Round-bottom flasks (also called round-bottomed flasks or RB flasks) are types of flasks having spherical bottoms used as laboratory glassware, mostly for chemical or biochemical work. They are typically made of glass for chemical inertness; and in modern days, they are usually made of heat-resistant borosilicate glass. There is at least one tubular section known as the neck with an opening at. Amazon's Choice for round beaker. United Scientific FG4060-1000 Borosilicate Glass Flat Bottom Boiling Flask, 1000ml Capacity. 4.1 out of 5 stars 10. StonyLab Glass 500ml Heavy Wall 2 Neck Round Bottom Flask RBF, with 24/40 Center and Side Standard Taper Outer Joint - 500ml. 3.8 out of 5 stars 14. $25.95 $ 25. 95. $2.00 coupon applied.
The beaker bottom is one of the oldest and most iconic bong shapes in glass history. The shape was modeled after the Erlenmeyer flask created in 1860 by Emil Erlenmeyer. The original Erlenmeyer flask is shaped just like a classic beaker bong but with a shorter neck and . Laboy HMF011435 Glass 1000 mL 3 Neck Round Bottom Boiling Flask with 24/40 Center and Side Joints Angled. by LABOY. $36.75 $ 36 75 $47.78. FREE Shipping on eligible orders. 5 out of 5 stars 8. Chemglass CG-1512-09 Glass 1000mL Heavy Wall Single Neck Round Bottom Evaporating Flask, with 24/40 Outer Joint.
A beaker is a generally cylindrical container with a flat bottom. Most also have a small spout (or "beak") to aid pouring, as shown in the picture. Beakers are available in a Related items: Laboratory flask. Classic Round Bottom. Unique shaping and impressive thickness make the Round Bottom design appealing to those looking for a stylish alternative to a beaker bottom. Available in 7mm and 9mm models with some occasionally made with colored joints.
Oct 12, 2018 · Round bottom or boiling flasks do not stand up on their own and must always be held by a clamp. They typically do not have markings (other than a mark approximating maximum volume) or pour spouts. They can be heated by Bunsen burner, or by a special type of hot plate that is made to accommodate the round bottom.