Firework colors

Firework colors

Color	Metal	Example compounds
Red	Strontium (intense red) Lithium (medium red)	SrCO3 (strontium carbonate) Li2CO3 (lithium carbonate) LiCl (lithium chloride)
Orange	Calcium	CaCl2 (calcium chloride)
Yellow	Sodium	NaNO3 (sodium nitrate)
Green	Barium	BaCl2 (barium chloride)
Blue	Copper	CuCl2 (copper chloride), at low temperature
Indigo	Cesium	CsNO3 (cesium nitrate)
Violet	Potassium Rubidium (violet-red)	KNO3 (potassium nitrate) RbNO3 (rubidium nitrate)
Gold	Charcoal, iron, or lampblack
White	Titanium, aluminum, beryllium, or magnesium powders

                                                                                                      

                                                                                                                                          Copper compounds glow green or blue-green flames

The brightest stars, often called Mag Stars, are fueled by aluminium. Magnesium is rarely used in the fireworks industry due to its lack of ability to form a protective oxide layer. Often an alloy of both metals called magnalium is used.Many of the chemicals used in the manufacture of fireworks are non-toxic, while many more have some degree of toxicity, can cause skin sensitivity, or exist in dust form and are thereby inhalation hazards. Still others are poisons if directly ingested or inhaled.