Friedel's salt

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Friedel's salt

Names
IUPAC name Calcium chloroaluminate
Other names Friedel's salt Calcium aluminium chlorohydrate Calcium aluminium chlorohydroxide Calcium aluminium oxychloride
Identifiers
Properties
Chemical formula	Ca2Al(OH)6(Cl, OH) · 2 H2O
Appearance	White solid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Friedel's salt is an anion exchanger mineral belonging to the family of the layered double hydroxides (LDHs). It has affinity for anions as chloride and iodide and is capable of retaining them to a certain extent in its crystallographical structure.