EVONIK CORPORATION › SIPERNAT® 22 S SIPERNAT® 22 S $0.00 SIPERNAT® 22 S is a silica with a high absorption capacity. It is used as a flow and anticaking agent. Quantity: Add To Cart Added! SIPERNAT® 22 S is a silica with a high absorption capacity. It is used as a flow and anticaking agent. You Might Also Like SIPERNAT® 350 SIPERNAT® 50 SIPERNAT® 22 SIPERNAT® D 13 SIPERNAT® 35