Strontium hydroxide (Sr(OH)2), a versatile inorganic compound, stands as a cornerstone in numerous industrial applications due to its unique chemical and physical properties. This white, crystalline powder or colorless orthorhombic crystal is highly alkaline, making it a powerful base in various chemical processes.

Chemically, Strontium hydroxide can exist in several forms, including anhydrous (Sr(OH)2), monohydrate, and octahydrate (Sr(OH)2·8H2O). The anhydrous form has a molecular weight of 121.63 g/mol and a density of 3.625 g/cm3, with a melting point around 535°C, decomposing at 710°C. While generally considered slightly soluble in water, especially at lower temperatures (e.g., 0.90 g/100g at 0°C), its solubility significantly increases with rising temperature, becoming much more soluble in hot water. The octahydrate form is particularly noted for its higher solubility and is often the commercially supplied variant. Strontium hydroxide readily absorbs carbon dioxide from the air to form strontium carbonate, highlighting its hygroscopic and air-sensitive nature.

The preparation of Strontium hydroxide can be achieved through several methods. A common industrial approach involves treating strontium oxide (SrO) with water. Alternatively, it can be produced by heating strontium carbonate (SrCO3) or strontium sulfide (SrS) with steam at temperatures ranging from 500 to 600°C. Another practical method involves the addition of a strong base, such as sodium hydroxide (NaOH) or potassium hydroxide (KOH), to a soluble strontium salt solution, like strontium nitrate (Sr(NO3)2), which causes Strontium hydroxide to precipitate as a fine white powder, followed by filtration, washing, and drying.

The applications of Strontium hydroxide are broad and impactful across various sectors. Historically and presently, one of its most significant uses is in the refining of beet sugar, where it aids in the purification process by precipitating impurities. Beyond the sugar industry, it serves as a crucial stabilizer in the production of plastics, improving their durability and performance. It is also an essential component in manufacturing lubricant soaps and greases, enhancing their properties for high or low-temperature environments. Furthermore, Strontium hydroxide finds utility in the paint industry, where it improves the drying characteristics of oils and paints. In analytical chemistry, it is employed for pH control and in various precipitation reactions. Its strong basic properties also make it a valuable chemical catalyst in organic synthesis, such as in esterification and transesterification processes. In the cosmetics sector, particularly in depilatory hair removal products, Strontium hydroxide acts as a pH regulator. It can also be a source of strontium ions when the presence of chloride ions is undesirable.

For industries seeking a reliable manufacturer and supplier of high-quality Strontium hydroxide, NINGBO INNO PHARMCHEM CO.,LTD. offers a consistent and pure product tailored to specific application requirements. Understanding the importance of material integrity and performance, we ensure that our Strontium hydroxide meets stringent quality standards. When you are looking to buy Strontium hydroxide, considering factors like purity, consistency, and packaging options is crucial. We provide competitive price quotes and flexible solutions to meet diverse industrial demands. For more information or to inquire about purchase, connect with NINGBO INNO PHARMCHEM CO.,LTD.