Improper tongs can cause damage or complete failure of a crucible at the worst possible time. Always use the crucible tongs when handling the crucible. Ideal for use with crucibles and dishes with a wide variety of diameters I would seriously use 1/4" thick material (at a minimum) for the extension arms & jaw section of your tongs. Crucible thongs are essential safety tools that every science laboratory must have in their stock. These are a high quality, long lasting commercial grade crucible. Honestly, I don't think I'ld be … Keeping an accurate log of crucible use is essential to the effective and safe operation of crucibles. If the crucible has been allowed to cool, you may use bare tongs (left), but if you must transfer a hot crucible, make sure that you cover the ends of the tongs with aluminum foil (right) as the paint on the tongs might melt onto the crucible and change its weight. They are made of durable metals, allowed them to endure a very hot temperature when touching with the hot objects. Do not touch the crucible with your fingers. Figure the tallest crucible the tongs can safely handle, fabricate some arms with tab stops at the top and reassemble. Crucible Tongs These High Quality Laboratory Stainless Steel Tongs give a positive-grip with corrugated gripping surface for safely handling dishes in muffle furnaces and hot air Ovens. 3. Crucible tongs function is widely found in a science laboratory equipment or industrial equipment to handle a hot crucible, evaporating dishes, flasks, small beakers or other items. Historical use [edit | edit source] It allows you to create a history that will reveal what crucible service life you … 5 6 7 0 Stainless steel crucible tongs with looped handles Bowed jaws with flat ends Can safely grasp hot crucibles, beakers or other apparatus measuring up to 4" in diameter Tongs measure 8.25" in total length Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use Get a crucible, which has already been cleaned by the lab staff. Crucible tongs are large pincers made of welded steel that are used to grasp and take a hot crucible out of a fire or furnace, or to move a crucible from one location to another. Crucible tongs are scissor-like tools, but instead of having two blades, these tools are replaced with two pincers or pieces of metals that concave together, which allow the users to grasp a hot crucible, flasks, evaporating dishes, or even small beakers. Add unknown hydrate crystals to the dry crucible until it is 30-40% full. Maintain a careful log of crucible use, inspect the crucible often, and replace it when worn or damaged. Weigh the crucible, recording the result to the correct number of significant figures. Do not wash it! Making the tongs This is the plan, the tongs will have on one claw an extension going up and then back, it will prevent the crucible from sliding while pouring, and help locking the crucible even tighter, since usually crucibles taper on the bottom, so it will tend to be pushed up against the safety. When transferring a crucible to the dessicator tongs must be used. Crucible and tongs can also be crafted in "Ulf's Forge" at Illa-Newdd (Starting Islands). How To Use It: All crucibles should be handled with properly fitting tongs (lifting tool). A disk of cardboard can be placed between the crucible and the furnace base prior to heating. 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