Wednesday, September 17, 2008

Reaction Vessels & Containers

Reaction vessels & containers – e.g.; Beakers, Flasks


* Simple container for liquids
* Generally cylindrical in shape, with a flat bottom
* Beakers are available in a wide range of sizes, from 1mL up to several liters
* They may be made of glass (very often Pyrex) or of plastic.
* Often graduated, marked on the side with lines indicating the volume contained
* For instance, a 250 mL beaker might be marked with lines to indicate 50, 100, 150, 200, and 250 mL of volume. The accuracy of these marks can vary from one beaker to another.


* Used for holding solutions of corrosive chemicals, such as acids.


* Come in a number of shapes and a wide range of sizes, but a common distinguishing aspect in their shapes
* Flask sizes are specified by the volume they can hold, typically in metric units such as milliliters (mL or ml) or liters (L or l).


* For making solutions or for holding, containing, collecting, or sometimes volumetrically measuring chemicals, samples, solutions, etc. for chemical reactions or other processes such as mixing, heating, cooling, dissolving, precipitation, boiling (as in distillation), or analysis.

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