Character: Precipitated silica used for extinction agent can change coating's optical property and notable reduce gloss. It has the characteristics of good dispersion and suspension. No sediment forms in the process of storing.
Uses: Used for coating, printing ink, painting and paper making industries.
CAS: 112926-00-8 (7631-86-9)    EINECS: 231-545-4

Technical parameter

Type	TOND-400	TOND-500
Appearance	White Powder
Heating loss (105°C) %	4.0-5.0	4.0-5.0
Ignition loss (1000±25°C) %	3.5-4.5	3.5-4.5
SiO2 Content %	≥98.0	≥98.5
PH	6.5-7.5	6.5-7.5
DBP Absorption cm3/g	2.8-3.5	2.8-3.5
45μm Sieve residue %	≤0.02	≤0.015
BET Specific surface area m2/g	210-240	210-240
Na2SO4 %	≤0.5	≤0.5
Parpicle size d50 μm	5.0-7.0	5.0-7.0