The USDA Organic certification was a mandate from the Clinton administration to create a way for his constituents in the organic food space to market their product as distinct from conventional food. The USDA Organic certification was a mandate from the Clinton administration to create a way for his constituents in the organic food space to market their product as distinct from conventional food. (8) Sodium carbonate peroxyhydrate (CAS #-15630-89-4)—Federal law restricts the use of this substance in food crop production to approved food uses identified on the product label. (2) Aqueous potassium silicate (CAS #-1312-76-1)—the silica, used in the manufacture of potassium silicate, must be sourced from naturally occurring sand. (3) Boric acid—structural pest control, no direct contact with organic food or crops.