The Rise of the European Emperor

Aqua regia is so dangerous that it will cause great harm to people. In desperation, Marin had no choice but to temporarily abandon the test of corroding the iron gate of aqua regia, and instead developed the gas mask first.

Marin is no stranger to the gas mask. When raising silkworms in his previous life, quicklime was often sprinkled for disinfection, so Marin's mother always wore the farmer's version of the gas mask. The so-called farmer version of the gas mask is actually the original gas mask, with the core activated carbon part removed. Because, the function of the farmer’s gas mask is mainly to prevent the silkworm farmers’ eyes and respiratory tract from being burned by quicklime. Just add a simple filter sieve, even without activated charcoal. After all, quicklime is a solid, not a poisonous gas.

And Marin wants to make a real gas mask, in fact, he only needs to fill the filter screen in front of the mouth and nose of the farmer version of the gas mask with activated carbon.

But first...Marin needs to make activated carbon first...

So, Marin recruited craftsmen to make a simple farmer's version of the gas mask. This is very easy, but the eye edges are all sewn with leather, and then wrapped in a hood-like space. Because there is no plastic, Marin directly used a wooden shelf. The craftsmen under Marin can even make pocket watches. This kind of simple gadget can be made without any effort.

Then, it's activated charcoal. This is more troublesome. Marin remembers that activated carbon mainly has chemical activation method and water vapor activation method.

However, Marin remembered that activated carbon produced by chemical activation is often poisonous and can only be used for industrial removal of impurities and filtration. Activated carbon used in food production is often produced by impacting charcoal with high-temperature water vapor. Activated carbon by chemical method is often produced directly from coal.

The chemical method Malin is not very clear about the technical content, but the physical method Marin still remembers it. The specific process is - first put the coconut shell and other wooden materials in the furnace at high temperature to isolate the air and heat them, so that they can be carbonized into charcoal. During the carbonization process, substances such as methanol inside the wood or coconut shell are volatilized at high temperatures, leaving some pores inside the charcoal at first. But that's not enough...

Afterwards, the finer-grained charcoal is placed on a metal strainer and placed in the furnace. The high-temperature and high-pressure water vapor is introduced to scour the charcoal on the metal mesh from bottom to top to generate more gaps for adsorption. And this kind of water vapor, often the temperature is as high as 500 degrees or more. Even, it can reach 800 degrees...

...

well,

High temperature and high pressure water vapor... This is to force Marin to make a pressure cooker...

Didn't say anything - put on the pressure cooker first...

Then, a pressure cooker with soft, thick elephant skin as a leather gasket was born...

In fact, when Marin was making paper, he made a large airtight metal container and added a cowhide gasket to keep it air-tight. However, the cowhide is a bit thin, and the effect of holding your breath is not very good. But anyway, it's enough.

And this time, because when Marin sent people to Senegal to hunt rhino hides, he hunted many elephants by the way. Therefore, the thick and soft elephant skin was sent to the native land.

Although elephant skin is thick, it is too soft to be used as armor. However, it is very suitable for making leather sofas, which is much more comfortable than cowhide.

And now, Marin suddenly discovered that thick and soft leather like elephant skin seems to be very suitable for making pressure cooker leather gaskets...

Even the edge of the gas mask, in order to make there is no gap between the face and the gas mask, Marin also used soft and thick elephant skin to replace the rubber edge of the gas mask of later generations to achieve a full breath-holding effect.

After the pressure cooker was ready, Marin asked someone to make a metal mesh with copper wire, but copper is also easy to oxidize under high-temperature water vapor. So Marin threw the copper wire mesh into the zinc liquid and soaked it to get a layer of galvanized layer. Zinc liquid is easy to oxidize, but after oxidation, the formed oxide layer is very resistant to corrosion and oxidation.

Marin then had copper pipes and boilers built to create a system for producing activated carbon. Then, Marin ordered the pressure cooker to boil water...

The pressure cooker made by Marin is different from the small pressure cooker in the kitchen of later generations. This kind of pressure cooker used in industrial production has a very thick wall and a heavy locking mechanism on the lid. In this way, it is not as easy to fry as the kitchen pressure cooker of later generations.

After cooking for a while, I felt that it was almost done. The worker in armor and anti-explosion pulled the valve...

Immediately, a stream of high-temperature and high-pressure hot water vapor rushed along the copper pipe to the copper furnace, passing the metal net at a fast speed, and washed the charcoal particles on the net into the air. After the water vapor passed, the charcoal particles fell back onto the metal mesh...

After that, Marin asked people to do this many times before taking out the net of activated carbon...

...

After getting the activated carbon, it is natural to test the effect. Marin put activated carbon into the farmer's version of the gas mask. Then, get someone to test the effect...

This time it was a test of poison gas, so naturally I would not find my soldiers. Then, a death row prisoner in the gang was brought out...

Marin had someone tie up the death row prisoner, then put a bottle of aqua regia in front of him, and threw an iron block into it...

The iron block entered the aqua regia, violently churning, and the reaction speed was very fast. Then, a large amount of nitric oxide gas floated up and rushed straight to the face of the death row...

But until the iron lumps were dissolved, the condemned prisoner did not pass out...

"Very good, a success!" Marin clenched his fist happily.

It's no wonder, after all, Marin had been exposed to the farmer's version of the gas mask in his previous life. When I was a child, I often took my mother's farmer's gas mask out to play war games with my friends. Therefore, there is still a lot to know about gas masks. Otherwise, it would not be so easy to imitate. If it was something he hadn't seen before, even if he knew the principle, it would not be so easy to make it.

In addition, elephant skin is really a good thing, thick and soft. In many occasions, it can completely replace the role of rubber. The rubber trees promoted and planted by Marin have not yet grown for 6 years, and they cannot be tapped yet. So, I had to deal with it with elephant skin first.

As for protecting elephants? Do not make jokes! The protection of elephants in later generations is because humans hunted and killed too many elephants with advanced shotguns, which caused elephants to become endangered. Therefore, elephants need to be protected.

In this era, elephants basically have no natural enemies. Because, even if the elephants are lions, they dare not provoke them. Even those powerful tribes in Africa have to mobilize their entire clan before they dare to provoke elephants.

Later generations of Marin have seen a video of Lao Hei hunting elephants with a javelin. In that video, Lao Hei is everywhere, at least thousands of people. In order to prevent the elephants from fighting back, they dressed themselves up in fancy clothes (in fact, to scare the beasts), and then kept howling ghosts and wolves to scare the elephants. The elephants were really frightened and started to run away. At this time, these old blacks really started to hunt down the stragglers with javelins. If the elephants were not frightened, but enraged, Nima would have trampled many people to death...

Moreover, it is difficult for stone javelins to pierce thick elephant skin, unless it is a metal spearhead, which can be easily done. Therefore, in this era, there are very few old blacks who dare to provoke elephants. Because most of Lao Hei at this time were in the Stone Age.

In front of the powerful "Elephant Lord", Lao Hei of the Stone Age was terrified and trembling. He was afraid of being ruined by elephants when farming, so how dare he harm elephants?

Therefore, Marin sent people to kill elephants in Senegal, and even got the gratitude of the local old black...

...

After confirming that the gas mask was indeed useful, Marin started the test of corroding the iron door with aqua regia again...

Genius site address:. Mobile version reading website: