calcium chloride hydroxide

What is calcium chloride hydroxide

Calcium chloride hydroxide, often referred to as calcium hydroxychloride or simply hydrated lime, is a versatile chemical compound with the formula CaCl(OH). It is a white, crystalline solid that is highly soluble in water, making it an effective solution for various industrial, environmental, and commercial applications. Known for its hygroscopic properties, calcium chloride hydroxide is widely used as a drying agent, de-icer, and dust suppressant. It also plays a crucial role in water treatment processes, where it helps to adjust pH levels and remove impurities. Additionally, its antimicrobial properties make it valuable in food preservation and sanitation. This compound is a reliable and efficient choice for industries seeking effective chemical solutions.

Preparation Process: Calcium chloride hydroxide (CaClOH) can be prepared by reacting calcium hydroxide (Ca(OH)₂) with calcium chloride (CaCl₂) in an aqueous solution. Dissolve equimolar amounts of Ca(OH)₂ and CaCl₂ in distilled water under stirring at room temperature. Filter the suspension to remove any unreacted solids. Evaporate the filtrate slowly at 60–80°C to concentrate the solution, allowing CaClOH to crystallize. Alternatively, pass dry hydrogen chloride (HCl) gas over heated calcium oxide (CaO) or calcium hydroxide (Ca(OH)₂) to form CaClOH as an intermediate product. The compound can be purified by recrystallization from water or ethanol. Store in a dry environment to prevent hydrolysis.

Usage Scenarios: Calcium chloride hydroxide (CaClOH) is primarily used as a flocculant and coagulant in water treatment to remove impurities. It also serves as a drying agent in industrial processes due to its hygroscopic nature. In construction, it accelerates concrete setting and improves cold-weather curing. The compound acts as a de-icer for roads and sidewalks, lowering the freezing point of water. In food processing, it functions as a firming agent for canned vegetables and a stabilizer in dairy products. Additionally, it is employed in dust control on unpaved roads and as a pH adjuster in wastewater treatment. Its antimicrobial properties make it useful in disinfectants and preservatives.

calcium chloride hydroxide Basic Info

calcium chloride hydroxide Price