Barium hydroxide

Barium hydroxide (CAS 17194-00-2), also known as caustic baryta, is a strong inorganic base used across industrial processes requiring precise alkalinity control and barium ion delivery. Unlike general-purpose alkalis, it combines high basicity with reactivity toward sulfates and carbonates, making it the preferred choice where sodium or calcium hydroxides are unsuitable.

In water treatment, this compound precipitates sulfate and carbonate impurities from process streams, producing effluents that meet discharge specifications for environmental compliance. Plastics and polymer manufacturers use it as a catalyst and stabilizer precursor in PVC formulations, where it contributes to heat stability and flame retardancy performance.

In mining and metals processing, it conditions leach solutions and adjusts pH in barium-sensitive precipitation circuits to ensure high-quality mineral recovery and processing efficiency. Pulp and paper operations apply it in causticizing steps and as a pH regulator in specialty chemical recovery processes, ensuring consistent output in large-scale manufacturing environments.

The product is supplied as a white powder or as the octahydrate form, with the monohydrate and anhydrous grades also available depending on specific application requirements. Standard commercial grades include technical and reagent-grade specifications. Packaging typically ranges from 25 kg bags to bulk quantities, with purity levels commonly specified at 95–99%.