- Florisil A Grade: Standard activation grade, activated at 650° C
- Florisil PR Grade: Pesticide residue analysis grade, activated at 675° C (**see note below)
Typical chemical composition of Florisil: MgO – 15.5%, SiO2 – 84.0%, Na2SO4 – 0.5%
* Inquire about other available grades, mesh sizes, and package sizes.
**Before shipment, each lot of the 60/100 Florisil PR grade is required to meet the performance characteristics as described in “Changes of Official Methods”, Journal of the A.O.A.C. Chapter 24.208(h), p.223, Vol. 49, Nov. 1, 1966.
* Florisil products are manufactured by U. S. Silica Co. Florisil is a registered trademark of U.S. Silica Co.