Manganese(II) perchlorate

Manganese(II) perchlorate is an inorganic chemical compound with the formula Mn(ClO4)2.

It forms a white-colored anhydrous and a rose-colored hexahydrate, both of which are hygroscopic.

The hexahydrate does not dehydrate when heating but instead oxidizes to manganese dioxide at 150 °C.

[4][2] To produce the anhydrous form, manganese(II) nitrate is reacted with dichlorine hexoxide at 5 °C:[3] The resulting nitryl salt is subsequently heated at 105 °C in a vacuum to produce the anhydrous perchlorate.

The hexahydrate undergoes phase transitions at low temperatures.

NFPA 704 four-colored diamond Health 1: Exposure would cause irritation but only minor residual injury. E.g. turpentine Flammability 0: Will not burn. E.g. water Instability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorus Special hazard OX: Oxidizer. E.g. potassium perchlorate