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In 2023–2024, China and the United States were the leading exporters of calcium hydroxide, while India, Vietnam, and Mexico emerged as top importers, reflecting strong demand in construction, water treatment, and agriculture sectors. Calcium hydroxide prices remained relatively stable amid steady bilateral trade flows, with minor regional fluctuations tied to logistics and regulatory compliance costs. Export volumes from China increased modestly year-on-year, while U.S. exports held steady, and Indian imports grew notably—indicating expanding industrial end-use applications across South and Southeast Asia.
Calcium hydroxide is a white, odorless, crystalline powder or granular solid with low volatility and a melting point of approximately 580 °C (decomposes before boiling). It is an inorganic compound—specifically, a strong base and alkaline earth metal hydroxide. Industrially, it serves as a key intermediate in the production of calcium salts, bleaching powder, and sodium hydroxide via the lime-soda process. Its primary applications include water and wastewater treatment (for pH adjustment and heavy metal precipitation), construction (as slaked lime in mortars, plasters, and stuccos), and the food industry (as a pH regulator and fortifying agent). It is also used in flue gas desulfurization and as a precursor in the manufacture of various calcium-based chemicals for agrochemicals and pharmaceuticals.
In the manufacture of mortar, plaster, whitewash, and paper pulp; in lubricants; in drilling fluids
Calcium hydroxide is a soft white crystalline, odorless powder with an alkaline, bitter taste.
This chemical is included in Basic Chemicals. See more about what is Calcium hydroxide and Calcium hydroxide SDS information.
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