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by Marshall Brain

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Brain, Marshall.  "What if I touched dry ice?"  24 March 2008.  HowStuffWorks.com. <http://science.howstuffworks.com/touched-dry-ice.htm>  11 February 2012.
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Prices: Icemakers

  • Bel-Art 388780012 Scienceware European Model Frigimat Dry Ice Maker, 12&quot; x 6-1/2&quot; x 5&quot; Overall Size
    Bel-Art 388780012 Scienceware European Model Frigimat Dry Ice Maker, 12" x 6-1/2" x 5" Overall Size

    The Bel-Art Frigimat dry ice maker, European model number 388780012 by Scienceware, is used to create small amounts of dry ice in a laboratory or other setting. Dry ice is used to keep a substance or object cold in food handling and shipping, science, and medical applications, and is used to create a fog-type of atmosphere in the entertainment industry. This dry ice maker uses the time-tested Joule-Thompson (also called Joule-Kelvin or Kelvin-Joule) effect for gas expansion in a vacuum to produce dry ice. With this throttling process, CO2 will cool upon expansion. In approximately one to two minutes, the dry ice maker produces one solid, 454-gram block of dry ice that measures 11.0 (l) x 8.5 (w) cm [4.65 (l) x 3.65 (w) inches]. The block can be removed from the unit approximately 30 seconds after formation. Each 50-lb. cylinder of liquid CO2 (LCO2) with dip tube makes eight blocks of dry ice. The dry ice maker has an epoxy-coated steel frame, and an aluminum ice chamber for strength and dependability. Brass valves add strength and security. It has four non-skid rubber feet to prevent sliding, or skidding. This dry ice maker includes a 1.8-meter (6-foot) nickel-plated copper connecting tube with standard CGA 320 (0.830-inch to 14-inch) thread couplings for attachment to an LCO2 cylinder (not included). It is a European model for direct connection to an LCO2 tank. Threads on the LCO2 tank (supplied by tank manufacturer) must match the European model. Dry ice must be handled using insulated cryogenic gloves (sold separately). The dry ice maker’s dimensions are 30 (l) x 17 (h) x 13 (w) cm [12 (l) x 6.5 (h) x 5 (w) inches], and it weighs 7.9 lbs. with valve attachment. Dry ice temperature is -109.3 degrees F (-78.5 degrees C). Dry ice, the solid form of carbon dioxide (CO2), is commonly used as a cooling agent when temperatures lower than conventional ice are desired, and liquid melt-water is not desired. Dry ice is made by compressing and cooling the gas form of CO2 until it becomes liquefied. With expansion, the liquid changes into a solid state, and is then hydraulically compressed into dry ice blocks, pellets or slices. Rather than melting, dry ice sublimates, turning back into gas, as the temperature rises. Under specific conditions, dry ice can create a fog-like effect. It is much heavier than frozen H2O, and should be handled using insulated cryogenic gloves for thermal protection. Dry ice is used in laboratory and field applications in the food handling and shipping, medical, science, education, industrial cleaning, fire-fighting, and entertainment industries. Since 1946, Bel-Art has been manufacturing and distributing scientific equipment such as lab ware, dry ice makers, desiccators, glassware, testing equipment, and safety supplies for the scientific and medical industries. With worldwide distribution, and facilities located in New Jersey, Maryland and Missouri, most Bel-Art products are manufactured in the USA. Bel-Art is the recipient of numerous awards, including the Presidential “E” Award by the US Department of Commerce for excellence in export sales. What’s in the Box? Dry ice maker Connecting tube

    $847.52

  • Dry Ice Maker, Scienceware (Brass Nozzle and Collector Bag Only, Customer Must Provide Their Own Liquid Carbon Dioxide) Screws onto any LCO2 Cylinder Equiped with a Dip Tube
    Dry Ice Maker, Scienceware (Brass Nozzle and Collector Bag Only, Customer Must Provide Their Own Liquid Carbon Dioxide) Screws onto any LCO2 Cylinder Equiped with a Dip Tube

    Dry Ice Maker - Produce dry ice in flake or snow form efficiently and economically. -- Just screw the brass nozzle to an LCO2 cylinder, then open the cylinder valve. The liquid carbon dioxide expands through the cone and into the bag to form dry ice. (Please note: The LCO2 cylinder must have a dip tube.)

    $143.35

  • Bel-Art 388860002 Scienceware European Model Frigimat Junior Dry Ice Maker
    Bel-Art 388860002 Scienceware European Model Frigimat Junior Dry Ice Maker

    The Bel-Art Frigimat Junior Dry Ice Maker, European model number 388860002 by Scienceware, is used to create dry ice in the choice of flake or snow form within in a laboratory or other setting. Dry ice is used to keep a substance or object cold in food handling and shipping, science, and medical applications, and is used to create a fog or snow-type of atmosphere in the entertainment industry. This dry ice maker can create flake shapes that are useful for packing around irregular-shaped items. It is a European model for direct connection to matching threads on the liquid carbon dioxide (LCO2) tank. The unit has a brass nozzle for reliability that screws into any LC02 cylinder equipped with a dip tube. As the cylinder valve is opened approximately 3/4 of a turn, LCO2 expands into the bag to create dry ice snow. Then the valve can be closed and the bag is ready to be removed and emptied. The dry ice maker is portable by land for ease of setup and operation. This dry ice maker is a European model for direct connection to an LCO2 tank. Threads on the LCO2 tank (supplied by tank manufacturer) must match the European model. Dry ice must be handled using insulated cryogenic gloves (sold separately). The dry ice maker creates 0.77 kg (1.7 lb) of flakes per bag. The unit cone dimensions are 13 (l) x 5.1 (d) cm [5 (l) x 2 (d) inches], and the bag is 30 (l) x 15 (w) cm [12 (l) x 6 (w) inches]. The Junior Dry Ice Maker comes with twelve bags. Dry ice temperature is minus 109.3 degrees F (-78.5 degrees C). Dry ice, the solid form of carbon dioxide (CO2), is commonly used as a cooling agent when temperatures lower than conventional ice are desired, and liquid melt-water is not desired. Dry ice is made by compressing and cooling the gas form of CO2 until it becomes liquefied. With expansion, the liquid changes into a solid state, and is then hydraulically compressed into dry ice blocks, pellets or slices. Rather than melting, dry ice sublimates, turning back into gas, as the temperature rises. Under specific conditions, dry ice can create a fog-like effect. It is much heavier than frozen H2O, and must be handled using insulated cryogenic gloves for thermal protection. Dry ice is used in laboratory and field applications in the food handling and shipping, medical, science, education, industrial cleaning, fire-fighting, and entertainment industries. Since 1946, Bel-Art has been manufacturing and distributing scientific equipment such as lab ware, dry ice makers, desiccators, glassware, testing equipment, and safety supplies for the scientific and medical industries. With worldwide distribution, and facilities located in New Jersey, Maryland and Missouri, most Bel-Art products are manufactured in the USA. Bel-Art is the recipient of numerous awards, including the Presidential “E” Award by the US Department of Commerce for excellence in export sales. What’s in the Box? Dry ice maker Connecting tube

    $135.08

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