Electrical Receptacles and switches marked COALR, CO/ALR, AL-CU or CU-AL or CU-Only (photo above right) have not been recommended by the US CPSC for aluminum wiring repairs.However COALR or CO/ALR-marked devices are not and should not be treated identically with electrical devices marked CU-AL or AL-CU.lectrical Receptacles and switches marked COALR, CO/ALR, AL-CU or CU-AL or CU-Only (photo above right) have not been recommended by the US CPSC for aluminum wiring repairs.
Baking soda, also called sodium bicarbonate, is a common baking ingredient, cleaner, deodorizer and pH regulator. It is commonly sold as a white powder that looks similar to baking powder. Unlike baking powder, which contains acidic ingredients, however, baking soda is a single compound composed of only four elements: sodium, hydrogen, carbon and oxygen. Sodium Sodium is an alkali metal that bonds readily with other elements or ions.
Baking soda is comprised of sodium bicarbonate, a chemical with a basic (high) pH. This high pH allows baking soda to react with other foods in special ways. For example, when baking soda is mixed with an acid (low pH), they'll instantly react to produce carbon dioxide (CO2) gas.