Caring for metal objects - Preventive conservation,
Fatty acids can corrode metals; materials containing oils, fats and waxes in contact with copper-based metals will cause the development of green corrosion products (copper soaps; Figures 19 and 20). A common problem observed on museum objects made of copper and copper alloys is a characteristic pale green corrosion caused by the reaction between the metal and polish residues (Figure 39).Corrosion - Meaning, Definition, Types, Factors Affecting,,Here are some of the typical examples of corrosion as seen mostly in metals. 1. Copper Corrosion. When copper metal is exposed to the environment it reacts with the oxygen in the atmosphere to form copper (I) oxide which is red in colour. 2Cu (s) + ½ O 2(g) → Cu 2 O (s) Cu 2 O further gets oxidised to form CuO which is black in colour.Will Using Dissimilar Plumbing Pipe Metals Accelerate Pipe,,23-07-2020· There are three commonly used metals for potable water plumbing pipes, including stainless steel, copper, and brass. These metals are used because of their durability and long lifespans. However, mixing these metals is not generally advised due to the potential for sudden pipe corrosion and discolored water.