Potassium Tetracyanonickelate(II) Hydrate, with the chemical formula C4H2K2N4NiO, is an inorganic compound that holds significant interest due to its specific chemical structure and properties. A thorough understanding of these characteristics is fundamental for its effective utilization in various industrial applications and research endeavors.

Visually, Potassium Tetracyanonickelate(II) Hydrate is described as a light yellow to orange crystalline powder. This appearance is a key identifier for the compound. Its purity is also a critical parameter for its use, with specifications often requiring a minimum of 99.5%. High purity is essential, especially when the compound is used as a chemical precursor in sensitive processes like catalysis or in the precise manufacturing of advanced materials, such as diamagnetic alloys.

Chemically, the compound is characterized by the presence of nickel in the +2 oxidation state coordinated by four cyanide ligands. This tetracyanonickelate anion, [Ni(CN)4]²⁻, is responsible for many of its unique chemical behaviors. For instance, it acts as a crucial raw material in the synthesis of double metal catalysts, where the nickel center and the cyanide bridges play pivotal roles in the catalytic mechanism. This makes it a vital component for companies involved in chemical synthesis and catalyst development.

The compound's reactivity also warrants attention. While stable under recommended storage conditions (sealed in a cool and dry environment), it can react with acids to release toxic hydrogen cyanide gas, a characteristic property of many cyanide-containing compounds. This necessitates strict adherence to safety protocols when handling the material, including the use of appropriate personal protective equipment and working in well-ventilated areas. This safety consideration is paramount for any industrial or laboratory setting.

Furthermore, research is exploring its potential in electrochemistry, such as an electrode material for batteries. This application leverages the redox properties associated with the nickel center and the overall structure. For those seeking to buy this compound, understanding these physical and chemical properties, along with the necessary safety precautions, is crucial for successful implementation in their projects. Sourcing from reputable manufacturers ensures that the material meets the specified quality and safety standards.