What minimum frequency of light is required to ionize potassium?The energy required to ionize potassium is 419kJ/mol? Chemistry The photoelectric work function of a metal is the minimum energy needed to eject an electron by irradiating the metal with light. For calcium, this work function equals 4.34 x 10-19 J.
This video shows how to remove black mastic or carpet glue of concrete floor using FranMar's Bean-e-doo mastic remover. This is an easy and safe way to remove black mastic without toxic fumes. for more information visit www.sealgreen.com.1  Howto & Style. 2  Standard YouTube License.his video shows how to remove black mastic or carpet glue of concrete floor using FranMar's Bean-e-doo mastic remover. This is an easy and safe way to remove black mastic without toxic fumes. for more information visit www.sealgreen.com. 1  Howto & Style. 2  Standard YouTube License.
Rinse the tiles with water to remove the muriatic acid. For mastic adhesive applications such as over drywall, you can soak the tiles in water for a few days and the glue will easily peel off with a putty knife. Scrub the tiles lightly with a brush and they'll be good as new.f you want to reinstall and reuse the tiles exactly as they came off the wall, this is certainly an option, and they install in a similar fashion: mastic or mortar is spread on top of a cement board or waterproof drywall with a notched trowel and then the tiles installed into the adhesive.