Fused quartz from 200nm to 2.2um has high transmittance and low thermal expansion coefficient, which makes it an ideal choice for spherical lens in ultraviolet ray, visible light and near infrared spectrum applications with strict requirements. Spherical lens is commonly used to improve signal coupling between optical fibers, transmitters and detectors, as well as objective lenses in endoscopy and bar code scanning applications. Hemispherical lens simplify the integration of the whole system.
Product specification: SiO2 Min.99% A1203 Max. 0.5% Fe203 Max. 100 ppm (0.01%) CaO Max. 0.5% MgO Max. 0.5% TiO2 Max. 0.05% NaC1 Max. 500 ppm Cr203 Max. 5 ppm Size (1) Less than 900µm: 0% (2) 710 µm 900 µm: Max. 1% (3) 600 µm 710 µm: Max. 5% (4) Bigger than 106 µm: Max. 8%
Silica sand
Fused quarts at 200nm to 2.2um has high transmittance and low coefficient of thermal expansion, which makes it an ideal choice for spherical lens with strict requirements in ultraviolet, visible and near-infrared spectral applications. Spherical lenses are commonly used to improve signal coupling between optical fibers,transmitters and detectors,as well as objective lenses in endoscopy and bar code scanning applications. Hemispherical lens can simplify the integration of the whole system.
Application of microsilica 1..Microsilica in concrete 2.Microsilica in refactory and ceramics 3.Microsilica in repair products(mortars & grouts) 4.Microsilica in shotcrete 5.Microsilica in oil well groution 6.Microsilica in building external thermalinsulation system 7.Microsilica in active powder concrete rpc cover board.
High grade Silica Sand with silica content above 99.6% and iron lower than 0.030%. Perfect for glass manufacturing
Silica sand /Quartz sand is processed by crushing quartz grains of quartz, quartz stone is a kind of non-metallic minerals, is a hard, wear-resistant and stable chemical properties of silicate minerals, the main mineral component is SiO2, quartz sand the color is white or colorless, translucent, Mohs hardness of 7, quartz sand is an important industrial mineral raw materials, non-hazardous chemicals, widely used in glass, foundry, ceramics and refractories, smelting ferrosilicon, metallurgical flux, metallurgy, construction, chemicals, plastics, rubber, abrasive, media and other industries. Sandblasting Grade of Silica Sand Fine Quartz Sand From China Manufacturer Features: Hard, wear-resistant, chemical stability of minerals. Natural Silica Sand. Huge Reserve raw material of Silica sand in China. White granules shape Used in float glass Painting,ceramics and so on. Wide application in many industry. Water filtration Glass manufacture Industrial casting Sand blasting Producing concrete Adding texture to slick roads Silica sand impacts every aspect of daily life. Many industrial suppliers carry silica sand in bulk quantities, while some smaller household stores sell it in smaller amounts for home or home construction use.
Silica sand /Quartz sand is processed by crushing quartz grains of quartz, quartz stone is a kind of non-metallic minerals, is a hard, wear-resistant and stable chemical properties of silicate minerals, the main mineral component is SiO2, quartz sand the color is white or colorless, translucent, Mohs hardness of 7, quartz sand is an important industrial mineral raw materials, non-hazardous chemicals, widely used in glass, foundry, ceramics and refractories, smelting ferrosilicon, metallurgical flux, metallurgy, construction, chemicals, plastics, rubber, abrasive, media and other industries. Sandblasting Grade of Silica Sand Fine Quartz Sand From China Manufacturer Features: Hard, wear-resistant, chemical stability of minerals. Natural Silica Sand. Huge Reserve raw material of Silica sand in China. White granules shape Used in float glass Painting,ceramics and so on. Wide application in many industry. Water filtration Glass manufacture Industrial casting Sand blasting Producing concrete Adding texture to slick roads Silica sand impacts every aspect of daily life. Many industrial suppliers carry silica sand in bulk quantities, while some smaller household stores sell it in smaller amounts for home or home construction use.
Silica sand /Quartz sand is processed by crushing quartz grains of quartz, quartz stone is a kind of non-metallic minerals, is a hard, wear-resistant and stable chemical properties of silicate minerals, the main mineral component is SiO2, quartz sand the color is white or colorless, translucent, Mohs hardness of 7, quartz sand is an important industrial mineral raw materials, non-hazardous chemicals, widely used in glass, foundry, ceramics and refractories, smelting ferrosilicon, metallurgical flux, metallurgy, construction, chemicals, plastics, rubber, abrasive, media and other industries. Sandblasting Grade of Silica Sand Fine Quartz Sand From China Manufacturer Features: Hard, wear-resistant, chemical stability of minerals. Natural Silica Sand. Huge Reserve raw material of Silica sand in China. White granules shape Used in float glass Painting,ceramics and so on. Wide application in many industry.
