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Zhishang Chemical

Pure Silica CAS 14808-60-7

Molecular Formula: O2Si

Formula Weight: 60.08

ZSpharmac: Pure Silica Supplier

Product Name: Pure Silica
CAS No: 14808-60-7
Purity: 99%

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Basic Info

Product Name:Pure Silica
Other Names:Quartz
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:White Powder
EINECS No.:215-684-8
Storage:No Restrictions.
Provide:Pure Silica MSDS;
Pure Silica COA

What is Pure Silica?

Pure Silica (SiO2) is the most abundant of all minerals. Silica that exists in nature is called silica and accounts for about 12% of the total weight of the earth’s crust. Silica has three different crystal forms: quartz, tridymite and cristobalite. Quartz is the most stable at room temperature, and the other two are stable at high temperature. Because they transform into quartz very slowly, they also exist at room temperature.

Pure Silica Property

Melting point 1610 °C(lit.)
Boiling point 2230 °C
density 2.6 g/mL at 25 °C(lit.)
refractive index n20/D 1.544(lit.)
storage temp. no restrictions.
form powder
color white
Specific Gravity2.2-2.6
PH5-8 (400g/l, H2O, 20℃)(slurry)
Water Solubility insoluble


Pure Silica Uses

  1. Pure Silica is utilized as a stimulant service provider for vital petrochemical products such as phthalic anhydride, aniline, maleic anhydride, melamine, butadiene rubber, and also acrylonitrile. It is additionally commonly used in refining petrochemical items, getting rid of fragrant hydrocarbons, as well as precisely adsorbing and also separating certain organic gases as well as fluids. It can also be made use of as an ion exchanger for eliminating multivalent hazardous aspects in water. It is additionally made use of for completely dry storage of products, tools as well as other items and water removal as well as filtration of high-purity gas.
  2. Pure Silica is generally used as a liquid adsorbent, desiccant as well as fragrance carrier, and can likewise be utilized as a stimulant carrier.
  3. Pure Silica is made use of as a dehumidifying desiccant, a dehydrating agent, a dampness barrier and an air humidity regulator. Likewise utilized for gas drying out. It is likewise made use of as a stimulant and also a stimulant body, a reinforcing agent for silicone rubber, and also a sizing agent for the textile market.
  4. Pure Silica is made use of as a hygroscopic representative, as well as its color adjustments from blue to red with the increase of hygroscopic total up to show the moisture adjustment of the space medium of the covered plan.
  5. Pure Silica changes ethyl silicate for accuracy casting to reduce manufacturing costs, improve running environment and also enhance item high quality. Made use of as a sticky for refractories and also other materials. It is a covering material to stop oxidation of some items. As a treatment agent for artificial fibers to boost the rubbing coefficient of fibers. Used in the paper sector to enhance paper level of smoothness as well as paper strength. It is likewise utilized as a rough and catalyst for the ending up of digital products, and also as a coagulant for sulfuric acid in batteries.
  6. Pure Silica is extensively utilized in various cosmetic and skin care items. In skin treatment and aesthetic formulations, silica is utilized as an unpleasant active ingredient and also to enhance product structure as well as function.

Pure Silica - the "Panacea" to Enhance the Performance of Ceramics!

At home and abroad, in-depth research has been carried out on various additives doped alumina ceramics to improve their mechanical properties, among which Pure Silica is a commonly used sintering aid component. Chen Xi et al. studied the effect of adding MgO-SiO2 on the sintering properties of high-purity Al2O3 ceramics. Pure Silica can obtain stable silicate liquid phase at high temperature. They are binary or ternary low melting point compounds, and the liquid phase can promote Sintering, reducing the sintering temperature, refining the grains, and improving the mechanical properties of alumina ceramics.

In addition, if nano-SiO2 is added to 95 ceramics instead of nano-Al2O3, it can not only play the role of nano-particle refinement, but also improve the strength, toughness, hardness and elastic modulus of ceramic materials, which is more effective than adding Al2O3. more ideal. Ji Juncheng et al. added different amounts of nano-SiO2 to 95 alumina ceramics, prepared samples by dry pressing, and explored the effects of different sintering temperatures and nano-SiO2 additions on the sintering properties and mechanical properties of 95 alumina ceramics. The results show that: When the addition amount of nano-SiO2 is 2% and the sintering temperature is 1600℃, the grain size of the sample is uniform, the maximum bulk density is 3.70g/cm3, and the flexural strength and fracture toughness reach the maximum value of 342.89MPa and 5.34MPa·m1/ 2. Compared with the samples without nano-SiO2, the flexural strength and fracture toughness are increased by 34.28% and 4.5%, respectively.

