Ammonium hexafluorozirconate, with the chemical formula (NH4)2ZrF6, is a chemical compound composed of ammonium ions (NH4+) and hexafluorozirconate ions (ZrF6^2-). It is a white crystalline solid that is soluble in water.

Ammonium hexafluorozirconate has several key properties and uses:

1. Zirconium Source: It is used as a source of zirconium in various chemical reactions and processes.
2. Metal Surface Treatment: Ammonium hexafluorozirconate is used in metal surface treatment processes, particularly in the preparation of certain metals for coatings or further chemical reactions.
3. Glass Manufacturing: It is used in the glass industry for the manufacturing of certain types of glass.
4. Laboratory Reagent: Ammonium hexafluorozirconate is used as a laboratory reagent in certain chemical reactions and analyses.

Ammonium hexafluorozirconate is generally considered safe to handle under normal conditions. However, as with any chemical compound, it should be handled with care, and proper safety precautions should be followed to avoid unnecessary exposure.

As a source of zirconium, ammonium hexafluorozirconate is valuable in various chemical processes and applications where zirconium reactivity is needed. It finds use in metal surface treatment, glass manufacturing, and as a reagent in laboratory settings.