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. [1] They are typically made of glass for chemical inertness ; and in modern days, they are usually made of heat-resistant borosilicate glass.

Specifically shaped for uniform heat distribution, the round bottom flasks are used for distillation, chemical reactions, heating liquid sample, and storage demands. Manufactured from resistant glass, the spherical containers will spread encountered stress …

Round bottom flasks are ideal for heating, boiling, and evaporating liquids. The round bottom provides uniform heating. We offer boiling flasks with a short or tapered neck in a variety of capacities.

2014年7月16日 · Round-bottom flasks (also called round-bottomed flasks, Flasks, round bottom, or RB Flasks)having spherical bottoms are more resistant to fracturing under vacuum, as a sphere more evenly distributes stress across its surface.

Save preparation time and avoid contamination risk with these single-use flasks, ideal for suspension of cell culture, media preparation, mixing and storage. Designed for great shock resistance. Replace glass flasks with this flask, molded in one piece for full vacuum service with angled tubulation to prevent tipping.

Vanity Custom-Shaped 8 oz Round Alcohol Liquor Flask With Shot Glass (Made from 304 (18/8) Food Grade Stainless Steel)

Round bottom flask | capacity 25 mL | With cap, FETFE O-ring, and septum | Buy laboratory flasks online from Sigma Aldrich

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Heavy-wall borosilicate glass flasks are pressure rated to 60 psig at 120°C. The rounded bottom facilitates use in heating mantles and for other round-bottom flask applications. Flasks are supplied complete with Ace-Thred PTFE front seal bushing and FETFE ® O-ring.