Capabilities
Impregnation matrix
Physical adsorption alone will not hold ammonia, hydrogen sulfide, mercury or a chemical warfare agent. Impregnation puts a reactive chemistry into the pore structure so the carbon removes what it otherwise could not. This is which chemistry targets what, and which grade carries it.
| Impregnant | Targets | Grades |
|---|---|---|
| Alkaline / caustic | H₂S · acid gases · SO₂ · HCl | SURSORB ALKA · SURSORB P-ALKA · SURSORB PACO-2 |
| High-loading H₂S impregnation PAG-10 specified at 10% minimum | H₂S at high inlet concentration · odor control units | SURSORB PAG-10 · SURSORB PAG |
| Magnesium oxide (MgO) | H₂S · odor control | SURSORB MAG |
| Acid neutralizing GAM specified at 8–12% | Ammonia · amines · organic ammonia derivatives | SURSORB GAM · SURSORB PAM · SURSORB K |
| Sulfur-based (mercury) GG-Hg specified at 20% minimum mercury loading | Elemental and organic mercury — converted to mercuric sulfide and retained | SURSORB GG-Hg · SURSORB GP-Hg |
| Arsenic-reactive | Soluble arsenates · trialkylarsine | SURSORB As |
| Potassium iodide & TEDA | Radioactive methyl iodide · iodine-131 · nuclear-grade filtration | SURSORB NGC |
| ASZM-TEDA (Cu / Ag / Zn / Mo + triethylenediamine) Chromium-free. Unaged and aged breakthrough data published. | Chemical warfare agents · NBC/CBRN collective and personal protection | SURSORB CBRN+ (ASZM-TEDA) · SURSORB CBRN |
| Multi-impregnated (ABEK sets) | Organic and inorganic gases · SO₂ · ammonia — EN 14387 filter classes | SURSORB ABEK · SURSORB ABE · SURSORB A · SURSORB AX · SURSORB B · SURSORB E |
| Palladium (Pd) | Carbon monoxide — regenerable after adsorption | SURSORB PAL |
| Permanganate on activated alumina | H₂S · SO₂ · acid gases · clean room chemical filtration | SURSORB BAL · SURSORB BLEND |
| Reactive (formaldehyde) | Formaldehyde · mercaptans · ethylene | SURSORB FORM |
| Silver — bacteriostatic | Bacteriostatic control in liquid-phase industrial duty | SURSORB AQUA · SURSORB P-AQUA |
| Alkali (CO₂) | Carbon dioxide capture · confined and submerged environments | SURSORB PACO-2 · SURSORB PCO-2 |
Where the chemistry is not disclosed
Several datasheets in the range name an impregnation without naming the compound. That is a deliberate commercial position on some grades and a gap in the documentation on others, and we would rather say which than let you assume. If a bid requires the chemistry named, ask — we will either disclose it under NDA or tell you plainly that we will not.
Custom impregnation
The matrix above is what we hold as standard. Impregnating against a named contaminant that is not on it is routine work rather than an exception — our R&D team runs the formulation, our ISO/IEC 17025 laboratory tests it, and trial quantities from 1 to 10 tonnes are available for qualification before you commit to a container.