For chemists, engineers, and product developers, a thorough understanding of a chemical compound’s synthesis and properties is fundamental to its effective application. Barium Chloride Dihydrate (CAS 10326-27-9) is an inorganic salt with well-defined characteristics that dictate its use in various industrial and laboratory settings. For those looking to buy Barium Chloride Dihydrate, knowledge of its origins and behavior is a significant advantage when selecting a Barium Chloride Dihydrate supplier.

Synthesis Methods of Barium Chloride Dihydrate

Barium Chloride Dihydrate is typically prepared through several established chemical pathways. A common industrial method involves the reaction of barium sulfide (BaS) with hydrochloric acid (HCl).

BaS(aq) + 2 HCl(aq) → BaCl₂(aq) + H₂S(g)

The resulting barium chloride solution is then purified, often through filtration and precipitation of impurities, followed by evaporation and crystallization to yield the dihydrate form (BaCl₂·2H₂O). Another common synthesis route involves the neutralization of barium hydroxide (Ba(OH)₂) or barium carbonate (BaCO₃) with hydrochloric acid:

Ba(OH)₂(aq) + 2 HCl(aq) → BaCl₂(aq) + 2 H₂O(l)

BaCO₃(s) + 2 HCl(aq) → BaCl₂(aq) + H₂O(l) + CO₂(g)

In both cases, the crystallization process from aqueous solutions typically results in the formation of the dihydrate, which precipitates as colorless rhomboidal crystals. For laboratories and industrial users, finding a reliable 'barium chloride dihydrate manufacturer' who employs controlled synthesis processes ensures consistent product quality.

Key Chemical and Physical Properties

Barium Chloride Dihydrate is characterized by its appearance as a white crystalline powder. It exhibits high solubility in water, a property that makes it highly versatile for aqueous applications, such as in water treatment or as a solution-based reagent. The molecular formula is BaCl₂·2H₂O, giving it a molecular weight of approximately 244.26 g/mol.

While the anhydrous form melts at a much higher temperature (around 962 °C), the dihydrate loses its water of crystallization upon heating. The apparent melting point reported for the dihydrate (around 113 °C) is due to this dehydration process. It is important for users to understand these thermal properties, especially if the compound will be subjected to elevated temperatures during processing.

Procurement and Applications

Professionals often search for 'barium chloride dihydrate supplier China' to access cost-effective, high-purity material. When looking to purchase Barium Chloride Dihydrate, understanding its synthesis helps in evaluating the potential for trace impurities. For applications requiring high purity, such as in analytical chemistry or sensitive manufacturing processes, sourcing from a reputable supplier who can provide detailed technical data and a Certificate of Analysis is essential. Comparing the 'barium chloride dihydrate price per kg' from various suppliers can also help in optimizing procurement budgets.

The compound's properties lend themselves to diverse applications, including its use in the production of pigments, as a mordant in textiles, in metal heat treatment, and crucially, as a reagent for testing sulfate ions in laboratories. Given its toxicity, always consult the Safety Data Sheet (SDS) provided by the supplier for safe handling and storage information.

By understanding the synthesis and properties of Barium Chloride Dihydrate, procurement managers and R&D scientists can make more informed decisions when sourcing this vital chemical compound.