In the wing room, a ray of morning light shone in along the window, illuminating Yuan Chenming who was lying on the table. He was writing a project plan.

Collect raw material formulas, make molds, and assemble them. Carpenters, blacksmiths, and one to do odd jobs.

He had a headache when he bit the pencil head. Obviously, this was not something he could do alone, and he had to find someone who could take charge as his helper.

Dongdongdongdongdong, instructor Wang Desheng knocked on the door that was not closed: "Where are you writing?"

Yuan Chenming's eyes lit up, "Instructor, you are here just right, I have something to come to you."

"Is it you who bet with the team leader?"

Wang Desheng obviously heard about it, maybe he came to him because of this.

I had already eaten at the kitchen team of the Governor’s Department last night. It was already very good to have meat and vegetables, so it was time to take some action.

He said: "Instructor, this is the matter. I can't eat and drink for free with you. I have to prove myself. But now when I encounter a problem, I have to help me."

How can one say that eating and drinking are for nothing? As long as one can stay and join the Eighth Route Army, he will be his own comrade.

Wang Desheng wanted to talk about him, but when he thought of the student, he was thin-skinned. Besides, it might have the opposite effect, so he suppressed his thoughts.

"Okay, you can tell me what you want to do, and I can help you with anything, even if you say it."

"Instructor, what I'm waiting for is your words." Yuan Chenming took his plan and rendered his grand blueprint.

There is no doubt that painting a big cake when talking about dreams can directly stimulate people's adrenaline secretion, which has been tried and done from ancient times to the present.

Half an hour later, Wang Desheng appeared directly in the pigpen in the village as Yuan Chenming's assistant.

He took the shovel borrowed from his fellow villager's house and patiently shoveled down the purple-red dirt in the corner of the pigpen little by little.

I didn't take the old sows in the circle seriously at all, and the smell seemed to be unheard of.

The owner of the old sow, the old man, stood outside the pigpen and watched it strange. He had only heard of the Eighth Route Army chopping firewood and carrying water for the villagers, but he had never heard of the Eighth Route Army helping to clean the pigpen.

It was too wasteful to run into his pigpen to shovel mud.

After working hard for a long time, Wang Desheng shoveled half a basket: "Xiao Yuan, do you think this is OK?"

"Instructor, I have to test it before I know it." Yuan Chenming stood five meters away, covering his mouth and nose with his hands to block the stench.

The habit of loving cleanliness drives him to never dare to step in there. If he is really allowed to do this alone, the first step may be to fail.

Of course, maybe.

Nitrogen soil generally exists in toilets, pigs, cow pens, old walls in courtyards, cliffs, caves, and grounds that are not easily washed by rain.

The three locations are connected with Mitian, which is very telling.

In a basket with oil paper, some soil with a slight strange smell was stored, and some soil was dry and purple-red.

"Did you want this thing?" Wang Desheng was unsure. It was hard to believe that this thing could become an important part of explosives.

That is, he went to elementary school for a few days, studied some books, and had a certain understanding of science and technology, so he became skeptical.

If it were a rough man who knew nothing, he would definitely think that it was a scholar telling stories and coaxing ghosts.

Indeed, let alone him, Yuan Chenming himself was not sure. As a citizen who abides by laws and regulations, he could not have tried such a thing before, illegally making and possessing explosives. He started for three years and had no cap.

He would do such a thing only after he had a twitch in his mind.

The situation is different now, there is no restriction, and he can do this thing. However, he has no experience and can only read the text and realize the knowledge he has kept in his mind bit by bit.

He recited: "The nitrification soil is damp and not easy to dry. It turns slightly purple-red after exposure to the sun."

Wang Desheng widened his eyes and observed the soil in the basket. The dry soil was somewhat purple-red.

"Most of those with nitrosoil are covered with soil and face, with ants-shaped particles, bitter, spicy, and salty flavors. The ones with especially spicy taste are good nitrosoil."

Wang Desheng observed as he said, and it seemed that it was so meaningful. But just by looking at it, he was worried, so he pinched a small rub of the purple-red soil.

"Oh, don't!" Yuan Chenming just reached out to stop him, but it was too late. Wang Desheng quickly put the soil on his tongue and tasted it.

"Ph, ph, ph, ph, ph." Wang Desheng gave the answer he came to after dedicating himself to science: "It's bitter and salty, and spicy. If you say it, this is a good nitro earth."

Yuan Chenming swallowed his saliva and couldn't help but give a thumbs up for the instructor's dedication.

Anyway, he can't do it, and he can't do it even if he beats him to death.

What's more, there is no better way. Good nitride soil will burst into sparks when it is placed on the scorching charcoal.

For them, it's just a matter of spending more time.

???

Wang Desheng was stunned and looked at Yuan Chenming awkwardly and politely.

"Will you say it earlier next time?"

"Sure, certain."

The instructor is not afraid of hardship or dirty things. But he is not willing to suffer any sins that are not necessary.

Even though you know that there is a better way, you still have to suffer. That is not called suffering, that is cheap.

The two masters did not bother with each other, so they borrowed a stove fire from the owner of the family. The two continued to verify whether the nitrile soil was the substance they needed.

A little purple-red nitroso soil was sprinkled on the scorching charcoal fire, splashing out sparks.

"It's this thing, it's confirmed." Yuan Chenming was very sure this time.

When he was a child, he took apart the unexploded firecrackers and made out the black powder inside and sprinkled it in the stove, which was the same as this one.

Wang Desheng also smiled with an old face, and he could burn out sparks. It seemed that Yuan Chenming's big cake was really possible.

"By the way, there are still some in the pigpen. I'll dig them all back." He ran towards the pigpen excitedly with a basket in his arms, as if he was afraid that someone would rob it.

It made the old man even more confused. The soil could burn, but it became a hot commodity.

Yuan Chenming had no choice but to explain to his fellow villagers, don’t let him burn the soil.

At this point, the raw material of nitroso has been confirmed to be collected.

But this is just the beginning. Nitrogen soil cannot be used directly. It requires water extraction to replace the extraction of potassium nitrate, and finally boil it by soil method. These two are very important steps. They also involve some chemical knowledge.

The main principle of extracting potassium nitrate from nitrosodium is to use potassium ions in wood ash to replace sodium ions in nitrosodium to produce potassium nitrate.

In addition, the carbonate ions and sulfate ions in the wood ash form with the calcium and magnesium ions in the nitrosodium to form insoluble salts and precipitate, thereby removing impurities such as calcium and magnesium.
Chapter completed!