Silicon dioxide

Quick Detaila Product Name: Silicon dioxide

CAS: 14808-60-7

MF: O2Si

MW: 60.0843

Einecs: 215-684-8

MP: 1610 °C(lit.)

BP: 2230 °C

Density 2.6 g/mL at 25 °C(lit.)

Water Solubility : Insoluble

Stability: Stable.

HS Code 25061000 Chemical Properties: granular abrasive solid of varied colour, depending upon other

Usage

Food additives .

Silicon dioxide is mostly obtained by mining and purification of quartz. Quartz comprises more than 10% by mass of the earth's crust. This product will be suitable for many purposes while for others chemical processing will be required to make a purer or otherwise more suitable (e.g. more reactive or fine-grained) product.

An estimated 95% of silicon dioxide produced is consumed in the construction industry, e.g. for the production of Portland cement. Other major applications are listed below.

Precursor to glass and silicon

Silica is used primarily in the production of glass for windows, drinking glasses, beverage bottles, and many other uses. The majority of optical fibers for telecommunication are also made from silica. It is a primary raw material for many ceramics such as earthenware, stoneware, and porcelain.

Silicon dioxide is used to produce elemental silicon. The process involves carbothermic reduction in an electric arc furnace

Major component used in sand casting

Silica, in the form of sand is used as the main ingredient in sand casting for the manufacture of a large number of metallic components in engineering and other applications. The high melting point of silica enables it to be used in such applications.

Food and pharmaceutical applications

Silica is a common additive in the production of foods, where it is used primarily as a flow agent in powdered foods, or to adsorb water in hygroscopic applications. It is the primary component of diatomaceous earth. Colloidal silica is also used as a wine, beer, and juice fining agent.

In pharmaceutical products, silica aids powder flow when tablets are formed.

Other

A silica-based aerogel was used in the Stardust spacecraft to collect extraterrestrial particles. Silica is also used in the extraction of DNA and RNA due to its ability to bind to the nucleic acids under the presence of chaotropes. Hydrophobic silica is used as a defoamer component. In hydrated form, it is used in toothpaste as a hard abrasive to remove tooth plaque.

In its capacity as a refractory, it is useful in fiber form as a high-temperature thermal protection fabric. In cosmetics, it is useful for its light-diffusing properties and natural absorbency. It is also used as a thermal enhancement compound in ground source heat pump industry.

COMPETITIVE ADVANTAGE

1. Rich experience.

2. Great quality and high purity

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4. Good after-sales service

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Packaging & Delivery Process

1. Mass stock, to make sure delivery promptly at the every day when the payment is done.

2. Having been engaged in this field for years, we have sophisticated and professional logistic agent, which can guarantee safe and speedy delivery.

3. Well-trained and disciplined packing team which is professional enough to provide you a safepackage. It also avoid a lot of emergency happen during the delivery so that high customs pass is guaranteed. Unique ways to ship 2 mgial to 20mgial at one time to your destination.

4. Packing pictures and tacking code are provided within 12 hours as soon as receiving the payment. Updated tracking information will be provided every other day just for you can hold a palm of your package.

5. Perfect after-sale service: Any questions or problems after receiving the product happend, please feel free to contact us. Problems would be solved immediately.