Trockenperlen WS (Sorbead WS) is a desiccant that exist out of porous silicium oxides. The material is not toxic, not corrosive or chemical inert except fot strong base. This material is mostly used on the inlet side of the compressed airdryers because it is not sensitive to moisture.  
Chemical composition:
Percent Material Chemical composition
Ca. 96,00% Silicium Oxide SiO2
Ca. 4,00% Aluminium Oxide Al2O3

 

Technical specification:

Bead size: Several sizes, but standard 2-5mm
Bulk density: 0,65kg/L
Specific surface: 650m2/gram
Regeneration temperature: 120-150°C
Standard packaging: 130kg - 750kg

Special:

Not sensitive for 100% moisture. Very suitable in combination with Sorbead N in a proportion of 20% WS and 80% N.
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