Chapter 61: Only the Dongfeng

The next day, after Chen Wanrong got up, he used it early and rushed to the Military Arts Prison. Chen Wanrong thought he was here early today, but he didn't expect that when he arrived at the Military Arts Prison, he realized that it was the latest one. He couldn't help but laugh at himself: "You guys are so early."

Kou Yibing raised his white beard and smiled happily: "Mr. Chen, what day is today? The day of sauna! Can we not come early?"

Boiling nitrate itself is not important. What is important is that the gunpowder is too powerful. They have seen it, so they naturally want to witness the boiling nitrate with their own eyes. Although it is a bit unexpected, it is reasonable. Chen Wanrong couldn't help but smile: "Since you are all ready, let's start."

"That's what you said!" Ye Tianheng's crutch kept twitching on the ground, walking in his head as if he was flying.

Chen Wanrong followed everyone to the room, and saw that the stove was all ready, and even saltpeter was piled aside, waiting for him, the person in charge to order the start of work. The preparations were done in place, and Chen Wanrong couldn't do it unless he was satisfied.

"Mr. Chen, what should I do? You order." Liu Huaide rolled up his sleeves.

Chen Wanrong didn't say much: "Rise the fire and add water."

As soon as the words came to an end, the mail service raised the fire and lifted the water, and it was completed in just a short while. Chen Wanrong picked up the saltpeter and put it in the pot. Ye Tianheng immediately imitated it, you one piece, I one piece, there was a lot of it in the pot.

Chen Wanrong clapped his hands and stood up. Ye Tianheng was a little confused and asked, "My friend, why is this? Isn't it just to boil salt, right?"

Boiling nitrate is to separate using the principle of different solubility of potassium nitrate and greatly changes. Of course, Ye Tianheng has no common knowledge of chemistry, so it is normal not to understand it. Chen Wanrong nodded and said, "It's almost the same."

Cao Zhixiong was very surprised: "Can this be able to cook salt? It's not the same as boiling sea to make salt?"

These are two things. Boiling sea salt is because seawater contains salt. By heating and evaporating the water, salt can be obtained. Boiling nitrate is done using the principle of rapid change in solubility at different temperatures. (The solubility of salt does not change too much with temperature.)

Chen Wanrong wanted to correct his statement, but when he thought that he had no knowledge of chemistry and was difficult to explain, he had to say, "There is some difference."

Cao Zhixiong wanted to ask what the difference was, but Chen Wanrong picked up a stick and stirred it in the pot, so he didn't ask, picked up the stick and stirred it. As the temperature rose, potassium nitrate was already dissolving, and stirring had the effect of speeding up the dissolution. In just a while, saltpeter scattered and gradually turned into mud and sand.

This change was really unexpected. Everyone was surprised and there was a lot of surprise.

Their reaction was not surprising at all, not surprising at all, and explained to them with a smile: "The useful ingredients in saltpeter have been transferred to the water, and add some more in."

Ye Tianheng asked for advice while adding saltpeter: "My friend, how can we get useful ingredients?"

This question was exactly what everyone wanted to ask, and agreed in unison, looking at Chen Wanrong, waiting for the answer. Chen Wanrong stirred and said, "I'll know later. Now it's not vivid enough."

No matter how well you say it, it is better to experience it yourself and make people feel it.

Ye Tianheng and the others stopped asking. Seeing that the temperature was almost the same, Chen Wanrong called off, and then everyone stopped, stopped stirring, and put the stick aside.

There was already a strange smell in the air, and Chen Wanrong frowned and said, "This is the fire. Okay, everyone, let's go out and come in later."

Cao Zhixiong was a little unwilling to give up and asked, "Why do you want to quit?"

Chen Wanrong explained: "If you smell it, isn't there any strange smell? This is not good for your body, so just wait and come in later."

"Is the harm great? If it is not big, let's watch it." Kou Yibing didn't care about this harm.

The harm is there, but it is not big. Chen Wanrong answered truthfully: "It's not big."

"Then I'll watch." Everyone expressed their determination in unison.

Chen Wanrong wanted to avoid it, but it was difficult to leave, so he had to follow them to guard it. Until the pot was cleared, Chen Wanrong asked someone to carefully scoop the clarification liquid into the clean pot. A few pots of clarification liquid were collected and filled with a full pot.

"Do you want to pour out these mud and sand?" Ye Tianheng asked carefully after looking at the mud and sand in the pot.

Chen Wanrong nodded and said, "That's right."

As soon as Ye Tianheng put down his crutch, he was about to work. Kou Yibing hurriedly grabbed him: "Brother Ye, don't do it. You are old, don't be exhausted."

"Ye encountered such a thing the first time in his life. Even if he was exhausted, I would admit it." Ye Tianheng didn't care.

Kou Yibing would not let him do it, and he held on his own. Ye Tianheng had no choice but to give up.

