Clay liner tiles are relatively inexpensive-about $10 for a typical 24â²-tall unit. But what you save on materials will most likely exceed the cost of installation labor. Clay flue liners are hard to retrofit in an existing chimney, especially if it isnât straight.lay liner tiles are relatively inexpensive-about $10 for a typical 24â²-tall unit. But what you save on materials will most likely exceed the cost of installation labor. Clay flue liners are hard to retrofit in an existing chimney, especially if it isnât straight.
Beaker tongs are best used to hold a hot beaker. Pick up hot glassware without heat protection and your skin will be injured. This is as true in the laboratory as it is in your kitchen. Lab tongs, part of a range of laboratory safety equipment, help you move hot ceramics and glassware safely.
8. Carefully remove the aluminum wire (with copper on it) from the beaker. The beaker is HOT but the aluminum is not. Scrape all of the newly formed copper off the aluminum wire with a small metal spatula into your massed plastic cup.. Use a small piece of steel wool to shine a 16 - 18 cm piece of aluminum wire to remove any surface impurities. Do this on some paper towel (not on the lab table/counter, please!). Be careful of the wireâs sharp edges. The safest way to clean the wire is to brush it on a flat surface away from your body.