- Manganic acid (H2MnO4), dipotassium salt
- Potassium manganese oxide
- Dipotassium manganate
- Potassium manganate(VI)
Dark green powder.
Registry Numbers and Inventories.
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Solubility in water
Hazards and Protection.
Keep container tightly sealed.Store in cool, dry conditions in well sealed containers.
Protective work clothing. Chemical protective gloves. Safety glasses or goggles.
Pick up mechanically.
Decomposition will not occur if used and stored according to specifications.
Reducing agents, easily oxidized materials, organic materials, flammable substances.
Metal oxide fumes.
Extinguish with carbon dioxide, extinguishing powder or water spray. Fight larger fires with water spray or alcohol resistant foam. Wear self-contained respirator. Wear fully protective impervious suit.
This substance is an oxidizer and its heat of reaction with reducing agents or combustibles may cause ignition.
NIOSH PEL: 5 mg/m3 (as Mn fume)
Chronic exposure to manganese may cause impairment to the central nervous system. Symptoms include sluggishness, sleepiness, muscle weakness, loss of facial muscle control, edema, emotional disturbances, spastic gait and falling. Chronic manganese poisoning may develop after as little as three months of heavy exposure but usually cases develop after one to three years of exposure.
Seek medical treatment.
Supply fresh air. If required, provide artificial respiration. Keep patient warm. Seek immediate medical advice.
Immediately wash with water and soap and rinse thoroughly. Seek immediate medical advice.
Rinse opened eye for several minutes under running water. Then consult a doctor.