Why fireworks used to be colorful and what was added to them?

The reason why fireworks were colorful was because they had a lot of luminous and color-emitting agents added to them, and a large part of the ingredients were metals. During traditional Chinese festivals, people set off fireworks to celebrate. These fireworks are made of gunpowder with some luminous or color-emitting agents. Fireworks were invented by ancient working people and are often used in grand ceremonies or festivals.

I. Colorful fireworks

Throughout the ages, China's fireworks of countless kinds, mostly made of black powder, primers and luminous agents. Mainly including sprays of flowers, rotating class, rocket class, small salute class, combined fireworks class, text class and many other forms, often are colorful. On the one hand, it can attract children, on the other hand, it can make the fireworks become more brilliant, so that people are more enjoyable to celebrate the grand festival.?

Two, luminous agent and coloring agent

In the process of making fireworks, people often add some luminous agent and coloring agent to make fireworks become colorful. the main component of these luminous agent is metal, when these metals are ignited, combustion generates some compounds, will release a unique flame color, which is actually the metal flame color reaction . So that people can be in the dark night, see the fireworks bloom bright and colorful patterns and styles, making the festival become more festive.

Three, the luminous principle: flame color reaction

Luminous agent or coloring agent combustion principle is actually we learned in secondary school chemistry flame color reaction. Metal and oxygen reaction burning and generate metal oxides , different metals will emit different colors. For example, luminol containing calcium will form a brick-red flame when ignited, while those containing sodium may form a yellow flame when ignited, and metals containing copper will form a green flame when ignited.

It is at high temperatures that the luminous agents in fireworks are able to absorb heat when ignited, releasing different colors of light and presenting colorful fireworks. Friends, do you understand? If you understand, welcome to give me a nod.