Origin	China
CAS No.	7631-86-9
Purity	99.8%

FUMED SILICA, SiO2, organic silica
Apperance: Superfine white powder
CAS: 7631-86-9
Assay: 99.8%
Packing: 10kg/bag

FUMED SILICA, SiO2, organic silica

Silicon Rubber: Improves silicon rubbers durability, rebound rate, and anti-distortion performance.

Plastics Industry: Improves plastic s tenacity, strength and prevents water absorption.

Coating Industry: Prevents agglomeration and drip. Thixotropic  additives. Increase denseness and smoothness of paint. 

Medicine Industry: Increase denseness ,floating , carrying function in medicine. It also can be used as the pesticide powder and anti-agglomeration.

Item	Index
	A-100	A-130	A-150	A-200	A-250	A-300	A-380	A-450
Apparent	White solid colloidal micro-particle
Specific surface, m2/g	100+/-15	130+/-15	150+/-15	200+/-25	250+/-25	300+/-30	380+/-30	450+/-30
pH value	3.6-4.3	3.6-4.3	3.6-4.3	3.6-4.3	3.6-4.3	3.6-4.3	3.6-4.3	3.6-4.3
Heating loss weight, %(m/m) ≤	1.5	1.0	1.0	2.0	2.0	2.0	2.5	2.5
Burning loss weight, %(m/m) ≤	1.0	1.0	1.0	2.0	2.0	2.0	2.0	2.0
Apparent density, g/l	30-60	30-60	30-60	30-60	30-60	30-60	30-60	30-60
mP.s	100-200	100-200	200-500	500-1000	700-1500	700-1500	1000-2000	1000-2000

Uses:

It is used widely in silicon rubber, construction sealant, coating, electron and electric, aerospace, medicine and medical material, resin processing, printing ink, pesticide and other industries.

A-100~150: Used widely in silicone acid rubber, sulfurized silicone rubber at ambient temperature

 (low moisture content ), silicone neutrl rubber.

A-200~300: Used mainly in sulphurized silicon rubber at high temperature, organic silicon

defoaming agent, high oil ink, power coating, powdered of flake preparation, cosmetics and so on.

A-380~450: Used mainly in high transparent and tear resistance silicon rubber, silicon ester, enclosed materials for capacitors and so on.

Packing: 10kg/bag

Store and Transport:

Placed in a vent and dry storehouse and prevented form humid, water, pressure and throwing during transport.