PRODUCT NAME: COLLOIDAL SILICA Other name: SILICA SOL MODEL: JN-30 Color: Clear CAS NO. : 112926-00-8 TDS Specification: SIO2, %: 30, NA2O, %: 0.40 , PH: 9.0~10.5; Viscosity: 4.3-5.5 cp ; SP.GR: 1.19~1.21 Particle: 8~15 nm Application for investment casting, lost wax casting, refractory, water paint, concrete polishing..
Supplier: Colloidal silica,silica sol
PRODUCT NAME: COLLOIDAL SILICA Other name: SILICA SOL MODEL: JN-30 Color: Clear CAS NO. : 112926-00-8 TDS Specification: SIO2, %: 20-40% NA2O, %: 0.40 , PH: 9.0~10.5 Viscosity : 4.3-5.5 cp ; SP.GR: 1.19~1.21, 1.29~1.31 Particle Size: 8~15 nm Application for investment casting, lost wax casting, refractory, water paint, concrete polishing..
Silica is mainly used as a carrier of agricultural chemicals. Finely crushed silica powder is coated with agricultural chemicals and sold on the market for agricultural use. Silica itself has no effects; it merely serves as a carrier, and so can be dispersed without affecting the farmland, which makes it advantageous as a core material. It's used as Fire-resistant product powder, Agricultural chemical carrier, Agricultural chemical carrier, Construction board
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.
Keyway Industrial Limited Colloidal silica What is Colloidal Silica/ Silica Sol? Colloidal silica is a dispersion of amorphous silicon dioxide (silica) particles in water. These amorphous silica particles are produced by polymerizing silica nuclei from silicate solutions under alkaline conditions to form nanometer sized silica sols with high surface area. A charge is then induced on the silica nanoparticle surface that allows the silica particles to repel one another and form a stable dispersion, or colloid. Colloidal Silica Characters: Colloidal silicas are produced in a variety of grades that range in a number of factors. Particle size typically varies from 5nm to 40nm, and particle size distribution can vary from narrow to wide depending on the manufacturing process. Standard colloidal silica is stable at a pH from 8 - 10.5 and carries an anionic surface charge that is stabilized with sodium or ammonium. In certain grades, some of the silicon atoms in the silica particle are replaced with aluminate ions to allow for enhanced stability in a wider pH range, usually 3.5 - 10.5. Colloidal Silica Application: Densification of concrete, cement, and other materials. Fine retention in paper manufacturing. Enhanced bonding of waterborne adhesives. Improved surface friction and anti-slip properties. Wastewater filtration flocculant. Investment casting binding. Anti-soilant textile coatings.
We are supplier and exporter of Silica Sand. Silica Sand * Silica Sand is a type of sand usually available in the form of quartz. It is a hard and crystalline form of mineral components. * Silica sand is the most abundant mineral with the purity more than 99.0%. It is the preferred choice of consumption for various industrial purposes.
We deals in the following Chemicals :- Quartz / Silica Powder, Quartz / Silica Lumps, Quartz / Silica Granules, Quartz / Silica Grits Bentonite Powder, Bentonite Lumps, Bentonite Granules, Bentonite Clay Mica Powder, Mica Flakes, Mica Blocks, Mica Sheets, Mica Scraps Dolomite Powder Barite Powder, Barite Ore Hematite / Iron Oxide Powder, Iron Oxide ( Ferric Oxide ) Ilmenite (Synthetic Rutile) Fly Ash Powder Alumina Silica ( Cenosphere ) Powder Calcium Carbonate Powder Magnetite, Cellulose Fibers, Cellophane Flakes, Walnut Shells
