Activated Carbon Chemical Filters
Potassium Iodide Impregnated Coconut Shell Activated Carbon BS-GACKI5
Product Overview
Coconut shell granular activated carbon impregnated with potassium iodide to ≥ 5%, on a base carbon of CTC ≥ 60%. The KI provides an iodine source at the carbon surface, giving specific chemical capture of hydrogen sulphide, mercury vapour and iodine compounds — the media type commonly used in iodine adsorbers and odour-control beds. 30–60 mesh, supplied in 25 kg woven bags or on 500 kg fumigated wooden pallets.
Features & Specifications
| Item | Unit | Specification | Test Method |
|---|---|---|---|
| Particle Size | mesh | 30–60 | ASTM |
| CTC Adsorption | % | ≥ 60 | ASTM |
| Moisture Content (after impregnation) | % | ≤ 15 | ASTM |
| Ash Content (after impregnation) | % | ≤ 10 | ASTM |
| KI Content (after impregnation) | % | ≥ 5 | ASTM |
Detailed Description
Key Features
- Potassium iodide impregnation ≥ 5%: a higher KI loading than general desulphurisation grades. The KI provides an iodine source at the carbon surface, giving specific chemical capture of hydrogen sulphide, mercury vapour and iodine compounds - Base carbon CTC ≥ 60%: the untreated base carbon meets its adsorption target first, so enough physical adsorption capacity remains after impregnation to handle organic components in a mixed gas stream - Granular, 30–60 mesh: suited to fixed-bed filling, balancing pressure drop against adsorption rate - Two pack sizes: 25 kg woven bags for laboratories and small beds where material is drawn in small quantities; bulk supply on 500 kg fumigated wooden pallets, meeting export phytosanitary requirements for wood packagingApplications
- Hydrogen sulphide removal: wastewater treatment, biogas pre-treatment, landfill gas - Mercury vapour capture: KI fixes mercury as mercuric iodide — used on coal-fired exhaust, in mercury recovery and for laboratory mercury vapour control - Radioiodine capture: the media type commonly used in iodine adsorbers at nuclear plants and radioisotope facilities - Sulphur-bearing gases in semiconductor process exhaustHandling Notes
- Nuclear-grade service requires separate qualification. An iodine adsorber destined for a nuclear safety-related system must be tested for methyl iodide (CH₃I) penetration to ASTM D3803, with acceptance criteria set for the site's temperature and humidity conditions. This grade is a general industrial specification — tell us the intended duty when enquiring so we can confirm suitability - Moisture of ≤ 15% after impregnation is normal. Water is required for the chemical reaction; do not dry the carbon - Chemisorption is irreversible. A spent bed is replaced as a whole and cannot be reactivated the way physically adsorbing carbon can - Do not store alongside strong oxidising agents. Keep the storage area cool and ventilated and away from ignition sourcesPackaging & Chemical Registration
| Item | Details |
|---|---|
| Packaging | 25 kg per PP woven bag; 500 kg per fumigated wooden pallet |
| Chemical Name | Activated Carbon |
| CAS No. | 7440-44-0 |
| HS Code | 3802.10.00 |
Selection References
Before ordering, verify the efficiency grade, media type, and whether the operating environment fits your requirements.
