Chemicals spilled on the upper one caused the fabric to deteriorate and the heating wires are now bare; the one on the left is frayed from mistreatment. Choose from flexible fabric or canister-style lab heating mantles. System is designed to perform positive pressure reactions at up to 45 psi at 100 degrees C. Included are a heating mantle and controller, stirring shaft and controller, addition funnel, condenser and manifold. If you are looking for an accurate and easy-to-use heating solution, a lab heating mantle is a good alternative to heating baths. $154.00 $ 154. Contributed by Lisa Nichols. Digital Heating Mantle with Magnetic Stirring, 500ml, 0-1600rpm, 110V, 250W. Heating mantles take some time to warm up (so may be pre-heated during setup of an apparatus), and also take some time to cool down. Choose from flexible fabric or canister-style lab heating mantles. The modular design allows heating cartridges of different sizes to be interchanged using…. The mantles are cup-shaped and designed for different sizes of round bottomed flask (Figure 1.51a). By controlling the delivered voltage, Variacs are used to regulate the temperature of a heating mantle. For use with 6478 heating mantles. The two types of heating mantles used in the organic chemistry teaching labs are shown below. Allow the solution to be stirred and heated simultaneously Provide stirring…, …way to heat and stir a round bottom flask from 10 ml to 5 liters. The lower portion of the flasks fits standard heating mantles to facilitate heating and stirring. The mantle will remain warm even after turning off the Variac, and therefore flasks have to be removed from the mantle in order to cool (Figure 1.52c). This type of heating mantle is nice because it is pliable, and can move somewhat to accommodate different sizes of flasks. Unless otherwise noted, LibreTexts content is licensed by CC BY-NC-SA 3.0. Across International heating and stirring mantles come standard with digital display for the most accurate control. If a mantle does not fit a round bottomed flask perfectly, sand can be added to ensure good thermal contact (Figure 1.51c). Legal. Find a heating mantle and other laboratory equipment for sale and auction at LabX. It comes with a detachable cord, as shown in the photo below below on the left. The large display interface makes it easy to quickly and precisely adjust temperature and rotation speeds. They cannot be re-attached. By controlling the delivered voltage, Variacs are used to regulate the temperature of a heating mantle. Heating Mantles are used to create an even distribution of heat, and they are used as an efficient alternative to heat baths and bunsen burners. Heating mantl… Find laboratory heating mantles … HEATING BLANKETS, BIOREACTORS AND SPINNER FLASKS, TEMPERATURE CONTROLLERS, J-KEM™, MODEL HCC, TEMPERATURE CONTROLLERS, J-KEM®, MODEL 210, TEMPERATURE CONTROLLERS, J-KEM®, MODEL 210/T, TEMPERATURE CONTROLLERS, J-KEM®, MODEL 250, TEMPERATURE CONTROLLERS, J-KEM®, MODEL 260/T, TEMPERATURE CONTROLLER, J-KEM®, MODEL 270, DUAL TEMPERATURE CONTROLLERS, J-KEM®, GEMINI, DUAL TEMPERATURE CONTROLLER, J-KEM®, APOLLO, MANTLES, MICRO, PEAR SHAPED FLASKS, GLAS-COL, MANTLES, HIGH TEMPERATURE, STM SERIES, GLAS-COL. We Believe You Are Important, How Can We Help? © 2020 Cole-Parmer Instrument Company, LLC. The Kjeldahl shape permits easy transfer of liquids and solids. They fit a 100 mL round bottom flask perfectly, but smaller flasks may need to be wrapped with foil to encourage efficient heating. The mantle will remain warm even after turning off the Variac, and therefore flasks have to be removed from the mantle in order to cool (Figure 1.52c).
The heating mantle on the left is covered with fabric. Organic Chemistry Laboratory Techniques is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. Lab heating mantles are used to uniformly heat various lab and glassware vessels.
The problem with this type of mantle is that it is quite easily broken. The rigid type of mantle can be filled with sand to form a sand bath, as shown below.
There is variation between devices, and settings must be experimented with to determine appropriate heating rates. The two types of heating mantles used in the organic chemistry teaching labs are shown below. All Rights Reserved. If they are held by the cord and swung around, or if they are stored in a mass of other such mantles and pulled forcefully from the pile, the wires will detach from the mantle. Sign up to receive the latest in industry news, products, & services. Register Now >. If a mantle does not fit a round bottomed flask perfectly, sand can be added to ensure good thermal contact (Figure 1.51c).
The picture below shows 3 heating mantles of this type. Misc. Available with a choice of a 2mm high vacuum glass stopcock having a S.S. constant pressure retaining device or a 0-4mm Chem-Cap®…, …flange. email: cptsales@labsupply.co.za Phone: +27 (83) 684 4680 While fabric constructed styles can be molded to accommodate a wide variety of flask shapes and sizes, the rigid heating mantles are less susceptible to spill or tearing damage. Indentations increase agitation of the contents of the vessel during stirring. Heating Mantles Glas-Col invented the Electric Heating Mantle in 1939 and has continued to be the industry leader for Laboratory and Industrial heating ever since. For more information contact us at info@libretexts.org or check out our status page at https://status.libretexts.org. Have questions or comments? Figure 1.63: a) Filling a heating mantle with sand to ensure a perfect fit, b) Heating a reflux apparatus with a sand bath. $121.99 $ 121. Flange is also ground to permit a greased seal with any of the lids CG-1940 through CG-1946. Mophorn Heating Mantle 2000ml，Digital Magnetic Stir Plate 450W，Heating Mantle Magnetic Stirrer 1400 RPM，Lab Magnetic Stir Plate for Liquid Heating and Stirring（2000ml） 3.7 out of 5 stars 9. Meeting the needs of the scientific and engineering communities since 1955. CDN$ 266.99.
The mantles should never be connected directly to the outlet, but first to a "Variac" (blue piece of equipment in Figure 1.51b) which then connects to the outlet and delivers variable voltage to the mantle. The heating mantle with stirrer features a polyurethane coated aluminum exterior and a high quality knitted mantle with glass fiber underlay for uniform distribution of heat. Vessel top has a 25mm Ace-thred center neck and various multi-neck configurations. Watch the recordings here on Youtube! A Variac set to "100" would be equivalent to plugging the mantle directly into the wall \(\left( 100\% \right)\), while a setting of "50" means the delivered voltage is halved \(\left( 50\% \right)\). Heating mantles are a relatively safe way to heat flammable organic liquids in a round bottomed flask (Figure 1.52).
A heating mantle, or isomantle, is a piece of laboratory equipment used to apply heat to containers, as an alternative to other forms of heated bath.
…outlet. Eligible for FREE Shipping. The wires which go from the plug into the mantle have a very weak physical connection to the mantle.