Food Grade Silicon Dioxide Precipitated Silica Gaseous Silica/Fumed Sio2

• Customization: Available
• CAS No.: 7631-86-9
• Formula: Sio2
• Model NO.: Silicon Dioxide
• EINECS: 215-683-2;238-878-4;262-373-8;231-545-4
• Classification: Silicon Dioxide
• Grade Standard: Food Grade
• Kind: Acidic Oxide
• Quality: Special Class
• CAS No: 7631-86-9
• Other Names: White Carbon Black
• Mf: Sio2
• Purity: 99.9
• Color: White
• Appearance: White Powder
• Specific Surface Area(M2/G): 240
• Volume Density(g/cm3): 0.063
• Density(g/cm3): 2.2-2.6
• Transport Package: 25kg/Bag
• Specification: Fumed Silica Precipitated Silica
• Trademark: HBCS
• Origin: Hebei
• Production Capacity: 5000000 Ton/Year

Product Description

Food Grade Silicon Dioxide Precipitated Silica |Gaseous silica/Fumed SiO2
 

Item	UnIt	HBCS-214
Appearance		White power
SiO2 content	%	>=99
BET	m2/g	191-220
Heating loss (105ºC.2h)	%	<=6.5
Ignition  loss (105ºC,2h)	%	<=6.0
PH value		6.0-8.0
DBP absorption value	ml/g	2.0-3.0
Pour desity	g/m3	0.2-0.26
From the slouble salt solution( By Na2So4)	%	<=2.5
Particle size	um	60-150
Heavy metals (Pb) content	mg/kg	<=30
Total lead content	mg/kg	<=5
Total as content	mg/kg	<=3
Total Cd content	mg/kg	<=0.5

 

Application of Silicon Dioxide

1, Rubber modified, sealant ceramic toughening modification, adhesives, functional fiber additive, plastic modification, paint aging additives;
2, Ceramics, nano ceramic, composite ceramic substrate;
3, Polymer: can increase the thermal stability and anti-aging polymer;
4, Flame retardant materials and coatings, high grinding medium, cosmetic products;
5, In cluster butyl benzene and chlorinated polyethylene adding a small amount of nano SiO₂produce color rubber tenacity, elongation, strength, flexural performance and ultraviolet resistance and thermal aging performance and achieve or exceed epdm;
6, In traditional coating adding a small amount of nano silicon oxides, good solve the suspension stability, thixotropy and poor, poor finish.

 

Characteristics of Silicon Dioxide:

1) White dispersed powder

2) Can be dissolved by NaOH and HF, but cannot be dissolved by other kinds of acid, water and solvents

3) It has a good performance

4) With resistance to higher temperature

5) Will not combust and has good isolation