The craftsman with alum and salt poured the two things into a clay pot, and then mixed half a jar of water into the pot.

Stirring the water with alum and salt with a wooden stick, and when both were dissolved, the craftsman placed the clay pot on a bonfire.

The jar was placed on the campfire, and he added a small opening to it for distilled water to flow.

A guard brought a straw mat for Liu Wei and sat down on the straw mat, Liu Wei frowned slightly, his eyes staring at the clay pot without blinking.

He knew some ways to make acidic substances, but unfortunately the manufacturing process of sulfuric acid and nitric acid was relatively complicated, and only the manufacturing process of hydrochloric acid could obtain materials in this era.

The manufacture of hydrochloric acid has not been done by Liu Wei in the past, and for him, this manufacturing method is also the first attempt.

What he couldn't let go of in his heart was not only whether hydrochloric acid could be made, but also whether the animal's skin could be corroded with hydrochloric acid.

The bonfire **** touched the bottom of the clay pot, and it didn't take long for the water in the jar to boil.

The water bubbled and made a "gurgling" sound, and it didn't take long for the courtyard to fill the courtyard with a slightly sour smell.

Smelling this smell, a faint smile appeared on Liu Wei's face.

"Cover your mouth and nose with a sackcloth, don't smell it!" Stretching out his hand to the side, Liu Wei gave an order to everyone in the courtyard.

A guard took out the sackcloth from his arms, held it in both hands and handed it to Liu Bian, and when Liu Bian covered his mouth and nose with the sackcloth, the other people in the courtyard took out the sackcloth one after another and covered their mouths and noses.

The smell of sour acid is getting stronger and stronger, and the liquid flowing out of the jar is getting more and more.

Looking at the drops of slightly viscous pale yellow liquid flowing out, the smile on the corner of Liu Bian's mouth became thicker and thicker.

He finally made hydrochloric acid, and the next step was to see if those animal skins would be corroded by acid.

The animal skin that can't be burned by the fire, Liu Wei really doesn't have too much certainty.

I can't say it too sure, after all, hydrochloric acid is not as corrosive as the destructive nature of flame combustion.

The liquid flowing from the jar became more and more viscous, and a craftsman lifted the jar from the campfire and turned his head to look at Liu Wei.

Liu Wei waved his hand and motioned for the craftsman to put the jar aside.

After about half a cup of tea, Liu Wei took the sackcloth from his mouth and nose, took a deep breath of the air whose sour taste had receded, and said: "I almost suffocated to death!" ”

Seeing that he had taken away the sackcloth covering his mouth and nose, the people in the courtyard also took away the sackcloth.

The sour smell had dissipated, and everyone took a deep breath after taking away the linen.

"Fetch a branch." Standing up, Liu Wei gave an order to the guards behind him.

"Your Majesty, there's a wedge here." Knowing that Liu Wei was going to drill holes in the animal skin himself, the craftsman hurriedly said.

"It's called hydrochloric acid." Pointing to the liquid in the clay pot, Liu Wei said to the craftsman: "Iron and bronze tools should be placed in them, and they will dissolve, and if you want to use them, you can only take some small branches!" ”

As he spoke, one of the guards had already fetched a very thin branch for Liu Wei.

Bending down to lift the clay pot containing hydrochloric acid, Liu Wei walked to a piece of animal skin, put the tip of the branch in the clay pot and dipped it in some hydrochloric acid, and then pressed the branch stained with hydrochloric acid on the animal skin.

The branches are very thin, pressed against the hide, and there is only a small point that touches the hide.

When the branches stained with hydrochloric acid poked the animal skin, Liu Wei and the people in the courtyard were stunned to find that the hydrochloric acid was stained with the animal skin, and wisps of green smoke came out of the animal skin.

Seeing this scene, Liu Wei suddenly showed joy on his face, and said to the craftsman: "This thing can corrode animal skins, and it can be used for cutting and drilling!" ”

As he spoke, he picked up the branch that had been stained with hydrochloric acid, and sure enough, the piece of animal skin that was pressed by the branch had a pale yellow color.

"Quick! Try to see if you can drill holes! The color of the hides changed slightly, and the craftsman did not delay at all, and hurriedly gave an order to one of the craftsmen.

The craftsman took the wedge, ran to the hide, and poked it lightly at the hide.

With a soft "poof", the animal skin, which was difficult to break with the sharpest awl, was poked out of a small hole.

A small hole was poked out, and the animal skin that did not change color around it was still extremely tough, no matter how the wedge poked it in, it just couldn't be poked in for half a minute.

"How long will it take to make armor with this?" Seeing that the craftsman drilled an eye into the animal skin, Liu Wei asked the craftsman: "How many pairs of armor can be made?" ”

"Hui Yu Xià!" He bowed with his fists and bowed to Liu Wei, and the craftsman said to him: "A pair of animal skins can be made into at least three sets of armor, and there are a total of one hundred and twenty-seven animal skins here, which is enough to make nearly four hundred sets of armor!" ”

Knowing that these animal skins could be made into nearly four hundred sets of armor, a smile appeared on the corner of Liu Wei's mouth, and he nodded and said: "That is the case, as far as you can, the generals in front are waiting to wear it!" ”

"No!" The craftsman clenched his fists and bowed in response.

Glancing at the animal skins that were spread out on the ground, Liu Wei greeted Wang Liu and Wang Zhen: "Go back to the palace!" ”

Wang Liu and Wang Zhen responded together, followed behind Liu Wei with a team of guards, and left the craftsman's workshop.

