A heating mantle is a variety of laboratory equipment for applying heat to containers, as an alternative to other forms of heated bath. In contrast to other heating devices, such as hotplates or bunsen burners, glassware containers may be placed in direct contact with the heating mantle without substantially increasing the risk of the glassware shattering, because the heating element of a heating mantle is insulated from the container so as to prevent excessive temperature gradients. Manufacturers of laboratory heating mantles include Glas-Col and Barnstead. Laboratory equipment refers to the various tools and equipment used by scientists working in a laboratory. ... A heated bath is used in the laboratory to allow a chemical reaction to occur at an elevated temperature. ... A bunsen burner with needle valve. ... Glassware includes: Drinkware (for beverages) Vases Pitcher (container)s Art glass Art marbles Laboratory glassware Stained glass is not directly glassware, but is closely related. ...

A canister-type heating mantle.

Heating mantles may have various forms. In a common arrangement, electric wires are embedded within a strip of fabric that can be wrapped around a flask. This type of heating mantle is quite useful for maintaining an intended temperature within a separatory funnel, for example, after the contents of a reaction have been removed from a primary heat source.

Another variety of heating mantle may resemble a paint can, and is constructed as a "basket" within a cylindrical canister (often made of plastic or metal such as aluminum). The rigid metal exterior supports a "basket" made of fabric, and includes heating elements within the body of the heating mantle. To heat an object, it is placed within the basket of the heating mantle. Household items made out of plastic. ... Aluminum is a soft and lightweight metal with a dull silvery appearance, due to a thin layer of oxidation that forms quickly when it is exposed to air. ...

In further contrast to other methods of applying heat to a flask, such as an oil bath or water bath, using a heating mantle generates no liquid residue to drip off of the flask. Also, heating mantles generally distribute heat evenly over the surface of the flask and exhibit less tendency to generate harmful hotspots. A water bath can refer to : a Bain-marie a heated bath Category: ...

External links

• A catalog of canister-style heating mantles marketed by Glas-Col.