surface helps prevent unwanted interactions with water, allowing the catalyst to remain active for longer periods. Pharmaceuticals: Hydrophobic colloidal silica may be used in pharmaceutical formulations to improve drug stability, control release rates, and enhance bioavailability.
Industrial Silica Sand, also known as silica or quartz sand, is a high-purity form of sand that consists mainly of silicon dioxide (SiO). It is widely used in various industrial applications due to its unique properties, such as high melting point, hardness, chemical stability, and resistance to both physical and chemical weathering. Some of its key uses include: Glassmaking: Silica sand is a critical component in the production of glass, as it provides the silica needed for glass formation. Foundry: It is used in foundries for molding and casting metal parts, where its heat resistance makes it ideal for metal casting processes. Hydraulic Fracturing (Fracking): In the oil and gas industry, silica sand is used as a proppant in hydraulic fracturing to hold fractures open in the rock, allowing oil or gas to flow out. Construction: It is an important ingredient in the production of building materials like concrete and mortar, as well as various fillers and extenders in construction products. Ceramics and Refractories: Industrial silica sand is used in the manufacture of ceramics, including porcelain, tiles, and sanitaryware. It is also used in high-temperature-resistant materials. Water Filtration: Its uniform particle size and high silica content make it useful in water filtration systems, especially for treating drinking water. Chemical Production: Silica sand is used as a raw material in the production of silicon compounds and various chemical processes. Its purity and grain size make it highly valued across these industries.
High purity organic colloidal Silica High purity organic colloidal silica is produced by high purity colloidal silica. Silica colloidal particles is dispersed in organic solvent by unique technology of our company. Description High-purity organic colloidal silica is a refined form of colloidal silica known for its exceptional purity and suspension in an organic medium. What sets it apart is the unique stability and versatility that the organic solvent provides, making it ideal for a wide range of applications. The production process involves taking high-purity colloidal silica and using our company proprietary technology to disperse the silica particles into the organic solvent. This method ensures that the material remains stable, precise, and highly effective in its use.
Silica fume, also known as condensed silica fume or microsilica, is a spherical sub-micron amorphous silicon dioxide used in many applications. Silica fume is a co-product of silicon or ferrosilicon production, consisting of ultrafine (sub-micron), amorphous, non-porous, perfectly spherical silicon dioxide (SiO2) particles, with purity levels of 85 to 99 %. The main effect of these ultra-fine particles is to greatly improve particle packing and produce a highly pozzolanic reaction in concrete and other cementitious bond systems where the silicon dioxide reacts with calcium hydroxide, heightening performance levels and the strength and durability of these materials. Additionally, silica fume, because of its amorphous (non-crystalline) structure and its specific area, provides other useful features to various applications, including improved sintering capabilities and enhanced high temperature performance of refractory castables, resulting in reactions between microsilica and other components of the refractory mix. To summarize, silica fume has two key features which alone or in combination are the basis for its high performance: The nano-sized spherical non-porous particles create an efficient "filler effect" Primary particles have an average diameter of about 0.15 �¼m (150 nanometers) Microsilica is a highly reactive form of silica producing a "chemical effect" Thanks to its amorphous nature and high specific surface area.
Item No Index Measured Value Appearance White powder Compliance index Specific surface area of nitrogen adsorption m/g 200±10 200 Sio2- content >99.8 99.9% PH 3.7-4.5 4.19 Volatile matter % at 105 �ºC â?¤3.0 0.82 Tamping density g/dm�³ 30-60 31 Sieve residue(45�¼m) mg/kg â?¤250 19.93 Fumed silica is a very useful industrial chemical used in a variety of industrial and consumer products. Fumed silica poses a variety of health hazards to workers in various end-use industries and to those using products that use fumed silica. 1. in various resin additives, medicine, food and other fileds. 2. rubber, sealant, silica gel, adhesive, tile grout etc. 3. paint, coating, UPR, 4. CMP suspension etc; 5. Digital photo paper etc.
High purity silica refers to silicon dioxide (SiO2) with an exceptionally high level of purity, typically exceeding 99.9%. It is obtained through various refining processes to eliminate impurities and ensure its suitability for demanding applications across different industries. Characteristics and Applications Semiconductor Manufacturing: High purity silica serves as a crucial material in the production of semiconductor devices. It is used in the fabrication of silicon wafers, where its purity ensures minimal impurities that could negatively impact the electrical properties of the semiconductor. Optical Components: Silica with high purity is utilized in the manufacturing of optical fibers, lenses, and other optical components. Its transparency and low optical absorption make it ideal for transmitting light with minimal loss, essential for telecommunications, medical devices, and laser systems. Advanced Ceramics: High purity silica is a fundamental component in the production of advanced ceramic materials such as silica glass and silicon nitride ceramics. These materials find applications in industries ranging from aerospace and defense to electronics and biomedical. Pharmaceuticals and Cosmetics: Silica with high purity is used as an excipient in pharmaceuticals and cosmetics. It serves various functions including as a flow agent, desiccant, and viscosity modifier in formulations. Chemical Synthesis: High purity silica acts as a catalyst or catalyst support in various chemical reactions and processes. Its high surface area and uniform pore structure make it suitable for applications in catalysis, chromatography, and adsorption. Construction Materials: High purity silica is incorporated into construction materials such as concrete, mortar, and grouts to improve strength, durability, and resistance to environmental factors. It also contributes to the production of high-performance coatings and sealants. Environmental Remediation: Silica with high purity is used in environmental remediation applications such as water filtration and soil stabilization. Its inert nature and high surface area enable efficient removal of contaminants from water and soil.
