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Colloidal silicas are suspensions of fine amorphous, nonporous, and typically spherical silica particles in a liquid phase.
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xhq57: ½ð±Ò+1, ¡ïÓаïÖú 2012-08-08 22:06:57
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2Â¥: Originally posted by semi-white at 2012-08-07 16:45:43
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3Â¥: Originally posted by ½¯ÇàËÉ at 2012-08-07 21:28:08
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