Colloidal Silica Sol

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..

SiO2% 14-16 Specific Gravity 1.08-1.09 Na2O% 0.5 PH Value 25 9-11 Viscosity(25, mPas) 6.5 Particles Size(nm) 2-7 Shelf Life 6 months application to #PulPaperMaking -improve fiber and #finesretention -improve colloidal retention -improve starch retention -improve #dewatering (#drainage, #pressing, and #drying) -improve formation -improve runnability -reduce downtime and off-quality production

Refractory fibers with Silica Sol as the main raw material are widely used as thermal insulation materials in industrial furnaces and other thermal and industrial equipment due to their excellent energy saving and high temperature resistance Other amorphous refractories and ceramic products with silica sol as a bond because they will not bring in a variety of low melting point oxides improve the use of performance and have the advantages of high release strength high temperature volume stability high temperature thermal shock resistance etc Si02 2931 Na2O 05 Specific gravity25 119121 PH value25 9105 Viscosity25 65 Particles SizeNM 1020 Shelf life 1 year appearance transparent

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.

Supplier: Colloidal silica, silica sol

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..

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.