Scientific Literature Here you find summaries of scientific publications and links which are valuable to get a deeper insight into safety of silica from Evonik. Review article summarizing available literature on the safety of Synthetic Amorphous Silica (SAS) as food additive E 551 more Recent evaluation of the safety of Synthetic Amorphous Silica (SAS) as food additive (E 551) by the European Foos Safety Authority (EFSA) more Review article summarizing and critically evaluating results from numerous toxicological studies on nanomaterials more Critical evaluation of a previous animal feeding study with SAS more Toxicological study on the effect of long term inhalation of Synthetic Amorphous Silica (SAS) more Study on solubility and biopersistance of SAS more