Endothermic Chemical Reactions. the reaction of barium hydroxide octahydrate crystals with dry ammonium chloride. dissolving ammonium chloride in water. the reaction of thionyl chloride (SOCl2) with cobalt(II) sulfate heptahydrate. mixing water and ammonium nitrate. mixing water with potassium chloride.
Gelatin is available in the market both in the powdered form and in sheet form. Pigskin gives gelatin with each processing, but the highest quality of gelatin is one that is obtained with first time processing of pigskin. This gelatin has a great gelling capacity and is almost clear. It also has a mild flavor.
Collagen and gelatin are similar in terms of their benefits because they contain the same amino acids, but their uses are slightly different and some people digest gelatin a bit more easily. Cooking collagen helps isolate gelatin, and gelatin only dissolves in hot water.