White Carbon Black Used for Toothpaste Grade Silica Calcium Oxide CAS 10279-57-9

• CAS No.: 10279-57-9
• Formula: Sio2
• EINECS: N/a
• Composition: Sio2·nh2o
• Type: Synthetic
• Effect: for Food and Industrial
• Resource: Silicon Dioxide
• Boiling Point: 1610ºC(Lit.)
• Melting Point: >100ºC(Lit.)
• pH: 6.5-9.5
• Specific Surface Area (M2/G): 176-225
• Shelf Life: 24 Monthes
• Purity: 99%
• Transport Package: Paper Bag Packaging and Wooden Pallet
• Specification: 25kg
• Trademark: EASTAR
• Origin: China
• HS Code: 281122
• Production Capacity: 15000mt/Year

Product Description

White carbon black Hydrophilic precipitated silica powder silica pigmenton black
 

White carbon black is an inorganic salt chemical product. The main chemical content is hydrated silica (chemical composition: SiO2 • nH2O, CAS NO. 14464-46-1). The function of white carbon black is similar to that of carbon black. But it is of white color, so it is called white carbon black. White carbon black produced from vapor phase method and precipitation synthesis method. Vapor phase method get high purity, but the production process is complex and high energy consumption. By improving the production technology, white carbon black made by precipitation method can also get 93-99% purity. Precipitated white carbon black is currently the mainstream in the market. White carbon black has large specific surface area, porous structure, good chemical stability, good oil absorption, insoluble in water and alkaline substances, good heat resistance, insulation. It is widely used in rubber, silica gel, ink, paper making, medicine, daily chemicals, plastics and other industries.

 

Characteristics of White carbon black Hydrophilic precipitated silica powder silica pigment:

1. The specific surface area(BET) can reach 100-240 m2/g with good surface activity. For rubber and silicone products, high BET can enable the repeated fusion of rubber particles with silica, achieving reinforcement. Achieving ideal strength and transparency in natural rubber and synthetic rubber. Vulcanized rubber products containing white carbon black have excellent tensile strength, hardness, flexibility, resilience, tear resistance, wear resistance and aging resistance.

2. The oil absorption value is 1.5-3.5 cm3/g. The high oil absorption value of white carbon black represents a small structural degree. For products such as ink and coatings, it can play a thickening and extinction role, and for plastic, rubber, and silicone rubber products, it can improve the elongation and tensile strength.

3. Strong chemical stability. White carbon black is insoluble in water, alkaline solutions, and part of acidic solutions. It only soluble in hydrofluoric acid.

4. The structure of white carbon black is porous. It can be used as a carrier for products such as vitamins, powders, and powder fire extinguishing agents, making it easy to stock. It can also be used as a pore forming agent in special PE materials.

5. Strong high-temperature resistance. White carbon black can withstand high temperatures ranging from 1500 to 1600 degrees with low reduction in high-temperature burning.

 

What is Hydrated Silica?

Hydrated silica, also known as white carbon black, is mainly composed of silica, a white amorphous powder, light and loose, soluble in caustic soda and hydrofluoric acid, and insoluble in water, solvent and acid It is mainly used as light color reinforcing agent, lubricant and insulating material in rubber industry. It can be prepared by reacting dilute sodium silicate solution with dilute hydrochloric acid.

Item	Typical value	Testing Method
Silica content(based on ignited material) ,wt%	>99.8%	GB/T 20020
Specific surface area (BET), m2/g	200+-15	GB/T 20020
Carbon content(Based on drying at 105ºC for 2 hours) ,wt%	<0.15	GB/T 20020
PH-value in 4% dispersion	3.7-4.5	GB/T 20020
Moisture loss on drying 2 hour at 105ºC, wt%	<1.5	GB/T 20020
Ignition loss 2 hours at 1000ºC based on material dried for 2 hours at 105ºC, wt%	<2.0	GB/T 20020
Sieve residue(45um), wt%	<0.04	GB/T 20020
Tamped Density(Based on drying at 105ºC for 2 hours) ,g/L	40-60	GB/T 20020

Description
It is a kind of hydrophilic and high purity white colloidal powder. Due to its small particle size, specific surface area is big, therefore has excellent surface adsorption power, good dispersion performance, and good heat resistance, etc., With its excellent properties, it can be used as reinforcing filler in elastomers, excipient and carrier, rheology and thixotropic control of liquid systems, binders, polymers, etc. And used as anti-setting, thickening, anti-sagging agent, improvement of free flow and anti-caking characteristics of powders.

