To coagulate means that a liquid with submicroscopic particles in it (e.g. the blood which contains platelets) forms a jelly-like solid. In medicine, this is the same as clotting and means that the blood forms a mass (a clot) which may occlude a vessel.
dilute ethanoic acid is used as a preservative in the preparation of pickles.it is used for making cellulose acetate which is an important artificial fibre.it is used in the manufacture of acetone and esters used in perfumes.it is used in the preparation of dyes.it is used to coaggulate rubber from latex.it is used for making white lead which is used as a white paint.it is used as a chemical reagent in chemistry lab.
Glacial acetic acid is a trivial name for water-free acetic acid. Usually acetic acid containing usually less than 1 percent of water Glacial acetic acid is anhydrous form of acetic acid in which it exists in dimmer form. It's known as Glacial because on freezing it forms needle shape crystals