Vapacid - Activated carbon for acid gases

Mostly microporous granular activated carbon

Chemically treated to chemisorb acid gases.

Product images are illustrative and may vary from the physical product.

Granular activated carbon for acid gases

Raw material: Coconut shell
Particle size range (mesh): 4 × 10, 8 × 14, 14 × 30, or 4mm Pellet.
Presentation: 25 kg bags, 100 kg containers

Some applications:

  • Cartridge respirators (masks)
  • Drainage odors
  • Desulfurization of biogas and natural gas.
  • Air treatment in spaces where it is required to avoid corrosion caused by acid gases
  • Control in electronic component production areas

The Vapacid type activated carbon is manufactured from coconut shell and is impregnated with metal oxides that give it a high capacity for the elimination of acid gases and vapors present in air. These acids can be organic, such as acetic acid or mercaptans, or inorganic, such as sulfur dioxide and sulfuric, nitric, hydrochloric, and phosphoric acids.

In the case of hydrogen sulfide removal, Vapacid catalyzes the H2S - oxygen reaction:

2 H2S + O2 = S8 + 2 H2O

Unlike other impregnated carbons, Vapacid minimizes the formation of sulfuric acid by inhibiting the side reactions that produce it.

VAPACID adsorbs more than twice as many mercaptans as non-impregnated carbon, as it oxidizes them to disulfides
(2 RSH R2S2), which on the one hand are less odorous, and on the other, they are more easily adsorbable.

Among the main applications of this product are: odor control in drain vents (called
ports) and in wastewater treatment plants; corrosion control and component protection
electronics in harsh industrial environments; environmental control in museums or in manufacturing areas of
specialties, such as computer chips or pharmaceuticals; environmental control in processes
that use mineral acids.


- All types of acid gases and vapors.
- All types of organic vapors (although with less capacity than a non-impregnated carbon).
Compound with which it is suggested to do organoleptic tests:
- Hydrogen sulfide (in the gas phase it is called hydrogen sulfide: H2S: It is the typical rotten egg smell. It is produced by reacting ferrous sulfide with sulfuric acid).
Like all inorganic acids, it is a toxic compound, so it must be handled with care and in low concentrations.
Among acid vapors and gases, those mainly found in industry, commerce and society are:

Acetic acid
Acrylic acid
Adipic acid
Benzoic acid
Hydrobromic acid (HBr)
Butyric acid
Caprylic acid
Caproic acid
Carbolic acid (carbolic acid, phenol)
Cyclohexanecarboxylic acid
Hydrochloric acid (HCl) (also called muriatic acid)
Stearic acid
Ethyldimethylacetic acid
Phenylacetic acid
Hydrofluoric acid (HF)
Formic acid
Phosphoric acid (H3PO4)
Isobutyric acid
Lactic acid
Lauric acid
Linoleic acid
Linolenic acid
Myristic acid
Nitric acid (HNO3)
Oleic acid
Palmitic acid
Perchloric acid
Propionic acid
Hydrogen sulfide (H2S) (is the typical rotten egg smell)
Sulfuric acid (H2SO4)
M-toluic acid
O-toluic acid
P-toluic acid
Uric acid
Valerianic acid
Valeric acid
Hydroiodic acid (HI)
Hydrogen bromide (is the correct name for hydrobromic acid in the gas phase)
Hydrogen chloride (this is the correct name for hydrochloric acid in the gas phase)
Sulfur dioxide (SO2)
Chlorine dioxide (ClO2)
Phenol (carbolic acid, carbolic acid)
Hydrogen sulfide (is the correct name for hydrogen sulfide in the gas phase)
Hydrogen iodide (is the correct name for hydroiodic acid in gas phase)

Retaining compounds 

Data sheet


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