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Activated carbon typically removes impurities present in gases by adsorbing them onto the inner surface of its pores through intermolecular forces (van der Waals forces).
However, there are some impurities, such as hydrogen sulfide and ammonia, that cannot be adsorbed.
To adsorb these gases, impregnated activated carbon, which has chemical substances added to the activated carbon, is used.

  1.  Crushed activated carbon
 •  CGF-A 4x8 (coconut shell raw material)
  Impregnated activated carbon for acidic gases
=== Activated carbon analysis values ===
(The testing method conforms to JIS K-1474, the standard test method for activated carbon.)
  unit Standard value
Loss on drying % 5 or less
Bulk density
(packing density)
g/ml 0.4 - 0.6
Hydrogen sulfide adsorption amount % 24 or more
pH   9 or more
Particle size: 4x8 mesh % 95 or more
Hardness % 95 or more
Special charcoal 1
The packaging can be changed according to customer requests.

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 •  CGF-B 4x8 (coconut shell raw material)
  Impregnated activated carbon for basic gases
=== Activated carbon analysis values ===
(The testing method conforms to JIS K-1474, the standard test method for activated carbon.)
  unit Standard value
Loss on drying % 40 or less
Bulk density
(packing density)
g/ml 0.4 - 0.6
Ammonia adsorption amount % 7 or more
pH   2 or more
Particle size: 4x8 mesh % 95 or more
Hardness % 95 or more
Special charcoal 2
The packaging can be changed according to customer requests.

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 •  CGF-N 4x8 (coconut shell raw material)
  Impregnated activated carbon for neutral gases
=== Activated carbon analysis values ===
(The testing method conforms to JIS K-1474, the standard test method for activated carbon.)
  unit Standard value
Loss on drying % 10 or less
Bulk density
(packing density)
g/ml 0.4 - 0.6
Methyl sulfide adsorption capacity % 3.5 or more
pH   4 or more
Particle size: 4x8 mesh % 95 or more
Hardness % 95 or more
Special charcoal 3
The packaging can be changed according to customer requests.

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  2.  Pellet activated carbon
 •  GPS 4x6 pellets
  Impregnated activated carbon for acidic gases
=== Activated carbon analysis values ===
(The testing method conforms to JIS K-1474, the standard test method for activated carbon.)
  unit Standard value
Loss on drying % 15 or less
Bulk density
(packing density)
g/ml 0.4 - 0.6
Hydrogen sulfide adsorption amount % 24 or more
Pressure loss mmAq/m 150 or less
pH   7 or more
Particle size: 4 - 6 mesh
(3.35 - 4.75)
% 95 or more
Hardness % 95 or more
Special charcoal pellet 1
The packaging can be changed according to customer requests.

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 •  GPAL 4x6 pellets
  Impregnated activated carbon for basic gases
=== Activated carbon analysis values ===
(The testing method conforms to JIS K-1474, the standard test method for activated carbon.)
  unit Standard value
Loss on drying % 20 or less
Bulk density
(packing density)
g/l 0.4 - 0.6
Ammonia adsorption amount mg/g 7 or more
Pressure loss mmAq/m 150 or less
pH   4 or less
Particle size: 4 - 6 mesh
(3.35 - 4.75)
% 95 or more
Hardness % 95 or more
Special charcoal pellet 2
The packaging can be changed according to customer requests.

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 •  GPN 4x8 pellets
  Impregnated activated carbon for neutral gases
=== Activated carbon analysis values ===
(The testing method conforms to JIS K-1474, the standard test method for activated carbon.)
  unit Standard value
Loss on drying % 20 or less
Bulk density
(packing density)
g/ml 0.4 - 0.6
Methyl sulfide adsorption capacity % 4 or more
Pressure loss mmAq/m 150 or less
pH   4 or less
Particle size: 4 - 6 mesh
(3.35 - 4.75)
% 95 or more
Hardness % 95 or more
Special charcoal pellet 3
The packaging can be changed according to customer requests.

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