What iodine value indicates
Iodine value is commonly used as an index of micropore development and is reported in milligrams of iodine adsorbed per gram of carbon under a specified test method.
Why a higher number is not always better
The target molecule may be larger than iodine, the process may be limited by contact time, or mechanical strength and pressure drop may matter more. Test method consistency is also essential when comparing data.
How to specify responsibly
State the applicable test method, minimum acceptable value, particle size, moisture, ash, hardness and the intended application. Where possible, confirm performance with a representative sample.
