Huang Li still has the big ruby ​​in his hand, and he always carries it with him. What if he wears it back one day? This big treasure is enough to lie down and enjoy, and to eat and drink well.

Attendant Yun Shu stood in front of Huang Li, applying a cold towel to His Highness's face. Suddenly, he felt strange, and his hands, covered by his wide sleeves, had reached his chest.

Biting her lower lip lightly, Yun Shu stole a glance at Yumo not far away. Her face was slightly red, but she didn't say a word, but the movements of her hands were a little panicked.

Yumo looked out from the window, turned around and walked out, and her voice of lecturing the maid could be heard outside.

Yun Shu breathed a sigh of relief. Fortunately, he was not discovered. Otherwise, it would be so embarrassing and he would have been laughed at by her for days!

After a feeling of soaring through the clouds, Yun Shu had been hugged into a generous and warm embrace by strong arms, and her subconscious screams were muffled in her small mouth.

………………

In ancient China, sulfuric acid was called "green vitriol oil". During the reign of Emperor Gaozong of the Tang Dynasty, there was a record of the "method of refining stone gallbladder to extract the essence", that is, dry distillation of stone gallbladder to obtain sulfuric acid.

Litholith is copper sulfate pentahydrate, also known as gall vitriol. It is mainly produced in Yunnan, Shanxi and other places, and is mainly used as a traditional Chinese medicine.

Sulfuric acid can also be obtained by using saltpeter and green vitriol (ferrous sulfate) to isolate the air and increase heat, that is, dry distillation.

………………

Combining resources from eight provinces, the raw materials are relatively sufficient, so Zhang Yong is certainly full of confidence.

But there is not a key factor that determines the strength of the battle. It is not money and food. If food is scarce and pay is high, who will work for him?

While Zhang Yong was guiding and supervising, he was also deducing the development of the situation before the strategic change.

You should know that during the Anti-Japanese War, the Fourth Route Army used the method of burning and absorbing sulfur when producing sulfuric acid.

As for the army, Zhang Yong is very worried.

However, in Baoning City, the Qing army followed by Wang Jinbao encountered fierce resistance from the Ming army, which was well prepared. They suffered heavy casualties due to the fierce firepower.

Guangyuan.

Yun Shu glanced at Gan Shaanlu, shook his head helplessly, and said: "As time goes by, people's hearts can become resentful because of a moment of grievance."

"It should be even more unfavorable for conservative Manchu nobles such as Obai to take power. Our suspicion of Han officials and generals will become the trigger and catalyst for fewer and fewer Han officials and generals."

The alchemists of the Tang Dynasty could produce green vitriol oil using alchemy furnaces, so naturally Zhang Yong would be worse than us.

Yun Shu felt a sudden change in his heart. He felt happy in his heart, but he still suppressed his anger and said calmly: "Nowadays, the bandits have stronger troops and tight defenses than in the past, and there is no navy to help them. Your troops have the upper hand.

It’s really difficult to break through.”

Boom! It explodes on contact. The solution to the delay fuze is certain, which can be said to be a small increase in power.

"Admiral Zhang, what does he think?" Fang Xingcong suddenly turned to Yun Shu and asked with a half-smile: "Back then, he also took the Baoning and Chongqing road with Warka, and retreated to the southwest, right?"

To put mercury fulminate into a large paper tube, you need to prick it with a needle, smash it with a hammer, or throw it to the ground. When Zhang Yong holds it in his hand, you will know it is successful.

Fang Xingcong stared at Yun Shu and said in a deep voice: "Admiral Zhang, what does he think?"

Today, Wang Jinbao and Huang Li held a military meeting. It was originally a very unusual thing, but the atmosphere was not weird.

Gan Shaanlu was stunned for a moment, but did not immediately agree. Instead, he looked at Chief Yun Shu.

"It's too much to bully someone." Gan Shaanlu followed Yun Shu. When he saw that he was far away, he became angry and said to Yun Shu: "That's because I am suspicious of you, so I want to divide and conquer."

"You just need to understand the principles and just follow the steps to produce it."

Without the bronze ten-pound cannon, rifles and delayed rockets, plus the various captured artillery pieces, the weapons and equipment are not inferior to any Qing army.

Zhang Yong raised his head, glanced at the bewildered craftsmen, and said with a smile: "Now, it is up to them to operate, and the lonely king will give guidance and supervision."

The daunting trenches, the artillery bombardment from below the city, and the sharp armor-piercing guns, combined with blunderbuss and crossbows, enabled the Qing army to retreat several times and successfully advance.

"Those are the results that can be seen overnight." Huang Li shook his head and said: "Chaotian Pass is crucial to your army. You have discussed with General Wang Jinbao to dispatch young generals and weak troops to guard it.

, Only then can we ensure that the small army has a safe future."

Even without relatively abundant raw materials, preparations were quite complete afterwards, without Fang Xing's superpower assistance. It took Fang Xing two days to complete those steps and prepare a few grams of mercury fulminate.

"The enemy in front of us has a strong force and no navy to help us. It is difficult to win. The general has sent a message to the court, requesting more troops." Wang Jinbao squeezed the pimple under his face in an imageless manner, and twisted the big pus plug in his hand.

It bounced off again.

Huang Li also nodded in appreciation, and Sun Sike's eyes flickered, knowing what he was thinking.

In order to produce sulfuric acid as quickly as possible, Huang Li chose the ancient method of Chinese alchemists after repeated weighing and deduction, which was not the distillation of bile alum.

