What will increase in boiler water due to an excessive amount of hydroxyl ions?

When there is an excessive amount of hydroxyl ions in boiler water, it results in an increase in alkalinity. Hydroxyl ions (OH-) contribute to higher pH levels, which indicates a more alkaline environment. In boiler systems, maintaining the correct pH is crucial to prevent corrosion and scaling, as well as to ensure efficient operation.

When alkalinity increases, it becomes important to monitor the boiler water closely, as extremes in pH levels can lead to various operational problems, including foaming and carryover. High alkalinity also heightens the risk of forming deposits that can impede heat transfer and lead to overheating of boiler components. Thus, understanding the role of hydroxyl ions helps in managing water chemistry effectively, particularly in preventing boiler-related issues.