1、 Iodine value: Iodine value is Activated carbon The iodine value of fruit shell, bamboo charcoal and coal is several hundred, and the iodine value of activated carbon raw material ranges from 80085090095010001100mg/g, and the adsorption capacity is also different! Also different! Activated carbon with the same iodine value has only the effect of coconut shell.
2、 Weighing by hand: As mentioned above, in order to improve the adsorption performance of activated carbon, we must make as many pore structures on activated carbon as possible. The more pores, the looser the activated carbon, and the lighter the relative density. Therefore, a good activated carbon will feel lighter. Under the same weight packaging, The volume of activated carbon with good performance will be much larger than that of low-quality activated carbon.
3、 Look at the bubbles: put a small handful of activated carbon into water. Due to the permeation of water, the water will gradually immerse into the pore structure of activated carbon, forcing the air in the pores to be discharged, thus generating a series of very small bubbles. Pull out a small bubble line in the water, and at the same time, it will emit a faint bubble sound, which is very interesting. The more intense this phenomenon occurs and the longer it lasts, the better the adsorption of activated carbon will be.
4、 See decolorization ability: activated carbon adsorption Another performance of the ability is the decolorization ability. Activated carbon has the magical ability to turn colored liquid into light color or colorless, which is actually caused by the adsorption of pigment molecules in colored liquid by activated carbon. >>More
5、 Important note: At present, consumers do not know enough about activated carbon, and often mistake activated bamboo charcoal, charcoal, coconut shell charcoal and other carbonized materials for activated carbon; Secondly, the carbon carving and ordinary activated carbon with low absorption value are regarded as high-quality activated carbon. So please distinguish when you choose and buy, and do not be deceived.
