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.
1. Remove the majority of mastic from the concrete floor surface with a Scrape-Away floor tool or the Mastic Removal Tool. This tool will effectively remove the majority of dried mastic and the remaining residue left behind is very simple to remove.utomated Mastic Removal Method. 1  Using an automatic floor scrubber, fill the solution tank with the appropriate amount of water and Auto-Mated Cleaner. 2  Lower brush deck, apply a liberal amount of solution, apply medium brush pressure. 3  Do not lower squeegee-yet.