The servant poured out the mud and sand, cleaned the pot, and with Chen Wanrong's guidance, he then brought in the pot and poured it into the pot. This time, without waiting for Chen Wanrong's instructions, everyone picked up the saltpeter and put it in the pot, picked up the stick and stirred it.

After this round was completed, Chen Wanrong asked people to raise the fire to heat the clarification liquid. As the temperature rose, the odor in the house became stronger and stronger. Everyone finally couldn't stand it and ran out of the house one after another.

"You know it's amazing now, right?" Chen Wanrong jokingly said.

Liu Huaide said worriedly: "Will something happen if there is no one in the house?"

Chen Wanrong smiled and said, "It's okay, just go in later."

Everyone was thinking about boiling salt, and they were in a bad mood to talk and wait. It was probably almost done, so Chen Wanrong entered the house and transferred the clarification liquid to a clean pot.

When the temperature rises and the odor is strong, go out of the house and wait. This is repeated twice. When everyone enters the house, Cao Zhixiong's surprised voice sounded: "Look, something is out of the water, something is out! White!"

Everyone looked in the direction of his fingers and saw white potassium nitrate crystals appearing in the pot. They were very knowledgeable, and the appearance of white potassium nitrate in the water would not surprise them. The key was that a large crystal appeared in the water, the size of a thumb, crystal clear and particularly beautiful, like a crystal, and it would not be possible to be surprised if they were not surprised.

Crystallization is conditional. If the conditions are appropriate and there are crystal nuclei, the precipitated grains may be large and polyhedral, which looks particularly beautiful and amazing.

Such a large crystal is not so easy to encounter. Chen Wanrong has conducted so many experiments and has only obtained such a large crystal. Unexpectedly, he actually got such a large crystal today. Chen Wanrong was extremely happy and reached out to take it out and took it out. It was very beautiful. When he left the house, he shone in the sunshine, as if he was shining like a diamond.

Ye Tianheng took it from Chen Wanrong, shone in front of the sun, and exclaimed repeatedly: "Beautiful, so beautiful! Better than amber!"

The crystal grains were constantly conveyed in the hands of everyone, and praise sounded from time to time. It was not until I saw it that I stopped.

It’s fast to make a lot of people. A few hundred kilograms of saltpeter are finished at noon. Put the clarification aside and cool it down and precipitate it. Chen Wanrong and the others went to have lunch.

After lunch, I went back to the house and took a look. The cooked crystals began to precipitate. The earliest pot was no longer precipitated, and it was almost done. Chen Wanrong ordered, and the servants poured out the solution and then took out the crystals to dry. The weather is good today, the temperature is high, so it would be better to dry potassium nitrate.

Looking at the white potassium nitrate, everyone talked about it again: "This is much whiter than saltpeter, but it is less." Saltpeter contains a lot of impurities, and the proportion of potassium nitrate is too small, so it is naturally not white enough.

Let them discuss it, Chen Wanrong called Kou Yibing, Liu Huaide and Ye Tianheng to the side and said, "Three, this gunpowder is of great importance. I think we should keep it confidential and not let such secrets be leaked."

The reason why Chen Wanrong mentioned confidentiality now is that he took into account the curiosity of the people and asked them to see the salt. The salt of the salt is not a core secret, so it doesn't matter if they let them see it. He just needs to keep the core secret of the gunpowder.

Kou Yibing glanced at Cao Zhixiong and the others who were discussing it, nodded and said, "Mr. Chen, this is extremely true, and I agree with it. I wonder what you two mean?"

Ye Tianheng frowned and said, "When it comes to mouths, I believe their mouths are very tight, so they don't have to be afraid of knowing them, and they won't leak them out. However, it's better not to let them know such important things."

Chen Wanrong gets along with them, knows that their "awareness" is not low, and there will be no problem with confidentiality. However, this is not a reason to let them know. After all, confidentiality is to prevent it.

Not afraid of ten thousand, just fear of what if.

Liu Huaide pondered slightly: "I agree with this. Let's discuss it, and only let people know who can't know it, and let them scatter. Xiqi has read it, and it should scatter."

Kou Yibing thought for a while: "It's better for the four of us to know about this, so they don't need to know. I'll be responsible for the specific matters, just guide Mr. Chen."

Chen Wanrong is not as familiar with military weapons supervision as Kou Yibing. It is a good idea to be in charge of specific matters. Chen Wanrong has no reason to disagree and smiled and said, "Since that's the case, then there will be Master Kou."

"Mr. Chen, what should I do next?" Guan Yibing asked.

Chen Wanrong browed and said, "There are two more things to do. When these two things are done, it is time to add gunpowder. One is to use sulfur and the other is to use charcoal. Both must be fine and powder." It is not that the powder cannot be mixed evenly, but it will reduce the contact area and reduce the power.

"Okay, I'll do it now." Kou Yibing said nothing.

