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AY5

A range of granular activated carbons manufactured from specially selected grades of coconut shells.

The material is manufactured under stringently controlled conditions by steam activation, to produce a porous adsorbent with a highly developed internal surface area.

Acid washing followed by neutralisation is then undertaken to remove soluble mineral constituents from the matrix of the activated carbon, producing an adsorbent of exceptional purity.

  • Washed adsorbent of exceptional purity
  • Stringently controlled particle size distribution
  • Excellent product hardness
  • Low soluble silica content
  • Supplied to BS EN ISO 9001:2008

Typical Properties

ParameterUnitValueMethod
Typecoconut shell
CTC%55ASTM D3467
Iodine numbermg/g1050ASTM D4607
Surface areamg/g1100BET N2
Moisture as packed%5ASTM D2867
Hardness%99ASTM D3802
Total ash%0.5ASTM D2866
Acid soluble matter%0.01ASTM D6385
Bulk densitykg m-3500-550ASTM D2854
Densitykg m-3435See note 1
pH aqueous extract6-8ASTM D3838
Mesh size US sieve :-8x3012x40
+8 (2.36mm)%5-
+12 (1.70mm)%Balance5
+20 (0.85mm)%BalanceBalance
-30 (0.60mm)%5Balance
-40 (0.425mm)%15
-50 (0.30mm)%Trace1
Effective sizemm0.80.6
* Density
The weight per unit volume on a dry basis of a bed of activated carbon that has beenbackwashed and drainedNote 1

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