What is High Specific Surface Area Calcium Hydroxide

High specific surface area calcium hydroxide is a special form of calcium hydroxide (chemical formula: Ca(OH)₂, commonly known as "slaked lime" or "hydrated lime"). Its core feature is a specific surface area far higher than that of ordinary calcium hydroxide, which endows it with excellent properties such as stronger reaction activity and adsorption capacity. It is widely used in environmental protection fields such as flue gas desulfurization.

The specific surface area of ordinary calcium hydroxide is usually low, generally ranging from 1 to 10 m²/g. Its particle morphology is relatively dense with strong agglomeration, resulting in a small surface contact area. In contrast, the specific surface area of high specific surface area calcium hydroxide (high specific surface area Ca(OH)₂) is typically between 38 and 40 m²/g, and its particles are finer with more abundant pores. The performance advantages of high specific surface area calcium hydroxide are particularly prominent in the field of environmental protection. Today’s industrial processes, efficiency and environmental responsibility go hand in hand. One advanced material making a real difference is high specific surface area calcium hydroxide [Ca(OH)₂], which offers superior performance in gas treatment and neutralization applications.

High specific surface calcium hydroxide is widely used for flue gas desulfurization in steel plants, power plants, and other industries. It provides faster reaction kinetics and greater absorption efficiency in removing SO₂ from flue gases. Its porous structure allows more contact between reactive sites and pollutants, reducing sorbent consumption and lowering operational costs. This contributes directly to cleaner air and compliance with increasingly strict environmental regulations.