Used as a catalyst precursor in organic synthesis, textile dyeing, and as a trace nutrient in fertilizers and animal feed. In the laboratory, it serves as a reagent for analytical chemistry and electroplating baths.

Harmful if ingested or inhaled; prolonged exposure can lead to manganese accumulation. Handle with gloves and respiratory protection.

Supplied in 25 kg PE-lined paper bags or drums. Store cool, dry, and sealed to prevent deliquescence.