Liu Huaide came to everyone and coughed, "Everyone, after watching for a long time, it's time to be satisfied. Go back to do your business. Also, I would like to remind you one thing, don't ask if you shouldn't ask."

Cao Zhixiong and the others understood the meaning of the words and knew the importance of gunpowder. No one spoke and they dispersed.

Kou Yibing thought for a while and asked, "Mr. Chen, how many mills are there in the military weapon surveillance to grind sulfur and charcoal. Is it OK?"

This idea is good, Chen Wanrong immediately said, "Okay." The sulfur and charcoal ground with a grinder must be very fine.

After a pause, Chen Wanrong added: "When the saltpeter is ready, you must grind it." The crystallization of potassium nitrate will definitely not be even, big or small, and if it is too big, it cannot be mixed well, which is not conducive to speeding up the chemical reaction, so it is necessary to grind it again.

When it comes to gunpowder, Chen Wanrong knows that wet production, the gunpowder produced by wet is more powerful and more stable. However, Chen Wanrong has not planned to use wet production for the time being, because it is more complicated and requires some equipment. Furthermore, the strength of the current copper cannon remains to be verified. If it is produced by wet, the gunpowder will be too powerful and may explode.

If this is the case, the trouble will be great and a death will occur!

Kou Yibing naturally had no idea of ​​answering and said, "I'll go and arrange it." He strides away. Chen Wanrong hurriedly followed him to see what happened. Kou Yibing called the servants and went straight to the mill.

There were several large millstones in the mill. Kou Yibing asked the servants to bring the donkey and prepare. This was why people brought charcoal and sulfur. The charcoal was too thick and it was inconvenient to grind it. Kou Yibing asked someone to smash it for later use.

It is easy to deal with sulfur. Even if there are large pieces, just squeeze them or smash them down slightly. Kou Yibing decided to grind them first. After ordering, the servant started grinding the sulfur. A servant was a little curious and asked: "Sir, why do you need to grind the sulfur? What's the use?"

Kou Yibing's face sank: "Don't meddle in other people's business and do your own business. Remember, don't tell anyone about what you do today. If you violate it, stay in prison for the rest of your life."

The servant was so scared that he shrank his tongue, stopped talking, and only focused on grinding sulfur.

Kou Yibing's method is good. The sulfur that has been ground through this grinding is much thinner. If used to match gunpowder, it can increase the contact area and accelerate the combustion speed, and the power will be much greater.

The charcoal was almost smashed, so I led the donkey and started to grind it. Last time, Chen Wanrong's charcoal with gunpowder was fine with Wang Zhongze, and he did not use a grinder. At that time, I was just thinking about it and it was not much. Therefore, this method was not adopted. The charcoal was ground and became much thinner, and Chen Wanrong was very satisfied.

Anyway, I have to use a lot in the future, so I grind it hard, the more I grind it, the better, and Kou Yibing didn't stop.

After a while, the potassium nitrate was dried. Chen Wanrong grabbed it and saw that there were many big guys inside, so he should be dealt with. He asked someone to bring the potassium nitrate to the mill and ordered the servant to drive the donkey to grind it.

Last time I was given gunpowder, Chen Wanrong only treated a large piece of potassium nitrate. It was very rough and the power of the gunpowder was quite good. This time, after such serious treatment, it was probably much more powerful. Chen Wanrong was relieved.

When everything was done, Kou Yibing stopped. The servant unloaded the grinding and packed the sulfur, charcoal and potassium nitrate.

"My friend, what should I do now?" Ye Tianheng asked anxiously, "Does it be time to apply gunpowder?"

Chen Wanrong nodded and said, "That's right, it's worth it."

Liu Huaide hurriedly asked, "How should I match this?"

They had seen the magic of gunpowder for a long time. They had always dreamed of making gunpowder early and would succeed soon, so they were naturally anxious. Chen Wanrong smiled and said, "It's very simple. Get the things back and we'll match them."

"Okay, okay!" The three of them agreed without any explanation. Kou Yibing ordered the servants to get the sulfur, charcoal and potassium nitrate back.

The servant knew the matter was secretly involved, so he put down his things and left without waiting for Kou Yibing to speak. Chen Wanrong smiled and said, "If gunpowder is 100 parts, then it will take 75 parts saltpeter, ten parts sulfur, and fifteen parts charcoal. Mixing evenly is the gunpowder."

Kou Yibing was surprised: "This is gunpowder? I thought there was something magical."

Ye Tianheng was also a little difficult to understand and couldn't help touching his forehead: "It's so simple? Can gunpowder be so powerful?"

Liu Huaide was a little unbelievable, but he didn't say it clearly, just said, "Where did you say you went? Will Lord Chen joke about this kind of thing? Of course it's true."

Kou Yibing smiled and said, "The reason is this reason, but this is too simple. Can we not doubt it?"
To be continued...