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. 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® 340 SIPERNAT® 820 A SPHERILEX DP 0112 SIPERNAT® 50 SIPERNAT® 500 LS