Sodium Carbonate. Sodium carbonate is a sodium salt of carbonic acid and a strong base. It is supplied as a white, odorless powder that is hygroscopic and very soluble in water producing a strong alkaline solution.
1. to refrain from claiming or insisting on; forgo: to waive one's rank. 2. to relinquish (a right) intentionally: to waive an option. 3. to put aside, esp. for the time; defer or dispense with: to waive formalities. 4. to dismiss from consideration or discussion. [1250â1300; Middle English weyven < Anglo-French weyver to make a waif (of someone) by forsaking or outlawing (him or her)]
A waiver is the voluntary relinquishment or surrender of some known right or privilege. Regulatory agencies or governments may issue waivers to exempt companies from certain regulations. For example, a United States law restricted the size of banks, but when banks exceeded these sizes, they obtained waivers.n example of a written waiver is a disclaimer, which becomes a waiver when accepted. When the right to hold a person liable through a lawsuit is waived, the waiver may be called an exculpatory clause, liability waiver, legal release, or hold harmless clause.