High-Quality White Carbon Black Precipitated Silica for Industrial Use

• Customization: Available
• CAS No.: 7631-86-9
• Formula: Sio2
• Model NO.: JC-SiO2-02
• EINECS: 231-545-4
• Classification: Silicon Dioxide
• Grade Standard: Industrial Grade
• Kind: Acidic Oxide
• Quality: Special Class
• pH: 6.5-7.5
• Silica Content: ≥90%
• Color: ≥90%
• Drying Reduction: ≤7%
• Appearance: White Powder
• Mesh: Customizable
• Expiration Date: 2 Years
• Bag Marks: Customizable
• Sample: Free
• MOQ: 25tons
• Transport Package: PP Bag
• Specification: 20kg/1000kg
• Trademark: N/M
• Origin: China
• HS Code: 281122
• Production Capacity: 20000tons/Month

Product Description

Product Description

1. Definition and Basics
    Precipitated silica is an amorphous form of silicon dioxide (SiO2). It is a white, powdery substance that is widely used in various industries due to its unique properties.

2. Production Method
    It is typically produced through a precipitation process. Usually, a soluble silicate (such as sodium silicate) reacts with an acid (like sulfuric acid or HCl). The chemical reaction results in the precipitation of silica gel, which is then processed further through steps like filtration, washing, drying, and sometimes calcination to obtain the final precipitated silica product. The general reaction can be represented as: Na2SiO3+2HCl→SiO2+2NaCl+H2O.

3. Physical Properties
Particle Size:
Precipitated silica generally has a relatively larger particle size compared to some other forms of silica. The particle size can range from a few micrometers to tens of micrometers.
Specific Surface Area:
It has a significant specific surface area, which can vary depending on the production process. This property makes it useful in applications where adsorption or interaction with other substances is important.
Porosity:
It often exhibits a porous structure, with a network of pores that contribute to its high surface area and can influence its performance in different applications.

4. Chemical Properties
Chemical Inertness:
It is chemically stable and relatively inert under normal conditions. It does not react readily with most common substances, which makes it suitable for use in a wide range of products.
Surface Reactivity:
Despite its overall inertness, the surface of precipitated silica can have reactive sites, especially hydroxyl groups
(-OH). These surface groups can participate in chemical reactions or interactions with other molecules, enabling its use as a filler or additive in various formulations.

Detailed Photos

Product Parameters

Standard item name	Technical requirement	CT-175	Granule Grade Silica	CT-99L
Silica content %	≥90	96	96	98.5 (dry basis method)
Color %	≥90	92	92	93
Average particle diameter (mesh)		100-325	40-80	100-325
Specific surface area m2/g	155-220	175-190	165-200	175-200
PH value	6.5-7.5	6.5-7.0	6.5-7.0	7
Drying reduction %	≤7	4-7	4-7	4-7
Oil absorption value cm3/g	1.8-3.3	2.4-2.8	2.0-2.8	2.2-3.0
Burn reduction %	≤7.0	<7	<7	<7
Sieve residue (45um)	≤0.5	<0.5	<0.5	<0.5

Application

 

Rubber Industry:
It is widely used as a reinforcing filler in rubber products, especially in tires. When added to rubber, it improves the mechanical properties such as tensile strength, abrasion resistance, and tear resistance. It also helps in reducing rolling resistance in tires, which improves fuel efficiency.
Cosmetics and Personal Care:
In cosmetics, precipitated silica is used as an absorbent, thickening agent, and anti - caking agent. It can help control the texture of products like powders, creams, and lotions, and also improve their stability.
Food Industry:
It is used as an anti - caking agent in powdered food products such as spices, salt, and baking powder. It prevents the particles from clumping together, ensuring a free - flowing powder.
Paints and Coatings:
In paints and coatings, it serves as a thickening agent, anti - settling agent, and rheology modifier. It helps to improve the flow and leveling of the paint during application and enhances the durability and scratch resistance of the coating.

 

 

 

 

 

 

Packaging & Shipping

Packaging:
10kg/25kg/50kg bag--27tons/1FCL without pallet
1000kg bag--25tons/1FCL without pallet

Shipping:
We mainly use MSC, Maersk, CMA CGM, COSCO, HPL, ONE, YML, WHL, PIL and ZIM.

Product List

Certifications

Company Profile

Shandong Jiuchong Chemical Company Limited was founded in 2016, which is located in Weifang City, Shandong Province, China. We have 228 square meters of office space. Now Jiuchong chemical is a large modern international chemical enterprise with more than 28 series. Since our establishment, the company has gradually established and improved a sound supply chain system, quality monitoring system and service system, ensuring products quality and service. 
At the same time, relying on our own geographical location and resource advantages, our company is committed to the optimization of a variety of chemical supply chain, including magnesium chloride, sodium metabisulfite, sodium bicarbonate, calcium chloride, magnesium sulfate, polyaluminium chloride, aluminium sulfate, industrial salt, soda ash etc. 
Our products are sold well in 288 domestic cities and more than 36 foreign countries. Now the company has won the praise and trust of domestic and foreign customers. Based on stable quality and output, good team service and staff efforts, we will continue to develop domestic and foreign markets.
Jiuchong chemical takes "integrity, innovation and development" as the concept, puts integrity in the priority position in serving customers, and guarantees high quality products and satisfactory cooperation for customers experience. Your satisfaction is our driving force. Quality is the soul of enterprise and that is what we have always done. In the future, Shandong Jiuchong Chemical Company Limited hopes to build a brilliant tomorrow with you!