Folded filter paper

Folded filter paper

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Credit: SCIENCE PHOTO LIBRARY

Caption: Filter papers. These are used to line a funnel to help remove solid particulates and chemical residues from solutions. Here the paper rounds have been pleated to make the conical shape. Requiring much more effort than the traditional quarter-fold method, the pleating allows the full surface of the filter to be used and is much more efficient.

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Keywords: chemical, chemistry, clean, cleaning, cone, conical, convenient, easy, efficiency, efficient, filter paper, fold, folded, funnel, laboratory, liner, open, papers, particulate, particulates, pleat, pleated, residue, round, school science, science education, screen, screening, semi-permeable, simple, white

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