Which chemicals are included in fireworks ? How fireworks get their colors ?
Strontium carbonate, Calcium chloride , Sodium nitrate, Barium chloride and Copper chloride are the most commonly used metals salts in fireworks. Depending on the type of metal salt, the flame of fireworks takes different colors.
Inside fireworks there are some metal salts having the property of giving colors outside. Strontium Carbonate, Calcium Chloride , Sodium Nitrate, Barium Chloride and Copper Chloride are the most common metal salts used in fireworks. Depending on the kind of metal salt, it gives red, blue, yellow, green and white colors outside.
Metal salts are inside of firework. There are actually 4 main chemical ingredients in the structure of a firework, namely an oxidizer, a fuel, a colorant, and a binder. Colorant gives the firework color. Depending on the colorant, the colour of firework changes. For example calcium salts give the pink color.
Aluminium, Antimony, Calcium,Barium, Carbon, Chlorine, Copper, Iron, Lithium, Magnesium, Oxygen, Phosphorus, Potassium, Sodium, Strontium, Titanium, Zinc are most used elements in the fireworks.
In some fireworks, titanium element is used. Titanium, in the form of powder, is used to produce silver sparks.
Sodium gives a gold or yellow color to fireworks.