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.
It is permanent, non-yellowing, flexible and water-resistant when dry. String Gel is used to enhance depth of color and increase transparency and flow. This gel medium works by pouring or dripping the gel from above to create a long, string-like application. It can also be mixed with acrylic color and brushed to form long streaking effects on a surface. Available in 8 oz. jars.