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.
The most common practical use for baking soda is as a leavening agent in baking. In combination with a liquid and an acid, it undergoes a chemical reaction that releases bubbles of carbon dioxide. Trapped in batter or dough, these carbon dioxide bubbles enable the baked good to rise.