公开(公告)号：US20200291335A1

公开(公告)日：2020-09-17

申请号：US16352171

申请日：2019-03-13

Applicant: AMERICAN STERILIZER COMPANY

Inventor： Thomas William SMITH ,  Nancy-Hope Elizabeth KAISER ,  Kathleen Ann FIX

IPC: C11D7/26 ,  C11D7/36 ,  C11D7/32 ,  C11D1/14 ,  C11D1/24

Abstract: A concentrate aqueous composition for removing Type I and Type III rouge from various stainless-steel items. The liquid composition comprises oxalic acid, a phosphonic acid, and various amines. The use of an amine has been found to provide synergistic results in removal of the noted types of corrosion from various stainless-steel items that include medical instruments, machines, equipment, pipes, tools, mixing and storage vessels, and the like.