"What a show!" The people couldn't help it, and someone said something. Pen & Fun & Pavilion www.biquge.info

Then, someone started picking up the stubble!

"It stinks, it stinks!"

"No, it's a sassy and smelly ......" I picked up two masks to protect my mouth and nose in my life, but it was still useless, and I wished that ten hands would cover my face at the same time.

"San Lang, what are you messing with, what the hell is this?" I can't help it all my life.

Liu Yuanshan smiled wryly, and put all the masks prepared on his face, which seemed a little insufficient.

He can understand that a few people have not smelled this smell, but in the 21st century, he has smelled this thing, and this is the smell that often comes out of fertilizer factories, okay? And, it seems, it's a little different.

What comes out of the fertilizer factory is a pungent smell, but what comes out of this pot, in addition to the pungent smell, there is also a scorching smell and a foul smell, which is very unpleasant, even if you block your nose and gagged your mouth, it is useless.

Because of this thing, he has so hot eyes, okay?

"Hold back, it'll be fine for a while!" Liu Yuanshan patted Shengsheng's shoulder to comfort him, and then said to everyone: "Manly man, I'm not afraid of bleeding and losing flesh, and I'm afraid of this little smell, so stand for me and take off all the masks for me." ”

Although the taste is a little bigger, Liu Yuanshan knows that the smell is not poisonous and cannot kill people.

The people were helpless, and they took off their masks one by one with a hopeless mentality, and suddenly, there was a "cough" sound below.

"Turnips, cut turnips for me!" Liu Yuanshan pointed to the carrot and said.

Carrots are also imported products, when exactly when they were introduced into China is not clear, anyway, in the Song and Yuan dynasties are about the same, the Ming Dynasty Li Shizhen "Compendium of Materia Medica" recorded: Yuan Shi began from Hu Di, the smell is slightly like radish, hence the name. So no matter when carrots were introduced, it is true that they were cultivated on a large scale during the Ming Dynasty.

The carrots are cut into pieces, and then put into the cauldron of boiling nitrate, which can absorb some impurities that are difficult to remove, and Liu Yuanshan doesn't understand the specific principle, but as long as you do it according to the book of God, there is no need to worry about everything. Guess it's nothing more than a similar effect to activated carbon.

With tears in their eyes, they cut the gourds into small pieces, and then put the chunks of carrots into the stinky cauldron with tears in their eyes, hoping that the thing would deodorize.

Carrots do have a partial deodorizing effect when they are put in the pot, but they are minimal.

Everyone thought that the scene was too smelly, and Song Qiu, who was burning the fire below, stood up angrily and said, "Stinky and smelly, if any of you are too stinky, change it for me, and you can try to burn the fire." ”

So, everyone was silent.

The fire is next to the big iron pot, and the smell there.

Well, it's sour to think about.

But the most smelly thing is not Song Qiu, but Bian Keng, who is standing next to the pot and constantly observing the situation in the pot with tears, this young man who is more than one meter eight has tears in his eyes, and then after Song Qiu finished speaking, he came to a faint sentence: "Brother Song, cough cough, come, cough, cough, come on, we, we, two change!" ”

"This, forget it, you're big enough to see the pot, I'm too short to see clearly!" Song Qiu hurriedly attached himself to the ground, picked up the firewood and began to continue to burn the fire.

At this moment, he suddenly felt that lighting a fire was also a good job.

The principle of cooking nitrate is also very simple, it uses a good physical property of potassium nitrate.

At this time, there are a series of impurities such as potassium chloride, magnesium chloride, magnesium sulfate and so on in the nitrate water in the pot, but it is very difficult to purify, but potassium nitrate has a physical property that is not the same as these substances, that is, solubility.

The solubility of potassium nitrate increases with increasing temperature, and once the temperature decreases, it will precipitate in water, while the rest of the impurities will not.

Liu Yuanshan used this characteristic of potassium nitrate to fully heat the solution.

The water in the pot became less and less under the boiling of the fire, and gradually, some white crystals began to precipitate.

Bian Keng, who was standing above and watching, reached out and picked up the white flag and shook it, indicating that the potassium nitrate solution was saturated at this time.

Liu Yuanshan immediately organized people to scoop out the nitrate water in the cauldron, pour it into a small pottery, put it next to it and start cooling, and when the water temperature gradually dropped, the solubility of potassium nitrate decreased, and more and more potassium nitrate crystals precipitated out.

Although there are still a small amount of impurities in it, it is enough to use it to make gunpowder.

Waiting for a few jars to cool down completely, Liu Yuanshan ordered people to put the water in the jars into a container for special storage, and keep it for fertilizer fields, these waste liquids contain nitrate ions, and there are many potassium ions, that is, there is nitrogen, potassium, and the three most important elements of agricultural fertilizers, nitrogen, phosphorus and potassium, are missing a phosphate fertilizer.

I don't know how many times better it is to use this thing to fertilize the fields than those organic manures!

As for phosphate fertilizer, it is basically used more in saline-alkali land, and not much is needed in ordinary fields.

After the waste liquid is collected uniformly, the remaining white crystals in the jar are potassium nitrate, Liu Yuanshan put all the potassium nitrate in the jar together, put it on the white cloth that has been prepared for a long time, and take it to a place with sunlight to expose it to the sun, and after the moisture is removed, it can be divided and stored for later use.

Potassium nitrate, one of the three main materials of gunpowder, has finally been settled.

Liu Yuanshan breathed a sigh of relief, there was only one of the three main materials left: sulfur!

Next, continue to boil!

Repeating the process just now, this time there was no need for Liu Yuanshan to personally command, everyone spontaneously did their own work, began to shovel sand, wash sand, and then get the washed water into a large iron pot to boil.

The first in his life to run to work in the nitrate pool, opened his mouth wide and took a deep breath of fresh air, although it was filled with the smell of feces and urine, he smelled like a fragrance, and finally muttered, "This air smells so good." He almost bent over with a smile.

For a whole day, the sand in several nitrate ponds was all boiled, and all the washed sand was laid back into the nitrate pond for reuse, and the coarse sand was once again covered with a thick layer of feces and urine, and the feces and urine were covered with hay, and a new round of fire and nitrate production began again.

After a whole day of labor, Liu Yuanshan collected and dried all the fire nitrate and put it into a dry jar, took it home and weighed it with a weighing rod, which was almost a hundred catties.

The coarse sand in all the nitrate ponds is almost more than 2,000 catties, and only 100 catties of fire nitrate came out after boiling, which is basically close to 5%, not much, of course, at present, it is enough.

Back in the house, Liu Yuanshan took out a handful of purified potassium nitrate, came to a no-man's corner, lit a branch on the ground, and when the branch fire was extinguished and only a dead fire remained, he sprinkled a handful of potassium nitrate on the dead fire.

"Snort......" The flame that had just been extinguished instantly burst out of the flame.

Liu Yuanshan nodded with satisfaction, the fire nitrate was finally successfully made, and the next step, sulfur.

(The author just needs the plot, and wrote a fire and nitrate method, which is dangerous and accompanied by a huge smell and poisonous, so readers must not try it...... (To be continued.) )