Certifications 2

SDS No.: 340209 V001.0 
Metylan Direct 
Page 5 of 9 
[SILICA, AMORPHOUS, TOTAL 
INHALABLE DUST] 
Silicon dioxide 
112926-00-8 
[SILICA, AMORPHOUS, RESPIRABLE 
DUST] 
2,4 
Time Weighted Average 
(TWA): 
IR_OEL 
Biological Exposure Indices: 
None 
8.2. Exposure controls: 
Respiratory protection: 
In case of dust formation, we recommend wearing of appropriate respiratory protection equipment with particle filter P (EN 
14387). 
 This recommendation should be matched to local conditions.  
Hand protection: 
Not needed. 
Eye protection: 
Not needed. 
SECTION 9: Physical and chemical properties 
9.1. Information on basic physical and chemical properties  
Appearance 
powder 
fine 
white 
Odor 
neutral 
Odour threshold 
No data available / Not applicable 
pH 
(20 °C (68 °F)) 
8,3 - 9,0 
Melting point 
No data available / Not applicable 
Solidification temperature 
No data available / Not applicable 
Initial boiling point 
No data available / Not applicable 
Flash point 
No data available / Not applicable 
Evaporation rate 
No data available / Not applicable 
Flammability 
No data available / Not applicable 
Explosive limits 
No data available / Not applicable 
Vapour pressure 
No data available / Not applicable 
Relative vapour density: 
No data available / Not applicable 
Density 
No data available / Not applicable 
Bulk density 
490 - 560 g/l 
Solubility 
No data available / Not applicable 
Solubility (qualitative) 
(23 °C (73.4 °F); Solvent: Water) 
Soluble 
Partition coefficient: n-octanol/water 
No data available / Not applicable 
Auto-ignition temperature 
No data available / Not applicable 
Decomposition temperature 
No data available / Not applicable 
Viscosity 
(Brookfield; 20 °C (68 °F); Solvent: Water 1 : 
20 ; Swell time: 30 min) 
10.000 - 15.000 mPa.s 
Viscosity (kinematic) 
No data available / Not applicable 
Explosive properties 
No data available / Not applicable 
Oxidising properties 
No data available / Not applicable 
9.2. Other information 
No data available / Not applicable 