   Fumed silica is a very useful industrial chemical used in a variety of industrial and consumer products. Fumed silica poses a variety of health hazards to workers in various end-use industries and to those using products that use fumed silica. 
A. in various resin additives, medicine, food and other fileds.
B. rubber, sealant, silica gel, adhesive, tile grout etc.
C. paint, coating, UPR,
D. CMP suspension etc;
E. Digital photo paper etc.
(1).Paint and coating: as a hexagonal additive, it can effectively prevent pigment filler from settling and layering, improve the weather resistance, scratch resistance, sagging and leveling of the coating;
(2).Ink, air silicon has good thickening and sedimentation performance, which can adjust the viscosity of ink and prevent pigment sedimentation.;
(3).Resin, improve numerical thixotropy, make it have good tensile strength, bending resistance, milk, heat resistance and other properties;
(4).Chemical fertilizer plays the role of adsorption, moisture absorption and anti caking in powder fertilizer and suspension and anti sedimentation in liquid fertilizer;
(5).Thermal insulation materials, gas silicon has low thermal conductivity, which makes it have base thermal conductivity and excellent;
(6).Adhesive sealant can be used as thickener and thixotropic agent to increase bonding strength and prevent sagging and collapse during fixed line operation;
(7).Silicone rubber, air silicon is a very ideal reinforcing agent for silicone rubber, which can greatly improve its tensile strength and tear strength.;
(8).Food: gas silicon in powder food can improve fluidity, prevent powder agglomeration and carrier adsorption;
(9).Medicine: gas silicon can be used as anti caking agent, drug carrier and excipient of drugs, so as to prolong the efficacy;
(10).Toner: improve the fluidity, charge retention and environmental storage stability of toner, and improve the defects such as bottom ash and ghosting during printing;
(11).Catalyst carrier: gas silicon has good adsorption, dispersion and high purity, which can effectively improve the catalyst effect. It is an excellent catalyst carrier;
(12).Optical fiber: gas silicon has excellent thickening thixotropy, which can effectively improve the filling efficiency of optical fiber filling paste;
Fumed silica is a very useful industrial chemical used in a variety of industrial and consumer products. Fumed silica poses a variety of health hazards to workers in various end-use industries and to those using products that use fumed silica. 
A. in various resin additives, medicine, food and other fileds.
B. rubber, sealant, silica gel, adhesive, tile grout etc.
C. paint, coating, UPR,
D. CMP suspension etc;
E. Digital photo paper etc.
(1).Paint and coating: as a hexagonal additive, it can effectively prevent pigment filler from settling and layering, improve the weather resistance, scratch resistance, sagging and leveling of the coating;
(2).Ink, air silicon has good thickening and sedimentation performance, which can adjust the viscosity of ink and prevent pigment sedimentation.;
(3).Resin, improve numerical thixotropy, make it have good tensile strength, bending resistance, milk, heat resistance and other properties;
(4).Chemical fertilizer plays the role of adsorption, moisture absorption and anti caking in powder fertilizer and suspension and anti sedimentation in liquid fertilizer;
(5).Thermal insulation materials, gas silicon has low thermal conductivity, which makes it have base thermal conductivity and excellent;
(6).Adhesive sealant can be used as thickener and thixotropic agent to increase bonding strength and prevent sagging and collapse during fixed line operation;
(7).Silicone rubber, air silicon is a very ideal reinforcing agent for silicone rubber, which can greatly improve its tensile strength and tear strength.;
(8).Food: gas silicon in powder food can improve fluidity, prevent powder agglomeration and carrier adsorption;
(9).Medicine: gas silicon can be used as anti caking agent, drug carrier and excipient of drugs, so as to prolong the efficacy;
(10).Toner: improve the fluidity, charge retention and environmental storage stability of toner, and improve the defects such as bottom ash and ghosting during printing;
(11).Catalyst carrier: gas silicon has good adsorption, dispersion and high purity, which can effectively improve the catalyst effect. It is an excellent catalyst carrier;
(12).Optical fiber: gas silicon has excellent thickening thixotropy, which can effectively improve the filling efficiency of optical fiber filling paste;

(1) . Packing : 25kg net/bag, or customized package .
(2).  Loading quantity : 8MT/20'container
(3).  Loading quantity : 16MT/40'container
 

Henan Eastar Chem. & Tech. Co., Ltd. is a professional and comprehensive distributor of chemical products,such as Sodium Thiosulphate, Glycerol Monostearate, Sodium Diacetate, etc. Having been engaged in the international business for 20 years, we are fully experienced and have a perfect quality control system. With decades' of devotion to our work, our professional service has won a good reputation among our cooperating partners at home and abroad.
 

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