General Carbon Corporation

GC 12×40 DC

Granular Activated Carbon for Decolorization and Food Grade Applications

GC 12 x 40DC is a reagglomerated activated carbon manufactured from a specially selected blend of coal and rinsed in demineralized water. Manufactured at an NSF/ANSI certified facility, it is suitable for drinking water and food grade applications. Its’ superior Iodine and Molasses Numbers make it especially attractive in decolorizing applications.

US Mesh Size: 12×40
Greater than 12 US Mesh, %: 5 (max)
Less than 40 US Mesh, %: 4 (max)
Effective Size: 0.5-0.75mm
Moisture, % (as packed): 2% (max) ASTM D2867
Iodine, mg/g: 1000 (min) ASTM D4607
Molasses Number: 210 (min)
BET Surface Area, m2/g: 1000 (min) N2 BET method
Hardness, %: 90 (min) ASTM D3802
Apparent Density, lbs./cu.ft: 31-34 ASTM D2854
g/cc: 0.48 – 0.54
pH: 8-10 ASTM D3838
Total Ash, %: 8 (max) ASTM D2866

*Standard packaging is in 25 or 500 kg. vinyl bags. Other packaging is available upon request.



Wet activated carbon removes oxygen from air causing a severe hazard to worker inside carbon vessels. Confined space/low oxygen procedures should be put in place before any entry is made. Such procedures should comply with all applicable Local, State and Federal guidelines.