Aluminum titanate (Al2TiO5, AT for short) is a ceramic material with high melting point and low expansion characteristics. It is widely used in automobile engine components, non-ferrous metal casting and electronic ceramics and other industries. However, the aluminum titanate material will decompose into corundum and rutile at 800-1280 ℃, thus losing its low expansion characteristics. Therefore, exploring the stabilization method and stabilization mechanism of aluminum titanate is the key to the research of aluminum titanate material. Lu Hongbin et al. used the secondary firing process to study the effect and mechanism of additives MgO and Pure Silica on inhibiting the thermal decomposition of aluminum titanate. The research results show that MgO and Pure Silica composite additives can significantly improve the thermal stability and flexural strength of aluminum titanate.

The research found that the BaTiO3 powder material coated by Pure Silica is sintered into ceramics at 1225℃, and the dielectric ceramics with perovskite structure can be obtained. The introduction of Pure Silica produces the second phase Ba2TiSi2O8. After sintering, the leakage current of the ceramic dielectric material is relatively large, and the voltage resistance characteristics cannot show a certain rule, but the voltage resistance performance and energy storage density of the material are improved.

Beryllium oxide ceramics have been widely used in vacuum electronic technology, nuclear It has been widely used in the fields of technology, microelectronics and optoelectronics, and has become an indispensable basic electronic functional material in the fields of military electronic information technology and aerospace applications.

At present, beryllium oxide ceramics are developing in the direction of high purity and high performance. Generally, products containing more than 99% of BeO are required, but the higher the purity, the more difficult the material is to be sintered and dense. Through research, Tang Haiyan et al. found that Pure Silica doping has a significant effect on the microstructure and properties of 99BeO high thermal conductivity ceramics. unimodal distribution. When the doping amount of Pure Silica is 0.8% (w), a high thermal conductivity ceramic with excellent performance and compact structure can be obtained. Its flexural strength is 248MPa, the density is 2.957g/cm3, and the thermal conductivity is 303W/(m K) .

Piezoelectric ceramics are used in every corner of social life. However, lead-based piezoelectric ceramics dominate the practical piezoelectric ceramic materials. The sintering temperature of traditional piezoelectric ceramics is generally about 1200-1300 °C. The PbO contained in the material has a very low melting point and is seriously volatilized during high temperature sintering. Due to the volatilization of PbO, the stoichiometric ratio of the material deviates from the designed formulation, which reduces its performance. This problem can be better solved if sintering can be carried out before PbO volatilizes obviously. Therefore, a positive and effective method to inhibit the volatilization of PbO is to realize low temperature sintering of piezoelectric ceramics.

He Jie et al. discussed the effect of SiO2 doping on the properties of antimony manganese lead zirconate titanate Pb (Mn1/3Sb2/3) 0.05Zr0.47Ti0.48O3 (PMSZT) piezoelectric ceramics during low temperature sintering. The results show that the perovskite structure can be obtained when the synthesis temperature is 900 ℃, and the PMSZT samples all coexist with tetragonal and trigonal phases when w(SiO2) is different. slightly increased. When w(SiO2)=0.10%, piezoelectric ceramics with excellent electrical properties are obtained, tanδ=0.4%, piezoelectric constant d33=264pC/N, electromechanical coupling coefficient kp=0.59, mechanical quality factor Qm=3113. The addition of Pure Silica reduces the Curie temperature of PMSZT ceramics, and the resonant frequency is almost always positive with temperature.

Wang Ziyuan et al. studied the effect of Pure Silica content on the sintering rate of YSZ ceramics after aging at different temperatures, and also studied its effect on the structure, morphology and performance changes of YSZ during aging. It was found that adding SiO2 would accelerate the change of mechanical and thermal properties of YSZ ceramic block after secondary sintering. At the heat treatment temperature of 1300℃, the porosity reduction rate of the samples added with 0.3% SiO2 was 48%, the increase rate of hardness was 14%, the increase rate of Young’s modulus was 15%, and the increase rate of thermal conductivity was 25%. higher than the sample without SiO2 addition. Therefore, the introduction of SiO2 will accelerate the sintering of YSZ at high temperature.

