公开(公告)号：US11008536B2

公开(公告)日：2021-05-18

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: C11D1/14 ,  C11D3/36 ,  C11D3/30 ,  C11D7/26 ,  C11D7/36 ,  C11D1/24 ,  C11D7/32 ,  C11D1/22 ,  C11D3/33 ,  C11D3/20

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.