Ammonium perbromate is an inorganic chemical compound with the formula . It shares similar properties to ammonium perchlorate, but is substantially more difficult to isolate, and has a complex mechanism of decomposition.

Properties Ammonium perbromate is stable at room temperature, and has solubilities which are similar to ammonium perchlorate. Ammonium perbromate is much less hygroscopic in comparison to ammonium perchlorate, absorbing roughly as much water when maintained in an atmosphere with high humidity.

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