The rumbling thunder sounded in his ears, and an unexpected change appeared in Jiang Xingchen, and the Yuan Control Array did not develop, but the Yuan Quan in his mind began to change, as if he was breathing, shrinking one by one.

"What's going on?" Jiang Xingchen was a little puzzled, this situation was completely unexpected. However, he did not stop to check, but continued to operate the breathing method.

As the heat flow converged more and more, Yuanquan's contraction became faster and faster, and finally reached its peak, and the explosion shook Jiang Xingchen's consciousness a little confused.

When Jiang Xingchen's consciousness regained again, he found that the Yuan Spring in his mind seemed to have become bigger and brighter, and his whole mind had become a bright starry sky.

I don't know when, the Yuan Control Array was also successfully activated, although it was only a shallow layer, but he could perceive the Yuan Qi around him more clearly. Moreover, he also found that those vitality was guided by the vibration of the Yuan Spring, and it seeped into his body little by little.

"Hey! This is what the warriors call the introduction of the body! Can I ...... I'm the second Olympics!" As soon as Jiang Xingchen thought about whether he could practice martial arts, he immediately felt a sharp pain that exploded.

"Nima~ I haven't thought about it yet!" Jiang Xingchen scolded in his heart, this mist said that he would not be allowed to practice martial arts if he died.

After calming down a little, Jiang Xingchen couldn't help but think again: "I can introduce Yuan into my body, but I can't practice martial arts, what is the effect of that formation......

Soon, he understood that the wisps of vitality entered the body, and all of them were integrated into the formation, and then he felt that the vitality around him seemed to be able to be controlled, guided, and gathered together.

"Is the vitality gathered! in order to introduce more vitality into the body?" this question flashed, and he immediately realized that even if he gathered more vitality. It can't be introduced into the body, and the vitality can only enter in wisps, and it is very slow......

The heat flow disappeared, Jiang Xingchen's breathing method stopped, and the gathering into a walnut-sized mass of vitality dissipated into the air, and he finally failed to figure out the use of the vitality gathering.

"Forget it, I don't want to! It must be the same as before, and I don't know when, the effect will be highlighted. Shaking his head, Jiang Xingchen turned around and walked back to the village.

Two days after that. Jiang Xingchen was observing the beehives on the back hillside, and it was similar to what he expected, and more than a dozen beehives were soon filled with bees.

In the past two days, Qingshan Village is still bustling and bustling, especially at night. The villagers who were busy with farm work in several surrounding villages all ran to the mouth of the mountain to look at the picture scroll of the galaxy hanging on the cliff. Let out a cry of admiration.

Every time this happens. The villagers of Qingshan Village will also go over to take a walk around and enjoy the envious eyes of others, while the little girl Nier dragged Mei'er and boasted to others in a milky voice: "Look, this is what my sister Mei'er painted, it's amazing!"

Mei'er was a little embarrassed though. But listening to the praise around him, he couldn't help but secretly purse his lips and smile.

Although Dingbei Hou and Tang Chuxue were anxious, they also knew that this matter was not in a hurry, and they were extremely bored. I studied chess, and it turned out that I was addicted to it all at once.

The old man was naturally ecstatic when he saw it, and immediately joined in...... As a result, Jiang Xingchen heard Tang Chuxue burst into foul language for the first time.

On the fourth day, Jiang Xingchen was observing the growth of sesame seeds and sunflowers in the field, and Han Xiaowu came to report that Qin Manwu and Jun Immortal had arrived.

"So fast!" Jiang Xingchen was stunned when he heard this, it took more than a day for Suying to send a message, but it was more than three thousand miles away from here, and it would take four days to arrive.

Hurriedly returned to the Lord's Mansion, and the moment he saw the two of them, Jiang Xingchen understood why they came so quickly, both of them had big dark circles under their eyes, no need to ask, they must be in a hurry day and night.

"We rushed day and night, and eight horses died in one run!" Qin Manwu explained, then took out a hundred catties of mineral salt, looked at Jiang Xingchen, and looked at him with a little eagerness: "Lord Jiang, I'll hand it all over to you!"

"Hey!" Jiang Xingchen shuddered: "Eldest sister, don't be so ambiguous when you speak, don't do it, what do you mean to leave it all to me, I'm only seventeen years old, so ......"

Shaking his head, Jiang Xingchen hurriedly suppressed the dirty thoughts that came up.

Who knows, Qin Manwu saw Jiang Xingchen shaking his head, his expression suddenly changed, and he asked eagerly, "What, can't it?"

The old man, Tang Chuxue, and Dingbei Hou also showed worries, and now they hope that it is all on Jiang Xingchen, if not......

"I can only try, I'm really not sure, you don't have too much hope!" Jiang Xingchen explained, and then beckoned Xiao Wu to pick up the mineral salt and walk out, leaving a group of people with heavy hearts.

Of course, he can't say it all, this world is different from the earth, and who knows if the knowledge he learned in middle school can be used.

When he came to the courtyard, Jiang Xingchen opened the bag and took out a handful of mineral salt, all of which were large crystals, which looked crystal clear, except for a few abnormal colors, there was nothing unusual at all.