After Liu Wei left, the craftsmen in the craftsman's workshop immediately started to move.

The perennial zuò armor is made with great skill, and the craftsmen are extremely skillful, and it doesn't take long to divide many animal skins into small pieces.

In the craftsman's workshop, the craftsmen were busy making zuò armor, and Liu Wei and the others, who had left here, walked unhurriedly along the street towards the palace.

Following behind Liu Wei, Wang Liu would retch from time to time.

At first, Liu Wei didn't pay too much attention to it, but after walking for a while, he heard Wang Liu retching continuously, and couldn't help but glance back at her.

Seeing that her face was a little pale, Liu Wei asked, "What's wrong?" Could it be that the body is not refreshing? ”

"Without him, your majesty doesn't have to remember!" Smiling slightly, Wang Liu said softly: "Maybe it's the wind and cold......"

"If you suffer from the cold, you won't retch repeatedly!" His brows furrowed slightly, and Liu Wei instructed one of the guards: "Please ask Mr. Hua Tuo to go to the palace of the imperial concubine and diagnose the imperial concubine!" ”

"No!" The guard answered, spun around his horse, turned around, and left.

Seeing the guards leave, Liu Wei said to Wang Liu: "The body is not good, but if you don't go out with me, why bother to hold on!" ”

was blamed by Liu Wei, Wang Liu blushed and did not say anything.

Although she has been Liu Bian's imperial concubine, Liu Bian has been very fortunate to her recently, Wang Liu still prefers to follow Liu Bian's side as his personal general.

As for the identity of the imperial concubine, for her, it is nothing more than proof that she is Liu Wei's woman.

Back in the palace, Liu Wei didn't go anywhere else, took Wang Liu and Wang Zhen, and went straight back to Wang Liu's bedroom.

Since Liu Wei married Wang Liu, the time spent with her all day was much more than that of being with other imperial concubines.

Although his favor made Wang Liu feel happy in her heart, it also caused the fact that she did not get along well with other imperial concubines in the harem.

In the backyard of the palace, the favorite place for the imperial concubines to go on weekdays is Tang Ji's bedroom, as for Wang Liu, because the relationship between other imperial concubines and her is not very harmonious, she doesn't go to other places, and other imperial concubines basically don't come to her.

Compared with the bedrooms of other imperial concubines, Wang Liu's residence was extremely deserted because there were no guests at all.

When she returned to the dormitory, she found that Wang Liu's face was not very good, and the two palace maids hurriedly greeted her and helped her to the inner room.

Seeing the palace maid helping Wang Liu into the inner room, Liu Wei asked Wang Zhen: "You were with Wang Liu just now, but you found something wrong with her?" ”

"Your Majesty, my sister used to have weak bones, but thanks to Mr. Hua Tuo's conditioning, she is getting better now." Holding his fists and saluting Liu Wei, Wang Zhen whispered: "The last general sees that my sister's face is pale, and it is obvious that her body is not safe, so it is better if the old disease recurs!" ”

Wang Zhen's words made Liu Wei a little apprehensive in his heart.

Wang Liu's body is not good, this is something he has known for a long time.

When Wang Liu assassinated him, he was simply a dying sick man, if it weren't for Hua Tuo's careful conditioning, I am afraid that he would have died in Huangquan.

Now that he is so dignified, he suddenly retched again, which really made Liu Wei unable to let go.

Back in Wang Liu's dormitory, Liu Wei waited anxiously for a small half pillar of incense before Hua Tuo came to the dormitory under the guidance of a guard.

After seeing Liu Wei, Hua Tuo did not delay and hurriedly entered the bedroom.

Wang Liu didn't fall asleep, although Liu Wei asked her to lie on the bunk cover, not to move lightly, she still felt uncomfortable lying down, just sat cross-legged on the bed.

Seeing Liu Biao leading Hua Tuo into the bedroom, Wang Liuqiao blushed and said to Liu Bian: "The concubine is just occasionally cold, Your Majesty doesn't need to bother Mr. Hua Tuo......"

"If you feel a cold occasionally, if you don't heal it, it will also cause a serious illness!" Sitting next to Wang Liu, Liu Wei greeted Hua Tuo: "Please diagnose the imperial concubine!" ”

Holding his fists and bowing down to confess to Liu Wei and Wang Liu, Hua Tuo said: "The annoying princess stretched out her hand. ”

Turning his head to look at Liu Biao, Wang Liu looked reluctant to stretch out his hand, but seeing Liu Bian's eyes full of concern, he didn't dare to disobey him, so he had to purse his lips and hand his hand to Hua Tuo with a red face.

Holding Wang Liu's wrist, Hua Tuo carefully diagnosed.

At the time of diagnosis, his face changed suddenly, first with a happy face, and then as if he felt that something was wrong, his brows were tightly frowned, and his face was entangled.

Staring at Hua Tuo, Liu Wei saw the strangeness on his face, and his heart immediately rose to his throat.

"What's wrong? Could it be ......" Before Hua Tuo could open his mouth, Liu Wei couldn't help but ask in a low voice.

"Majesty!" Letting go of Wang Liu's wrist, Hua Tuo stood up, clasped his fists and bowed to Liu Wei, the entangled look on his face did not fade at all, and said: "The imperial concubine has a strange pulse, and her subordinates have been practicing medicine for many years, and she has never seen such a strange pulse!" ”