cliparts/d/0/a/0/clipart-double-neck-boiling-flask-d0a0.svg image/svg+xml Open Clip Art Library double neck boiling flask 2008-07-17T19:54:55 A simple two neck round boiling flask http://openclipart.org/detail/17897/double-neck-boiling-flask-by-johnpwarren johnpwarren chemistry chemistry clip art clipart glassware glassware image media png public domain science science svg tool tool