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A sand bath is a common piece of laboratory equipment made from a container filled with heated sand. It is used to provide even heating for another container, most often during a chemical reaction. Patterns in the sand Sand is an example of a class of materials called granular matter. ...
A chemical reaction is a process that results in the interconversion of chemical substances [1]. The substance or substances initially involved in a chemical reaction are called reactants. ...
A sand bath is most commonly used in conjunction with a hot plate or heating mantle. A beaker is filled with sand or metal pellets (called shot) and is placed on the plate or mantle. The reaction vessel is then partially covered by sand or pellets. The sand or shot then conducts the heat from the plate to all sides of the reaction vessel. This technique allows a reaction vessel to be heated throughout with minimal stirring, as opposed to heating the bottom of the vessel and waiting for convection to heat the remainder, cutting down on both the duration of the reaction and the possibility of side reactions that may occur at higher temperatures. A hot plate is a small electric stove often used in a laboratory setting to heat glassware. ...
Illustration of a beaker A beaker is a type of laboratory glassware which consists of a cylindrical cup with a notch on the top to allow for the pouring of liquids. ...
Lead shot is small balls of lead, traditional made using a shot tower. ...
Convection is the transfer of heat by currents within a fluid. ...
A variation on this theme, a water bath, can be used to keep a reaction vessel at precisely 100°C. The sand is replaced with water. The water is boiled and thus will maintain the temperature of 100°C until all water is evaporated (see Standard enthalpy change of vaporization). A bain-marie (or water bath; plural bains-marie) is an apparatus used in cooking for applying gentle heat to food. ...
The standard enthalpy change of vaporization is a physical property of substances. ...
Sand baths are one of the oldest known pieces of laboratory equipment, having been used by the alchemists. In older (i.e. Latin) literature, a sand bath is called balneum siccum, balneum cineritium, or balneum arenosum. For other uses, see Alchemy (disambiguation). ...
Latin is an ancient Indo-European language. ...
References - This article incorporates content from the 1728 Cyclopaedia, a publication in the public domain. [1]
Cyclopaedia; or an Universal Dictionary of Arts and Sciences (folio, 2 vols. ...
The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ...
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