substance

Potassium permanganate

Formula: KMnO4
CAS: 7722-64-7
InChIKey: VZJVWSHVAAUDKD-UHFFFAOYSA-N
ChEBI: CHEBI:231501

Show in the process graph →

Made by

Potassium permanganate from MnO2 ore by KOH roasting and electrolysis (1250 kg/h, concept)Main productConcept · not reviewed

Used by

No process in the Atlas uses this yet.

When a process with this chemical is added to the library, it appears here.

Takes part in

2K₂MnO₄+2H₂Ogives2KMnO₄+2KOH+H₂Product · Anodic oxidation of manganate to permanganate (overall cell reaction) · one process
4KMnO₄+4KOHgives4K₂MnO₄+O₂+2H₂OReactant · Reversion of recycled permanganate to manganate in the hot KOH melt · one process

Routes compared

One route in the Atlas makes Potassium permanganate: nothing to compare yet. A comparison appears when a second route is added.

Per 1 kg of Potassium permanganate: inventory from each route's LCI dataset, unallocated; footprints per the functional unit of their own LCA.

Route	Tier, design maturity, review status	Geography, year	Energy	Feedstocks	Key emissions	Footprint	Comparability
Potassium permanganate from MnO2 ore by KOH roasting and electrolysis (1250 kg/h, concept)MnO2 ore roasted with KOH and air in an indirectly fired kiln, leach with recycled mother liquor and lime, divided-membrane electrolysis of manganate, cooling crystallisation, centrifuge, steam dryer, double-effect KOH evaporator; 1250 kg/h KMnO4	flowsheet or hand-writtenDesign maturity: Concept (research)Not independently reviewedDataset review: unreviewed	GLO, 2026	Fired heat (natural gas, indirect firing of the roaster): 0.991 kWh LP steam 450 kPa(a) (condensate returned): 1.72 kWh Electric power (AC, grid): 0.696 kWh	Manganese ore (MnO2 concentrate) dried and ground: 0.787 kg Potassium hydroxide make-up (50 wt% solution): 0.92 kg Roaster air: 0.877 kg (free) Hydrated lime: 0.032 kg Process water: 1.31 kg	H2 to the environment: 0.00797 kg	no footprint	–

ISO 14044 requires a critical review (by a panel of interested parties, ISO/TS 14071) of a comparative assertion intended to be disclosed to the public. These routes are listed side by side for screening; a statement that one is better than another needs that review. None of these routes has had such a review.