How high above the inner blue cone of the burner flame should the crucible be when the mg is heated?

In setting up your equipment in front of the fume hood to eliminate any vapors during the experiment. Use an iron ring stand with iron ring to back up the clay triangle to clasp the crucible and lid. Alter the height of the iron ring so the end of the crucible is about one centimeter above the inner blue cone of the strong flame.

c8h10 is your answerr