Gesso is made from ground marble dust. Some acrylic painters besides using it for canvas surface prep will mix it with their acrylic paints. It has a sort of chalky effect and makes the painting a bit out of focus. If you have a canvas that has gesso on it, you will see it labeled either portrait or regular canvas.esso is a thick white pigment designed to cover untreated and unprimed canvas. The gesso has two purposes. The first is to cover the unprimed canvas so that the paint you apply does not bleed through the canvas.
Potassium can be solid, liquid or gas. At normal room temperature and atmospheric pressure it is a solid. Above 63.3oC it is a liquid and above 760oC it is a gas. 32 people found this useful.
Since potassium chloride has the formula KCl and the mass of the lost electron from neutral potassium is negligible compared with the mass of the protons and neutrons in the p â¦ otassium atom nucleus, the molecular mass of potassium in this compound is the same as the atomic mass of potassium, 39.098.