Inserting a Wire Through a Cork or Rubber Stopper

Inserting a Wire Through a Cork or Rubber Stopper

Push the

comptetely through the cork Or

I t is easy to draw a wire through a cork or rubber stopper by using a syringe needle, as illustrated here. First, obtain a syringe needle that is long enough to pass all the way through the eork or stopper. Second, make sure the w u e e of the needle is lareer than that of the wire vou wish to insert (e.g.,in ?&gauge needle a n d - ~ z - ~ a uwire): ~ e in oth& words, the wire must fit into the barrel of the needle. I'wh rhc needle thn,ugh the tap of I hr rork or stopper until thc end pokes through the bottwn. Suck the wire as fnr into the needle a it can go. Hold the end of the wire in plncc as you carefully pull the nccdlc out of the cork or stopper The end o f [he wirc pokinguut the top of the eork ~

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L. Christine L. Cargille Institute for Chemical Education Jn vers ty of W~sconsn 1101 -n iersry Awn-e Maa son. W 53706 ~~~~

Carefully pull the needle out of the carkor stopper

74

Journal of Chemical Education

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