Zinc fluoride

Ball-and-stick model of zinc fluoride

Zinc fluoride is an inorganic chemical compound with the formula ZnF_. It is a white crystalline solid that is soluble in water. Zinc fluoride is used in various applications, including as a flux in the production of ceramics and glasses, and in the synthesis of other zinc compounds.

Structure

Zinc fluoride crystallizes in the rutile structure, similar to other metal fluorides such as magnesium fluoride (MgF_). In this structure, each zinc ion is surrounded by six fluoride ions in an octahedral geometry. The fluoride ions are each coordinated to three zinc ions.

Properties

Zinc fluoride is a white, odorless solid that is stable under normal conditions. It has a melting point of 872 °C and a boiling point of 1500 °C. The compound is slightly soluble in water, with a solubility of 0.057 g/100 mL at 20 °C.

Chemical Properties

Zinc fluoride is a relatively inert compound, but it can react with strong acids to form hydrofluoric acid (HF) and zinc salts. It does not react with oxygen or nitrogen at room temperature.

Applications

Zinc fluoride is used in the production of ceramics and glass, where it acts as a flux to lower the melting point of the raw materials. It is also used in the synthesis of other zinc compounds, such as zinc oxide and zinc chloride.

Safety

Zinc fluoride should be handled with care, as it can release toxic fluoride ions when it comes into contact with acids. Proper protective equipment, such as gloves and goggles, should be used when handling the compound.

Related Pages

• Zinc oxide
• Zinc chloride
• Magnesium fluoride
• Hydrofluoric acid