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- Q911490 subject Q8579491.
- Q911490 abstract "Round-bottom flasks (also called round-bottomed flasks, Flasks, round bottom, or R B 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 the tip. Two or three-necked flasks are common as well. Round bottom flasks come in many sizes, from 5 mL to 20 L, with the sizes usually inscribed on the glass. In pilot plants even larger flasks are encountered. The ends of the necks are usually conical (female) ground glass joints. These are standardized, and can accept any similarly-sized tapered (male) fittings. Standard Taper 24/40 is common for 250 mL or larger flasks, while smaller sizes such as 14 or 19 are used for smaller flasks.Because of the round bottom, cork rings are needed to keep the round bottom flasks upright. When in use, round-bottom flasks are commonly held at the neck by clamps on a stand.".
- Q911490 thumbnail Verrerie-p1030896.jpg?width=300.
- Q911490 wikiPageWikiLink Q101017.
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- Q911490 wikiPageWikiLink Q7094.
- Q911490 wikiPageWikiLink Q836722.
- Q911490 wikiPageWikiLink Q8579491.
- Q911490 wikiPageWikiLink Q898610.
- Q911490 wikiPageWikiLink Q899083.
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- Q911490 wikiPageWikiLink Q901474.
- Q911490 wikiPageWikiLink Q902776.
- Q911490 wikiPageWikiLink Q903176.
- Q911490 comment "Round-bottom flasks (also called round-bottomed flasks, Flasks, round bottom, or R B 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 the tip. Two or three-necked flasks are common as well.".
- Q911490 label "Round-bottom flask".
- Q911490 depiction Verrerie-p1030896.jpg.