It comes in a composition; for instance, strontium nitrate. Greens will come from something called barium nitrate ... change to red and then end in the silver color. So we can do all kinds ...

(i) Solutions of barium chloride and sodium sulphate ... AgNO 3 (aq)+NaCl(aq)→AgCl(s)+NaNO 3 (aq) Silver nitrate and sodium chloride exchange their ions to form silver chloride and sodium ...

The colors are made by “metal salts”. Elements such as sodium nitrate will yield a yellow color. Copper chloride gives you blue fireworks. Barium chloride gives you green fireworks.

These flares are based on a combination of barium nitrate and polyvinyl chloride (PVC) which burn to form barium chloride and emit green light. Aside from the toxicity of the barium, burning PVC ...