
Antiscorching Silica 7631-86-9
Molecular Formula: SiO2·nH2O
CAS NO.: 7631-86-9
Package: 25kg/bag
Storage Life: 12months
Description:
| Chemical Name | Silica |
| Molecular Formula | SiO2·nH2O |
| CAS NO. | 7631-86-9 |
| Package | 20-25kg/bag |
| Storage Life | 12 months |
Specification:
| Appearance | White Powder/Granule | ||||
Silica(Dry Basis)≥% | 98 | ||||
Type | S115 | S125 | S155 | S175 | S195 |
BET Specific Surface Area m2/g | 100-130 | 115-135 | 140-160 | 165-185 | 185-205 |
CTAB | 90-120 | 105-125 | 130-150 | 155-175 | 175-195 |
Bulk Density g/l | 190-260 Powder | ||||
PH value(10% aqueous solution) | 6.0-7.5 | ||||
Loss on Ignition(dry basis)% ≤ | 7.0 | ||||
Loss on Drying % ≤ | 4.0-8.0 | ||||
DBP Adsorption, cm³/100g | 200-300 | ||||
Residue (45μm ) %≤ | 0.50 | ||||
Cu Content, mg/kg≤ | 30.0 | ||||
Mn Content, mg/kg≤ | 50.0 | ||||
Fe Content, mg/kg ≤ | 1000.0 | ||||
%(Na2SO4) Soluble Salts%(in forms of Na2SO4)≤ | 1.6 | ||||
Silica is used in the manufacture of flat glass, glass, foundry sand, glass fiber, ceramic glaze, blasting for rust prevention, sand for filtration, flux, refractory and lightweight concrete. Silica is widely used. Crystals that are rare in nature can be used to make important parts, optical instruments and crafts in the electronics industry. Silica is an important raw material for the manufacture of optical fibers. Generally pure quartz can be used to make quartz glass. Quartz glass has a small expansion coefficient, which is equivalent to 1/18 of ordinary glass. It can withstand extreme temperature changes and has good acid resistance (except HF). Therefore, quartz glass is often used to make high temperature resistant chemical instruments. Quartz sand is often used as a glass raw material and building material.
Silica is an important material for scientific research in the manufacture of glass, quartz glass, water glass, optical fiber, important parts of the electronics industry, optical instruments, handicrafts and refractory materials.
When the crystal of silica is perfect, it is crystal; after the silica gel is dehydrated, it is agate; the colloid of water containing silica is solidified and becomes opal; when the crystallite of silica is less than a few microns, it is composed of chalcedony, vermiculite and secondary. Quartzite. Mineral resources with very stable physical and chemical properties. Crystals are trigonal oxide minerals, ie low-temperature quartz (α-quartz), which is the most widely distributed mineral species in quartz family minerals. The generalized quartz also includes high temperature quartz (β-quartz). Quartz block, also known as silica, is mainly used to produce quartz sand (also known as silica sand), and is also a raw material for quartz refractories and fired ferrosilicon.
The food industry is used as an anti-caking agent, antifoaming agent, thickener, filter aid, and clarifying agent. China's "Sanitary Standards for the Use of Food Additives" (GB2760-2011): can be used for egg powder, powdered sugar, milk powder, cocoa powder, cocoa butter, vegetable powder, instant coffee, soup powder, etc., the maximum use is 15g / kg , powder flavor, the maximum use is 80g / kg; solid beverage, the maximum use is 0.2g / kg; grain, 1.2g / kg
Why choose us?
- We have a comprehensive understanding of the Antiscorching Agent market.
- We are able to accommodate others and sympathize with them. We treat talents well and actively help others.
- Our customer-centric approach is key to our success.
- Our company has a sound department management system and quality assurance system, to ensure that each product standard factory, so that customers feel value for money.
- Our expertise in the industry allows us to provide valuable insights to our customers.
- Our team spirit is a natural working habit formed in many links such as learning and progress, pragmatic solidarity, cultivating responsibility and nurturing mission.
- We are flexible and adaptable to meet changing market conditions.
- We always insist on the cost performance advantage of our Antiscorching Silica 7631-86-9 and provide our customers with quality products at reasonable prices.
- As a supplier and manufacturer, we offer competitive pricing.
- We grasp the market trends, conscientiously implement the customer return visit system, timely feedback market information.
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