Used primarily to lower pH in swimming pools, spas, and industrial water systems. It is effective in controlling alkalinity and preventing scale formation in water treatment processes. Commonly used in cleaning products for toilets, drains, and dairy equipment due to its ability to remove mineral deposits. Also applied in the food industry as a pH adjuster in processing and in agriculture for soil amendment to reduce soil pH. Its stability and ease of handling make it a preferred choice over liquid acids in many applications.