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Low form beaker shape, purpose and method of use

[Shaping]

The beaker is a cylindrical cup with an open mouth and a flange, which is mainly convenient for clamping and moving, and has the function of dissipating heat and increasing mechanical strength.[ glass beakers wholesale,beaker 2000ml,250ml Beaker ]  The beaker has a mouth on the edge to facilitate pouring of liquid. Placed steadily, the bottom edge is half
The rounded corners can make the heated surface even and easy to scrape the steamed dry substance at the bottom. [ glass beakers wholesale,beaker 2000ml,250ml Beaker ] The low form scale beaker is printed with a marking line of approximate capacity on its side wall, which is convenient for rough measurement of liquid.

[Use]

The beaker is the most commonly used glassware in laboratories. It is widely used for heating, dissolving, mixing, boiling, melting, evaporation, concentration, dilution and precipitation clarification of chemical reagents. [ Beaker Glass,beaker bottle,800ml beaker ] Different specifications and sizes have different uses. Beakers with a volume of 1-25mL are mainly used for microanalysis, 50-2000mL are mainly used for constant analysis, and 3000-5000mL are mostly used for industrial production units as small-batch production tools or as containers in laboratories. Sometimes it is used instead of water tank, electrolytic tank, etc.[ Beaker Glass,beaker bottle,800ml beaker ]

【Instructions】

(1) The beaker must be cleaned before use. For a new beaker that has not been used, it can be cleaned with tap water and then rinsed with distilled water. As for the used beaker, because there are various chemical contaminants on the wall, it will directly affect the test results, so it is often soaked in “lotion”, then the inner and outer walls are wiped vigorously with a brush, and finally rinsed with distilled water. Whether the beaker is cleaned or not, check to see if there are small water drops on the wall of the cup. [ Beaker Glass,beaker bottle,800ml beaker ] If there are water drops, it indicates that there is a grease film on the wall of the cup. The film is easy to adhere to chemical substances during the experiment and affect the results of the experiment. It must be washed again.
(2) When heating the liquid with a beaker, the volume of the liquid should not exceed 1/3 of the beaker to prevent the liquid from overflowing during boiling. After the liquid is poured into the beaker, the outer wall of the beaker must be wiped dry. [ Beaker Glass,beaker bottle,800ml beaker ] When moving the beaker by hand, keep your fingers away from the inner wall of the beaker, so as not to bring dirt into it. In addition, do not use a beaker to heat and evaporate dangerous chemicals such as concentrated acid (hydrochloric acid, nitric acid, sulfuric acid, etc.), concentrated alkali, mercury, etc., so as to avoid strong corrosive vapors or toxic and harmful gases, polluting the environment or even endangering personal and property safety. When heating the beaker, it should be carried out in an oil bath, a water bath, or a sand bath.[ Beaker Glass,beaker bottle,800ml beaker ]  Try to avoid direct heating. Because the bottom surface is large and the heating surface is uneven, it is easy to cause bursting. If there is no such equipment, the beaker can be placed on the asbestos net for heating. . After heating, when it is removed from the flame, it cannot be placed in a super-cooled place. Rapid changes in temperature will cause the beaker to burst, causing accidents and losses. Put it on the asbestos board or wooden board.[ glass beakers wholesale,beaker 2000ml,250ml Beaker ]