Features and Applications High Purity: Electronic grade silica sol is produced with extremely high purity levels to minimize impurities that could adversely affect electronic components. This ensures the reliability and performance of semiconductor devices and integrated circuits. Particle Size Control: The particle size distribution of electronic grade silica sol is tightly controlled to meet precise specifications. This uniformity is crucial for achieving consistent results in semiconductor fabrication processes such as chemical mechanical planarization (CMP) and wafer cleaning. Surface Properties: Electronic grade silica sol is designed to have specific surface properties tailored for electronic applications. These properties may include controlled surface charge, stability, and compatibility with other process chemicals. Polishing and Planarization: In semiconductor manufacturing, electronic grade silica sol is used in CMP slurries for polishing and planarization of silicon wafers. It helps achieve smooth and flat surfaces essential for patterning and layer deposition processes. Dielectric Films: Electronic grade silica sol can be used to deposit thin dielectric films on semiconductor substrates through techniques such as spin coating or dip coating. These films act as insulating layers in electronic devices, providing electrical isolation between different components. Passivation and Encapsulation: Silica sol can be employed for passivation and encapsulation of semiconductor devices to protect them from moisture, contaminants, and mechanical damage. The high purity and stability of electronic grade silica sol ensure long-term reliability and performance. Photolithography: Electronic grade silica sol may also be utilized as a photoresist adhesion promoter or anti-reflective coating in photolithography processes. It helps enhance pattern fidelity and resolution during the fabrication of semiconductor circuits. Wafer Cleaning: Silica sol is used in wafer cleaning processes to remove contaminants, particles, and organic residues from semiconductor surfaces. Its high purity and compatibility with other cleaning agents make it an essential component in advanced cleaning solutions.
Modified silica sol refers to a type of colloidal solution where silica nanoparticles are suspended in a liquid medium, typically water. These silica nanoparticles are modified or functionalized with various organic or inorganic compounds to alter their surface properties and enhance their performance in different applications. The modification process can involve chemically bonding organic molecules to the surface of the silica particles, which can impart specific functionalities such as hydrophobicity, oleophobicity, or compatibility with certain polymers or solvents. Inorganic modifications may include incorporating metal oxides or other nanoparticles to enhance properties like catalytic activity or mechanical strength. Modified silica sols find widespread use in various industries such as coatings, adhesives, sealants, composites, and catalysts. They offer advantages like improved dispersion, adhesion, and compatibility, making them valuable additives in many formulations.
Hydrophobic silica is a type of silica material that has been chemically modified to repel or be resistant to water. This modification alters the surface properties of silica nanoparticles, making them less prone to interacting with water molecules. The modification process typically involves treating the surface of the silica nanoparticles with hydrophobic compounds, such as alkylsilanes or fluorosilanes. These compounds form a hydrophobic layer on the surface of the silica particles, effectively blocking interactions with water molecules. Hydrophobic silica finds numerous applications across various industries. For example, it is used as an additive in coatings, paints, and sealants to improve water repellency and durability. In the pharmaceutical and food industries, hydrophobic silica can be used as an anti-caking agent to prevent clumping in powdered products. Additionally, it is utilized in rubber and plastic composites to enhance their water resistance and mechanical properties.
Hydrophilic silica is a type of silica material that exhibits a strong affinity for water. Unlike hydrophobic silica, which repels water, hydrophilic silica readily interacts with and absorbs water molecules. The surface of hydrophilic silica nanoparticles is typically functionalized with hydrophilic groups, such as hydroxyl (-OH) groups. These groups enable the silica particles to form hydrogen bonds with water molecules, promoting their dispersion and solubility in aqueous solutions. Hydrophilic silica has various applications across industries. In the pharmaceutical and cosmetic sectors, it is used as an excipient in formulations to improve the dispersibility and bioavailability of active ingredients. In chromatography, hydrophilic silica is employed as a stationary phase for separating polar compounds. It is also utilized in coatings, paints, and adhesives to enhance their rheological properties and adhesion to substrates.
Silica fume, also known as microsilica, is a byproduct of the production of silicon and ferrosilicon alloys. It is an ultrafine powder consisting of spherical particles, typically about 100 times smaller than the average cement particle. This fine powder is rich in silicon dioxide (SiO) and is highly reactive when mixed with cement, making it a valuable additive in construction materials. Features of Silica fume: 1, With good insulation: due to the high purity, low impurity content, stable performance, excellent electrical insulation performance, silica fume makes the cured product has good insulation performance and arc resistance performance. 2. It can reduce the peak exothermic temperature of the curing reaction of epoxy resin, reduce the linear expansion coefficient and shrinkage rate of the cured substance. 3, Corrosion resistance: silicon powder is not easy to react with other substances, and most of the acid, alkali can not react chemically.Its particles evenly covered on the surface of the object, with strong corrosion resistance.
