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2. Florence flask - Wikipedia

   en.wikipedia.org/wiki/Florence_flask

   It is used as a container to hold liquids. A Florence flask has a round body, a long neck, and often a flat bottom. It is designed for uniform heating, boiling, distillation and ease of swirling; it is produced in a number of different glass thicknesses to stand different types of use.

3. Laboratory flask - Wikipedia

   en.wikipedia.org/wiki/Laboratory_flask

   Round-bottom flasks are shaped like a tube emerging from the top of a sphere. The flasks are often long necked; sometimes they have the incision on the neck, which precisely defines the volume of flask. They can be used in distillations, or in the heating a product. These types of flask are alternatively called Florence flasks. Flasks with flat ...

4. Round-bottom flask - Wikipedia

   en.wikipedia.org/wiki/Round-bottom_flask

   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.

5. Erlenmeyer flask - Wikipedia

   en.wikipedia.org/wiki/Erlenmeyer_flask

   An Erlenmeyer flask, also known as a conical flask (British English) [1] or a titration flask, is a type of laboratory flask with a flat bottom, a conical body, and a cylindrical neck. It is named after the German chemist Emil Erlenmeyer (1825–1909), who invented it in 1860. [2] Erlenmeyer flasks have wide bases and narrow necks. [3]

6. Weighing bottle - Wikipedia

   en.wikipedia.org/wiki/Weighing_bottle

   In the case of a bowl in which the weighed substances are hygroscopic and decomposed when exposed to moisture or in contact with air, the sample is bottled in an atmosphere of nitrogen, and then weighed in the sealed glass container. Flat boat dish is an oblong, flat-bottomed dish, in which it is easy to weigh out the substance, and then move ...

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