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Diagram of a vacuum flask Gustav Robert Paalen, Double Walled Vessel. Patent 27 June 1908, published 13 July 1909. The vacuum flask was designed and invented by Scottish scientist James Dewar in 1892 as a result of his research in the field of cryogenics and is sometimes called a Dewar flask in his honour.
Heated bath schema. 1: Heated substance. 2: Heating medium. 3: Laboratory flask. 4: Bowl. 5: Gas burner. A heated bath is used in the laboratory to allow a chemical reaction to occur at an elevated temperature. [1] In contrast to traditional Bunsen burners, heated baths use liquids to transfer heat to the reaction vessel. This is achieved using ...
As research lab technician, I want to foster my children's love for science through fun activities. We're big fans of age-appropriate science podcasts and silly experiments.
Most water baths have a digital or an analogue interface to allow users to set a desired temperature, but some water baths have their temperature controlled by a current passing through a reader. Uses include warming of reagents , melting of substrates , determination of boiling point , or incubation of cell cultures.
A cooling bath or ice bath, in laboratory chemistry practice, is a liquid mixture which is used to maintain low temperatures, typically between 13 °C and −196 °C. These low temperatures are used to collect liquids after distillation , to remove solvents using a rotary evaporator , or to perform a chemical reaction below room temperature ...
Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...
A pot of oil on a heat source An oil bath is a type of heated bath used in a laboratory , most commonly used to heat up chemical reactions. It is a container of oil that is heated by a hot plate or (in rare cases) a Bunsen burner .
It is a common science apparatus used in experiments. [1] Bell jars have a limited ability to create strong vacuums; vacuum chambers are available when higher performance is needed. They have been used to demonstrate the effect of vacuum on sound propagation.
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