Hand rubbing nuclear fusion live in the wilderness

Chapter 148 Making Gunpowder (ask for subscription, ask for monthly pass)
It didn't take long for the potassium nitrate solution in the pot to evaporate most of the water again.

A grain of white potassium nitrate salt crystals were also precipitated out again.

Collect all the potassium nitrate and store most of it in a glass bottle, with the lid on to keep it from getting wet.

Set aside a small portion to serve in china.

In the stone stove, the bonfire was still burning.

Han Yuan looked at the firewood inside, picked it out, and then pulled out a piece of hardwood from the stone stove.

Extinguish the flame, remove all the black charcoal on it, and then grind it into a fine powder in the grinding body.

Once processed, it is mixed into potassium nitrate and ground again.

However, Han Yuan was much more careful when handling the mixture this time. The collision between the grinding body and the pestle was very light, and the movements were gentle, for fear of sparks coming out.

While grinding, Won explained the steps.

"Basically everyone has seen fireworks. When they are set off, they are very beautiful, and the colors are even more colorful."

"But as long as you understand the principle, it is actually very easy to make fireworks. If you are interested, you can even make them at home."

"But be very careful, after all potassium nitrate is flammable and explosive."

"As for the brilliant colors of fireworks, they actually come from various metal powders and other compounds added to gunpowder."

"The flame reaction of each metal powder or compound powder is a different color."

"For example, if you add hardwood toner to pyrotechnics, little golden stars will pop out, or if you add potassium nitrate powder, little purple stars will come out."

"Although it is not difficult to make colorful fireworks, it is still somewhat difficult to make the ones you have seen."

"Because that involves some powder filling arrangements and manufacturing techniques."

"But today I won't make those complicated fireworks, just make a simple one for everyone to see the effect."

After carefully grinding the toner and potassium nitrate mixture in his hands, Han Yuan got up and went back to the wooden house, took out a small piece of copper, and took out two more sheets of paper.

Like carbon powder, small pieces of red copper are also ground into a fine powder by won, and then added to the previous powder.

Although the colors of carbon powder, copper powder, and potassium nitrate are all the same, the powders of three different colors are mixed together, but they are black.

The so-called near-ink blackness is like this.

The audience in the live broadcast room looked curiously at the Won and added some copper powder into it, and asked what the copper powder was for.

Seeing the inquiry on the barrage, Han Yuan picked up a pinch of black powder and handed it to the camera, revealing the purple-gold copper powder inside like bright stars in the night sky, saying:
"These copper powders can replace aluminum powder or magnesium aluminum powder."

"Because in ordinary fireworks pharmaceuticals, there are generally added metal powders such as aluminum powder and magnesium aluminum alloy powder."

"When these metal powders burn strongly, they can decompose a large amount of heat energy and light energy, emit strong light, produce a luminous effect, and then play a lighting role."

"The other one is to increase the color. The flame reaction of copper is green, which can make the fireworks more splendid."

This method of adding copper powder and some sodium chloride powder to potassium nitrate charcoal fireworks is also the first time for South Korean won.

This is a manufacturing method he found in the system knowledge information, which can make quite beautiful fireworks.

With all the prep work done, Won took out the paper he had brought, trimmed it a bit, and melted some resin to glue it together, turning it into a hollow cylinder.

By the way, some dry sand was bonded with resin to seal the bottom.

The bottom should have been sealed with mud, but he was too lazy to wait for the wet mud to dry.

Simply use resin and dry clay to deal with it.

The processed fireworks are poured into the processed fireworks powder, and then sealed with dry and fine sand.

As for the lead wire in the middle, it is also made of paper rolled with some fine fireworks powder, but Han Yuan cut a tube out of thin bamboo and inserted it inside.

This can ensure that when burning, the powder in the fireworks can be sprayed out along the bamboo tube, turning into gorgeous fireworks.

Instead of blowing up with a bang.

Otherwise, instead of making fireworks, he would be making dynamite.

The first firework was made, and several more were made in the same way.

However, the materials inside have been changed. In addition to copper powder, there are also iron powder and salt.

When different materials are burned, the flame color is different, which can increase the ornamental value.

It takes three hours to create some fireworks, and it's worth the won.

After all, if the ratio of the fireworks inside is slightly changed, and the outer paper shell is changed, it becomes a black powder bomb.

Think of it as an experiment to make black powder, anyway, these things will be grinded and tested later.

After the fireworks were made, Han Yuan looked up at the sky, and it was still about four or five hours before it got dark.

After thinking about it, he put the prepared fireworks into the wooden house first, brought tools, and went into the jungle to cut wood.

"It's no fun to set off fireworks during the day, let's set them off at night."

"Taking advantage of the time this afternoon, I will prepare some materials and make a set of brewing equipment in the next two days."

"In industry, wine, that is, ethanol, plays a big role."

"As a basic chemical raw material, industrial ethanol can be used in printing, electronics, hardware, spices, chemical synthesis, pharmaceutical synthesis, etc."

"And the more science and technology develops, the more inseparable from chemical engineering, so in addition to the manufacture of various electrical appliances, I also need to study various chemical materials."

Nowadays, some types of trees have been cut down by Korean won.

Even adult trees, unless they are particularly large, are his targets.

It has to be said that the development of industrialization is really destroying forests and the environment.

Alone, within a few months, he almost cut down all the trees within a hundred meters around the wooden house.

This is still in the tropical rain forest, where the available trees are dense,
In other places, it is estimated that the trees within a radius of one or two kilometers are gone.

After four or five hours of cutting down trees, drying firewood, and burning charcoal, the Korean won pushed the surrounding bare ground a few meters away.

He didn't stop until the sun went down.

Under the impatient urging of the audience, Han Yuan ate dinner unhurriedly, and waited until it got dark before taking out the fireworks from the wooden house.

The fireworks tubes he made are all long, a full meter, and the diameter is even thicker than his wrist.

After all, it's too short to be entertaining.

You have just started, and it is over, how disappointed the waiting girl should be.

For the fireworks he made, Won is still very confident, and he is not worried about misfires or explosions.

(End of this chapter)