Liu Junhuan et al. used the laser cladding method to prepare CaP bioceramic coatings with different silicon content. The study found that with the increase of Pure Silica content, the corrosion current density on the coating surface gradually decreased, and the formation of bone-like apatite on the coating surface could be accelerated. Apatite is evenly distributed. Therefore, low content of SiO2 can improve the corrosion resistance and bioactivity of bioceramic coatings.

Alumina foam ceramics are mainly made of alumina fine powder, kaolin, potassium feldspar, silicon micropowder and other raw materials.

There are three effects of silica micropowder on product performance:

One is to reduce pores by filling gaps;

Second, it is better to combine with alumina micropowder at a lower temperature, and to close part of the through holes, so as to densify the product;

The third is to generate mullite crystal phase in the high temperature process and disperse into the product, thereby improving the performance of the product.

ZnO varistor ceramics can effectively absorb overvoltage and overcurrent in the circuit, and provide real-time protection for power and electronic systems. It is the core component of surge absorbers and arresters. Chen Yongjia et al. studied the effect of Pure Silica doping on the microstructure and electrical properties of ZnO varistor ceramics. During the sintering process, Pure Silica can form a liquid phase with ZnO, which promotes the formation of spinel phase and is beneficial to the uniform distribution of grain boundaries. With the increase of SiO2 doping concentration, the three strong diffraction peaks of ZnO varistor gradually shifted to the low angle direction, and the average grain size first decreased and then increased. When the doping concentration is 1.6%, the average grain size reaches the minimum value (1.5μm), the breakdown field strength E1mA reaches the maximum value (385.6V/mm), the nonlinear coefficient α reaches the maximum value (84.2), and the leakage current IL reaches the minimum value (1.1 μA).

Ouyang Linhong et al. prepared Pure Silica (SiO2) doped barium strontium titanate (Ba0.65Sr0.35TiO3, BST) ceramics (BST+x%SiO2) by a traditional solid-state reaction method, and studied the effect of doped silica on BST. Influence of phase, microscopic morphology, dielectric properties and electro-card effect of ceramics. The results show that doping SiO2 does not change the crystal structure of BST ceramics, but it helps to improve the uniformity of crystal grains and the stability of frequency of dielectric properties of the material. With the increase of SiO2 doping content, the dielectric constant of BST ceramics presents a monotonically decreasing trend, and the dielectric dispersion properties gradually increase.

In the preparation of garnet-based transparent ceramics, sintering aids are usually used to improve the optical quality of the ceramics. In the sintering process of garnet system ceramics, adding Pure Silica can generate a liquid phase and accelerate the discharge of pores along the grain boundary, which is an effective sintering aid. It is also worth noting that SiO2 can inhibit the valence of Pr ions during the annealing process. Therefore, adding a small amount of SiO2 combined with hot isostatic pressing sintering is an effective way to prepare Pr-doped garnet scintillation ceramics.

There are mainly three crystal forms of zirconia: m-ZrO2, t-ZrO2, and c-ZrO2. Research has confirmed that t-ZrO2 is a stable phase at room temperature and has a special phase transformation toughening mechanism. Good stability, high hardness and high melting and boiling point are the great advantages of nano-SiO2. Adding a small amount of Pure Silica to ceramics can promote the reduction of sintering temperature, which is beneficial to the sintering of ceramics and makes the ceramic particles evenly and closely arranged after sintering. After research, it was found that doping a small amount of SiO2 can make the tetragonal ZrO2 stable.

Pure Silica Production Method

The ion exchange method filterings system the watered down water glass to remove impurities, after that conducts cation exchange, anion exchange, readjusts the Ph worth, and focuses by evaporation or ultrafiltration to get silica sol.
Silica fume technique Add pure water and also salt hydroxide (reagent quality) into the reaction tank, raise the temperature to 65 ℃, add a certain amount of ammonia water to readjust the alkalinity, add silica fume in sets under mixing, regulate the temperature listed below 83 ℃, silicon After the powder is included, proceed mixing for 2-3 hours. When the Ph value drops to 9-10, take a sample for analysis. After the response is completed, cool it to 50 ° C under mixing, and also filter it naturally to get a silica sol item. Unreacted silica fume can be reused.

About Products:
If you need Pure Silica, a cosmetic raw material, please contact our service staff directly, we will provide you with high-quality products at the best price.
As an experienced Pure Silica manufacturer and supplier, ZSpharmac will provide Pure Silica 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, and 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 Silica Quotation