What is boric acid? Chemical Name: Boric acid CAS No.11113-50-1 Synonyms: Boric acid; borid acid; Borsrenatliche; Boric acid flake; boric acid chunks; Boric acid Joyce; Boric acid USP/EP/BP; BoricAcid(AS), Borofax; boric acid chunks BH3O3; High-Quality Boric acid