"This salt looks good!" Jiang Xingchen said secretly, in his previous life, he had only seen mineral salt on pictures, and he had no intuitive cognition. But this mineral salt looks quite good, and I don't want to look like a problem no matter how you look at it.

"The more this is the case, I'm afraid the more difficult it will be!" Jiang Xingchen muttered, took out a few pieces of mineral salt and threw them into the basin, and then added water to dissolve them......

Qin Manwu and the others walked out of the room, standing behind Jiang Xingchen, looking at him busy there, all with nervous expressions.

"What is this kid doing, how do you throw all the salt into the water?" asked the old man in a low voice.

"I don't know, just look at it!" Tang Chuxue shook his head.

"Why did he stack so much white silk and pour water on it......"

"Look carefully, don't speak, it will affect him when you turn around!" Tang Chuxue frowned.

"Hey, how did he get the charcoal......

"Shut up, old immortal!"

For a whole morning, Jiang Xingchen tried and tested, and the charcoal filtration method was used. The people behind finally understood that he was worrying about impurities. I couldn't help but sigh, filtered with charcoal, they didn't even think about it.

However, although the impurities in the mineral salt were filtered a lot, the salt water was still bitter, which couldn't help but make Jiang Xingchen a little frustrated.

"Lord Jiang, can't you?" Qin Manwu asked worriedly.

Jiang Xingchen was silent, in this case, there must be impurities that are also soluble in water, but he can also use the crystallization method to try, but he doesn't know the nature of impurities at all, whether they can be separated, he really has no bottom in his heart.

"Boy, is there really no hope?" the old man also frowned and asked, compared to the larger Qin Kingdom, the Qiankun Empire was more affected.

"I'll try something else!" Jiang Xingchen exhaled slowly.

Evaporation crystallization uses the difference in the solubility of substances in water to separate substances in the order in which they are crystallized.

Jiang Xingchen asked the old man to do it, dug a small salt pond with a stone, and poured the saturated solution into it.

Under the exposure of the sun, some impurities were indeed separated first, but the salt behind was still bitter.

"I'm going!" Jiang Xingchen couldn't help but scold, this is too outrageous, what kind of substance is it, the solubility is similar to table salt, and it is precipitated almost at the same time.

After a whole day of work, although a lot of impurities were separated, the final result was still a failure.

At this time, Qin Manwu, Jun Immortal, Old Man, Tang Chuxue, and Dingbei Hou were already hopeless, and Jiang Xingchen's depressed expression was in their eyes.

"Even this kid can't do anything, it seems that he really can't do it!" The old man glanced at each other and shook his head helplessly.

At this moment, an eagle roared in the sky, and a speed eagle fell.

"Letter from the Imperial Palace!" Jun Bu Xuan grabbed the speed eagle, untied a cylinder from the eagle's leg, poured out the white silk inside, and handed it to Qin Manwu.

"Hey~" Qin Manwu, who opened it to watch, sighed heavily: "Xuanyuan Tianzong is pressing too hard, my father can't bear it anymore......!

"It seems that we have to give up the desert line!" Jun Immortal shook his head regretfully and said, "I'll send a message to the emperor......"

"Wait a minute!" Jiang Xingchen suddenly interrupted Jun Immortal: "Wait for me for two more months!"

The old man, Dingbei Hou, and Tang Chuxue were all stunned, they had never seen Jiang Xingchen's expression so strict.

"Forget it!" Qin Manwu shook her head, she didn't have much hope after a whole day of continuous failure.

"If you want to send a letter, just send it!" Jiang Xingchen didn't explain anything else to Qin Manwu, and squatted down again and got busy.

Qin Manwu and Jun Immortal glanced at each other, but in the end they still didn't send a message to the Great Qin Kingdom.

Middle school knowledge, after so many years, although he has forgotten a lot, Jiang Xingchen also remembers that there are several crystallization methods, not just evaporation crystallization. He'd been trying to remember what else was available.

At the moment when Jun Immortal was about to send a message to the Great Qin Kingdom, he finally remembered that there was another way to cool down and crystallize.

Cold water heating, with the continuous increase of temperature, the solubility of the substance also continues to increase, when the solution is completely saturated, Jiang Xingchen extinguished the fire, carefully observe the changes in the solution!

The attention of the people around him was highly concentrated, and they couldn't help but hold their breath, for fear that the slightest movement would disturb Jiang Xingchen.

Time passes slowly, and as the temperature of the solution drops, a layer of crystals slowly forms on the surface of the solution.

Jiang Xingchen scooped up a little and licked it, immediately grinned, and spit out a few mouthfuls in a row, bah, it's not this!

Skimming off the layer of crystals, Jiang Xingchen continued to wait, and soon, more and more crystals were precipitated.

Jiang Xingchen's hand was very fast, and after a slight attempt, he immediately skimmed off the impurities......

Finally, after Jiang Xingchen tried to put the precipitated white crystals on the tip of his tongue again, the corners of his mouth finally hooked.

"It's done! That's it, it's done!" Solving practical problems with the knowledge he has learned, this feeling is so refreshing, Jiang Xingchen couldn't express the excitement in his heart, and couldn't help but slap the ground hard, making a snapping sound. (To be continued......)

PS: Thank you again for your support!