Wash bottles, fritted-disk

Wet and redistribute the Celite bed in a previously prepared and tared filtering crucible, using 15 mL of 78% ethanol to wash the sides of the crucible. Apply suction to draw the Celite onto the fritted disk as an even mat. Filter an alcohol-treated sample though the crucible, quantitatively transferring all particles to the crucible with the help of a spatula and a wash bottle containing 78% ethanol. If a gum forms, break the film with the spatula. 

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