silica absorption (IMAGE) Flinders University Caption Poly(S-r-limonene)-coated silica is a free flowing orange powder and fast acting mercury sorbent. 300 grams produced in a single batch pictured. Credit Flinders University Usage Restrictions use only with this release License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.