Previously, the Ming Navy moved along the river. The Qing Army was afraid of being cut off, so they had no choice but to return to Guangning and set up artillery positions along the river bank to prevent the Ming Navy from retreating north.

Adding equipment and expanding production. Even a large-scale workshop-style production method can produce a small batch of explosive rockets for the Navy within a few months. This will also allow the Navy to regain the overwhelming advantage and once again cross the Yangtze River.

.

In fact, even if the two acids are mixed together, it can also be used to prepare mercury fulminate, but the purity is sufficient, so I decided not to be lazy.

Shaoluo Shuncheng County Prince Le'erjin followed the Four Banners and Green Camp, crossed the river from Jingzhou to Hunan, and was retreating to Guizhou; the new Xi'an General Wang Jinbao and Anxi General Huang Li also launched a retreat towards Baoning.

That's something everyone knows and takes very seriously. Huang Li's deputy, Hu Libu, is currently stationed at Chaotian Pass.

After sulfuric acid is produced, saltpeter is added and regenerated and cooled in the lead chamber to cause it to react. Using the principle of preparing volatile acid from volatile acid, nitric acid can be obtained by regenerating and condensing.

Yun Shu's face suddenly became brighter, he frowned and said: "Since the two generals haven't discussed it yet, I have my own reasons to follow it."

It was the first flash cap in history. Although it was luxurious, it was made of paper and had a large copper cup pressed back. Well, it was also very poorly pressed, so it had to be made by hand without rolling equipment, which was troublesome.

Dissolve mercury in nitric acid and mix it with ethanol to produce mercury fulminate.

Varkha's sudden reaction disrupted the Qing court's planned plan of a massacre. Now they can only bite the bullet and retreat in two directions.

Gansu and Shaanxi produced elite troops, which was determined by personality and not because the land was barren and the people were poor. The Ming Dynasty's Eight-sided Army, Shun Army, and Xiaoxi Army also came from here.

Historically, the large-scale preparation of sulfuric acid began in the second half of the fifteenth century. The raw material at that time was green vitriol, which was decomposed by heating and absorbed to produce sulfuric acid.

Compared with the extremely easy and unavailable conditions at this time, Zhang Yong deeply admires and respects the wisdom and selfless spirit of scientific and technological workers at this time.

Of course, the entire production process was completed through trial and error. Fang Xing was extremely serious, worked with the craftsmen, and made detailed observations and records.

As for Wu Sangui's camp, Fang Xing and others have changed their thinking and are too slow to retreat to the northwest.

After all, it is left to the craftsmen to do it. We don’t have Zhang Yong’s theoretical knowledge. We can only know what is happening and why, and produce according to the well-established processes.

When a batch of things of various shapes that could barely be called glass containers were blown out and the lead utensils were made, Zhang Yong was finally able to start making sulfuric acid and nitric acid.

What's more, without such a small supply of food, the Qing government would dare to mobilize too few troops for fear of causing mutiny due to lack of food and excessive pay.

The military meeting was over and everyone went in one after another.

Huang Li cast his eyes on Gan Shaan Lu and said with a smile: "General Wang, please lead two thousand troops and set off tomorrow to Chaotian Pass to assist in the defense."

Attract as few Qing troops as possible to the south of the Yangtze River, then cut off the Yangtze River and completely suffocate them. One battle can determine the situation in the sky.

I said calmly: "With the Varkha rebellion, the bandits are no longer contained, and they can defend northern Sichuan with heavy troops. It is no longer possible for your army of more than 80,000 troops to attack."

More than 80,000 Qing troops have not yet been stationed in this important area, and they have launched tentative battles and confrontations with the Ming troops in Baoning.

Did the Qing government want to deploy fewer troops? Wang Yizheng also took away 27,000 soldiers from Wu Sangui's camp to guard the Gansu-Shaanxi border fortress. According to the establishment of Wu Sangui's camp at that time, how many troops could be spared?

Lieutenant General Gan Shaolv secretly clenched his fists, lowered his eyes, and felt a little angry.

Wang Jinbao chuckled and asked no more questions, but a haze flashed across his face.

Huang Li still looked like a human being, but his eyes fell on Gansu Admiral Yun Shu and my deputy general Fang Xingcong.

Sun Sike, the commander-in-chief of Gansu Province, blinked his eyes and said: "Qinzhou and Lueyang need to build fewer ships and increase the supply of food and grass materials so that they can be stationed in Guangyuan for a long time. The navy must also be established to go up the river to defeat the bandit navy.

Then Baoning can be taken by fighting."

We cannot look at the problem from that perspective. Wu Sangui camp may become the mortal enemy of the Ming army, but instead become a help to overthrow the Qing court.

But at this time, there were a lot of raw materials for making lead chambers, so we had to use a small vat made by ordinary people for pickling vegetables, and successfully prepared sulfuric acid using the "cylinder tower method".

"Admiral Zhang knows a small body and takes care of a small situation. I admire him very much." Wang Jinbao leaned out of his chair, seemingly feeling relieved.

Having lost a small amount of troops and the wealth of the southeast, the Qing government was either struggling to its death or dying!

"The influence of Valkha's anti-Qing public opinion is still expanding, and the Ministry of Military Intelligence's counterinsurgency operations are also in full swing, and the chaos caused is not likely to intensify. Let's let the bullets fly for a while longer and let the suspicion become more intense!"

Fang Xing pursed his lips slightly, showing a faint smile.
Chapter completed!