Silica sand /Quartz sand is processed by crushing quartz grains of quartz, quartz stone is a kind of non-metallic minerals, is a hard, wear-resistant and stable chemical properties of silicate minerals, the main mineral component is SiO2, quartz sand the color is white or colorless, translucent, Mohs hardness of 7, quartz sand is an important industrial mineral raw materials, non-hazardous chemicals, widely used in glass, foundry, ceramics and refractories, smelting ferrosilicon, metallurgical flux, metallurgy, construction, chemicals, plastics, rubber, abrasive, media and other industries. Sandblasting Grade of Silica Sand Fine Quartz Sand From China Manufacturer Features: Hard, wear-resistant, chemical stability of minerals. Natural Silica Sand. Huge Reserve raw material of Silica sand in China. White granules shape Used in float glass Painting,ceramics and so on. Wide application in many industry. Water filtration Glass manufacture Industrial casting Sand blasting Producing concrete Adding texture to slick roads Silica sand impacts every aspect of daily life. Many industrial suppliers carry silica sand in bulk quantities, while some smaller household stores sell it in smaller amounts for home or home construction use.
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..
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..
We are looking forward to import micro silica 97% from worldwide suppliers or exporters. Quantity Required : 10,000 Tons Shipping Terms : FOB Kazakhstan Payment Terms : 50 % T/T on order and 50 % T/T against shipping documents Microsilica (silica fume) is a by product from silicon metal or ferro silicon industries,is an amorphous silicon dioxide sio2 which is generated as a gas in submerged electrical arc furnaces during the reduction of very pure quartz. As the molten metal is produced, a silica-based gas is emitted. This gaseous fume, as it rises, cools rapidly and forms extremely minute,amorphous, spherical particles. The microsilica is collected in a bag house, a system for filtering the hot air and gases vented from the furnace. This gas vapor is condensed in bag house collectors as very fine powder of spherical particles that average 0.1 to 0.3 microns in diameter with a surface area of 17 to 30 m2/g. Microsilica can be used in concrete and refractory materials. Microsilica ,when used in concrete, it can improve concretes properties such as compressive strength, bond strength and abrasion resistance, reduces permeability,and therefore helps in protecting reinforcing steel from corrosion. At the same time, microslica can still be used in the procustion of refractory and porcelain, to raise intensity and durability, it also can be used in paint, coating resin rubber and other high molecular as a filler material to improve the material overall performance.
Silicon powder is silicon that has been ground into a finely powdered dust. Depending on the purity of the silicon powder, it can be used for many purposes. It can be sintered, alloyed with metals to harden the mixture, made into microchips, used as a reactant in silicon compounds, or used in glass plasma deposition. Powdered silicon usually is made without any additional elements, but it can be mixed with elements such as carbon or oxygen to create different powders.
High grade silica sand from the Philippines.
Specifications:- SiO2 more than 99 % Al2O3 less than 0.40 % Fe2O3 less than 0.03 % Particle Size:- 0.1 mm to 0.6 mm
Silica Sand for Glass Manufacture . Quality = 99.9% Current monthly Supply = 25,000MT per month
Fused silica (grains & powder) and crystalline silica ( sand & powder) , which are widely used as materials for investment casting , refractory , ceramics , artificial marble , epoxy molding compound (emc filler), paints, coating, foundry industries etc. Our products includes : 1. Fused silica grains / fused micro silica powder sio2: 99.9%min fe2o3 : 15ppm max -50ppm max, particle size: a : 3-100mm , 5-50mm, 8-5mm , 5-3mm , 3-1mm , 1-0.5mm , 0-0.5mm , 0.5-0.2mm , 0.2-0.1mm , 0.5-1mm b : - 4+10mesh , -10+20 mesh , -10+30 mesh , -30+50 mesh , -50+100mesh , -120f , -325f, -400f, -600f or in accordance with customer's request . 2. Crystalline silica sands / crystalline micro silica powder sio2 : 99.5% min-99.98%min fe2o3 : 5ppm max-30ppm max, particle size: 2-4mesh , 4-6mesh , 6-10 mesh , 10-20 mesh , 20-40 mesh , 40-80mesh , 80-200mesh , -100mesh , -200mesh , -325mesh , 400mesh , 600 mesh.
Silica sand : min97% Sio2. Colour: White. Packaging: 1 Ton, 25kg and loose form. Size: 4-8, 8-16, 16-30, 30-60, 40-100, below 100 mesh.
SILICA SANDS: SiO2 >99.6
