GRACEDavison 



 SYLOID ? C 809 Products 

 Extinction powder 



 1) Introduction 

 SYLOID ? C 809 is an amorphous silicon dioxide, a white powder, freely flow. 



 2) product specifications 



 Indicators of the nature of unit testing methods 

 Moisture (160 ℃)% maximum 3.5 GRACE Q 05 

 Average particle size (Malvern assay) μm 8.4 - 9.6 GRACE Q 13 

 pH (5% water suspension) 2.9 - 3.7 GRACE Q 14 



 3) Typical Properties 

 The following is a typical product properties, does not mean that product index 



 Properties Unit Typical Value Test Method 

 The total volatile (950 ℃)% maximum 8.0 GRACE Q 07 

 Silica content% 99.4 DIN 55921 

 Porosity (N2) ml / g 2.0 GRACE ASC 840 

 Oil absorption g/100g 300 GRACE Q015 



 4) The main performance and application recommendations 

 SYLOID ? C 809 is a table has not been