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Pure Silicon CAS 7440-21-3

Molecular Formula: H4Si

Formula Weight: 32.12

ZSpharmac: Pure Silicon Supplier

Product Name: Pure Silicon
CAS No: 7440-21-3
Purity: 99%

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Basic Info

Product Name:Pure Silicon
Other Names:Silicon
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:White Powder
EINECS No.:231-130-8
Storage:Flammables Area
Provide:Pure Silicon MSDS;
Pure Silicon COA

What is Pure Silicon?

The chemical facet indicator of silicon is Si as well as the atomic number is 14. It is a difficult and also breakable crystalline solid with a blue-gray metallic gloss and also is a tetravalent metalloid as well as semiconductor. It is a member of team 14 on the table of elements: carbon is above it; germanium, tin, as well as also lead are listed below it. It’s fairly less competent. As a result of its high chemical desire for oxygen, it was not till 1823 that Jöns Jakob Berzelius was for the extremely first time able to prepare oxygen and additionally determine it in pure type. Its melting together with steaming variables of 1414 ° C as well as additionally 3265 ° C, specifically, are the 2nd biggest possible of all metalloids as well as also nonmetals, after boron. Silicon is the 8th most regular component in deep space by mass, nevertheless seldom takes place in the Earth’s crust as a pure component. It is thoroughly dispersed in dust, sand grains, earths along with earths in different type of silica (silicates) or silicates. More than 90% of the Planet’s crust is silicate minerals, making silicon the second most bountiful component worldwide’s crust (approximately 28% by mass), after oxygen.

Pure Silicon Property

Melting point 1410 °C(lit.)
Boiling point 2355 °C(lit.)
density 2.33 g/mL at 25 °C(lit.)
storage temp. Flammables area
form powder
color White
Specific Gravity2.42
PH13.5 (H2O, 20°C)
Water Solubility INSOLUBLE


Pure Silicon Uses

1. Silicon is normally made use of as a compound for making polycrystalline silicon, single crystal silicon, silicon light weight aluminum alloy and silicon steel alloy;
2. It is an unbelievably important semiconductor product for making alloys, organosilicon substances as well as silicon tetrachloride, and so on;.
3. Taken advantage of to make transistors, rectifiers as well as solar panels, and in addition made use of to make high-silicon stars iron, silicon steel, numerous all-natural silicon compounds, etc;.
4. It is the raw material for generating semiconductor silicon tools, utilized to make high-power rectifiers, high-power transistors, diodes, switching tools, and so on;.
5. Made use of in the manufacture of semiconductor distinct devices, power gadgets, integrated circuits as well as epitaxial substrates, etc.

Applications of Pure Silicon

Vital silicon has several of one of the most important applications in this electronic age. Among the main applications is integrated circuit. A solitary crystal of crystalline silicon is made use of in strong state or semiconductor devices. High-purity silicon doped with micronutrient such as boron, phosphorus, arsenic as well as gallium is amongst the most efficient semiconductors. They are used in transistors, power rectifiers, diodes along with solar batteries. Silicon rectifiers transform alternating existing to direct existing most effectively. Hydrogenated amorphous silicon changes solar energy right into electrical power. Silicone (unsteady) is utilized in the lotion to improve the product’s security capability to avoid dampness from evaporating from the skin. Silicone polyethers are mostly made use of in liquid skin treatment formulations in addition to deal better gentleness, gloss as well as additionally hand. Silicon is also utilized as an alloy when incorporated with iron, steel, copper, light weight light weight aluminum and also bronze. When integrated with steel, it makes a phenomenal spring for all kinds of uses, including cars.

Preparation of Pure Silicon

Essential silicon is created readily by home heating silicon dioxide with carbon (coke) in an electrical heater making use of carbon electrodes:
SiO2+ C → Si+ CO2.
The purity of the obtained product is about 96-98%. Repeated leaching resulted in about 99.7% detoxified product. Conversely, lower silicon is transformed to its halides or halosilanes and then minimized with a high-purity lowering representative. Ultrapure silicon for semiconductor applications can be created in several means. These procedures consist of the decrease of silicon tetrachloride with high-purity zinc:.
SiCl4 +2 Zn → Si +2 ZnCl2.
Or use silicon filaments to reduce trichlorosilane with hydrogen at 1,150 ° C:.
SiHCl3+ H2 → Si +3 HCl or heating silane or silicon tetraiodide to high temperature:.
SiH4 → Si +2 H2SiI4 → Si +2 I2 or by decreasing silicon tetrafluoride with salt:.
SiF4 +4 NaF → Si +4 NaF.

Production Method of Pure Silicon

Industrial manufacturing includes the crucible Czochralski technique, the suspension area melting approach, and also the neutron transmutation doping approach.
Prior to the crucible pulls the far crystal, the parts of the devices, the alloy quartz crucible, the silicon polycrystal and also the seed crystal are cleaned up.
The polycrystalline silicon is squashed to eliminate graphite, after degreasing with acetone, chemically cleansed, cleaned with ion-free water up until neutral, after that ultrasonically cleaned up, infrared dried out, batched and also doped, added to the alloy quartz crucible of the solitary crystal furnace, and after that After vacuuming as well as thawing, under the circulating argon environment, the man-made seeding is placed and ended up. Throughout the equal-diameter development process of the crystal, the power requires to be adjusted appropriately according to the circumstance to obtain an item with an uniform size. After screening as well as weighing, the completed product of silicon single crystal is acquired.
The suspension area melting approach first cleans the tools and also resources, cuts off the polycrystalline silicon, degreases with acetone after grinding, carries out chemical cleaning, washes to neutral with ion-free water, and afterwards cleans with ultrasonic waves, infrared drying, batching as well as doping, Heater, evacuate or fill with argon. The single crystal was cleansed by area melting under high-frequency heating under argon. Preheating, seeding, taking on, equivalent size, ending up and also other processes are regulated manually. After screening as well as evaluating, the Pure Silicon ended up item is acquired.

About Products:
If you need Pure Silicon as a cosmetic raw material, please contact our service staff directly, and we will provide you with high-quality products at the best price.
As an experienced Pure Silicon manufacturer and supplier, ZSpharmac will provide Pure Silicon raw materials to customers all over the world for a long time.
Over the years, the company has been adhering to the spirit of “integrity management, strict quality control, customer first”, and has won unanimous praise from domestic and foreign customers.

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Help China Chemicals to benefit the happiness of human life
Become the most trusted chemical supplier in the world
Striver – oriented, enrich employees, customer first, deep service, seek development
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Cosmetic raw materials
  • Products/Service:Cosmetic raw materials (flavors and fragrances,antioxidant products, moisturizing and hydrating, whitening agents, cosmetic additives)
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

Get Pure Silicon Quotation