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Table 2 Surface area and pore volumes derived from nitrogen adsorption data for the raw, leached materials, final products and standard sample

From: Comparison between leached metakaolin and leached diatomaceous earth as raw materials for the synthesis of ZSM-5

Sample BET surface area (m2/g) Total pore volume (cm3/g) Micropore volume (cm3/g)
Kaolin 12 0.058 0.004
Leached metakaolin 288 0.24 0.089
Diatomaceous earth 38 0.093 0.003
Leached diatomaceous earth 55 0.11 0.006
ZSM-5 (K) 255 (82%) 0.17 0.082 (68%)
ZSM-5 (D) 298 (96%) 0.15 0.098 (82%)
ZSM-5 standard 310 0.15 0.12