Fireworks is released at once. Similar to a chrysanthemum, but with long-burning silver or gold stars that produce a soft, dome-shaped weeping willow-like effect. Fireworks pose risks of injury to people, and of damage, largely as a fire hazard. Fireworks produce smoke and dust that may contain residues of heavy metals, sulfur-coal compounds and some low concentration toxic chemicals. These by-products of fireworks combustion will vary depending on the mix of ingredients of a particular firework. (The color green, for instance, may be produced by adding the various compounds and salts of barium, some of which are toxic, and some of
Barium iodide to form organobarium compounds. BaI can be reduced with lithium biphenyl, to give a highly active form of barium metal. Like other soluble salts of barium, barium iodide is toxic. Barium iodide Barium iodide is an inorganic compound with the formula BaI. The compound exists as an anhydrous and a hydrate (BaI(HO)), both of which are white solids. When heated, hydrated barium iodide converts to the anhydrous salt. The hydrated form is freely soluble in water, ethanol, and acetone. The structure of the anhydrous form resembles that of lead(II) chloride with each Ba center bound to nine iodide ligands and