Activated carbon pre-filters are most common in water purifiers. Large internal surface area of activated carbon makes it a very good adsorbent for many contaminants in drinking water. The sources of activated carbon are mostly, coal (anthracite, bituminous, lignite), coconut shells, peat and petroleum based residues.

Coconut shell carbon has mainly micro-pores to meso-pores and due to its unique distribution of pore diameter, coconut shell activated carbons are very popular in the gas phase purification and potable water purification industries.

Iodine (mg/g) Minimum 800/850/900/950/1000/1050/1100/1150/ 1200/1250/1300

Surface Area (m2/g) 850-1350

Apparent Density (g/cc) 0.40-0.54

Hardness (%) Minimum 95 / 96 / 97 / 98 / 99

Ash Content (%) Maximum 5

Moisture (%) Maximum 5

pH 9.5 - 11

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