Activated carbon impregnated with sodium permanganate: Applications and benefits
Introduction
Activated carbon impregnated with sodium permanganate has become a key solution in the filtration of toxic gases and volatile organic pollutants (VOCs). Its ability to oxidize hazardous molecules makes it ideal for industrial, healthcare and food preservation applications.
In Mexico, potassium permanganate has been restricted because of its use in the manufacture of illicit drugs, which has prompted the adoption of sodium permanganate as an efficient and safe alternative.
In the following, we will explore its main applications and advantages.
What is activated carbon impregnated with sodium permanganate?
Activated carbon is a highly porous material used in the adsorption of gases and organic compounds of low molecular weight, which a standard activated carbon does not adsorb. When impregnated with sodium permanganate (NaMnO₄), its oxidation capacity improves, allowing it to efficiently remove undesirable substances such as:
- Volatile organic compounds (VOCs) such as formaldehyde and isopropyl alcohol.
- Gas contaminants in vents and enclosed spaces.
- Ethylene, delaying the ripening of stored fruits.
Main applications activated carbon impregnated with sodium permanganate
1️⃣ Respirators and cartridge masks
Activated carbon impregnated with sodium permanganate is used in industrial face masks and respiratory protection systems to remove harmful gases in:
✅ Chemical laboratories.
✅ Areas of focus: alcohols, alkenes.
✅ Factories with exposure to organic gases.
Key Fact: Potassium permanganate was previously used in Mexico, but its regulation led to the adoption of sodium permanganate, which maintains the same efficacy without legal restrictions.
2️⃣ Treatment of gaseous pollutants in enclosed spaces
In ventilation and air treatment systems, activated carbon with sodium permanganate is used to capture and remove
✅ Formaldehyde (present in furniture, adhesives and construction materials).
✅ Isopropyl alcohol and solvents.
✅ Odors in hospitals and laboratories.
Example: In hospitals and clinics, it is used to prevent exposure of patients and workers to noxious gases.
3️⃣ Warehouse purification and distribution of fresh fruits and foods
Gases such as ethylene accelerate ripening of fruits and vegetables in storage and transport. Activated carbon impregnated with sodium permanganate helps to absorb ethylene, prolonging the shelf life of foods.
Benefits:
✅ Avoids premature ripening in cold storage.
✅ Reduces food waste.
✅ Improves quality in the distribution of fresh products.
Example: Food logistics companies use it in refrigerated containers to avoid overexposure to ethylene.
Sodium permanganate vs. potassium permanganate: Differences and regulation
Until a few years ago, potassium permanganate was used in Mexico for the impregnation of activated carbon. However, due to its use in the manufacture of illicit drugs, it was classified as a controlled precursor chemical, limiting its commercialization and use.
Why is sodium permanganate used now?
✅ Same oxidation capacity.
✅ It is not subject to legal restrictions in Mexico.
✅ Safe and effective in industrial and commercial applications.
Carvapox: Carbotecnia’s Solution
At Carbotecnia, the Carvapox product is an effective alternative based on activated carbon impregnated with sodium permanganate, designed for:
- Air purification in industrial spaces.
- Filtration in respirators and masks.
- Protection of stored food.
? For more information, see Carvapox at Carbotecnia.
How can we help you?
Activated carbon impregnated with sodium permanganate is a key solution in the control of gaseous contaminants, respiratory protection and food preservation. In Mexico, it has replaced potassium permanganate due to its regulation, maintaining the same efficiency without legal restrictions. Contact us for advice on the choice and application of the right activated carbon for your processes.
