|H290 May be corrosive to metals.|
|H319 Causes serious eye irritation.|
|P280 Wear protective gloves/ protective clothing/ eye protection/ face protection.|
|P264 Wash hands thoroughly after handling|
|P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.|
Used in water purification, this compound is preferred in some cases because of its high charge, which makes it effective at destablizing and removing suspended materials.