Liu Xu was wrapped in a thick layer of water-soaked quilt, and let two domestic servants carry a water-soaked bamboo mat in front of him, and remotely commanded the craftsmen of several dyeing workshops to operate. Pen % fun % Pavilion www.biquge.info

The thick quilt and bamboo mat didn't give him much sense of security, but he was born out of nothing, after all, the thing he let people operate was saltpeter, and the mixture of this kind of thing was a big killer, not to mention after experiencing chemical changes?

Several craftsmen seemed to be unable to understand Liu Xu's caution, they piled firewood on the outside of a large ceramic tile pot, this tile was placed in a hundred catties of saltpeter, the wall of the tile on one side of the tile was carefully cut a hole, connected to another tile with a ceramic pipe, and the other tile was put in water. What is strange is that the clay pipe protruding from the ignition clay pot is not directly inserted into the second clay pot, but turns around in the air and draws a big "several" shape.

"Childe, which one are you playing?" Although the bamboo mat is not heavy, it is not easy to carry it for a long time after it is wet. Liu An changed the bamboo mat from his left hand to his right hand, waved his arm that was a little numb, and asked Liu Xu respectfully. Since he was trained, he has become a little more cheerful, and even dares to take the initiative to talk to Liu Xu, which is somewhat an improvement.

"What your son-in-law wants to build is a big killing weapon, you hold it well, this thing is very dangerous!"

"The Big Killer?" Unable to comprehend this modern language, Liuan shook his head and asked no more. For him, executing orders is always more important than understanding orders, not to mention that his son-in-law is a literary man, and every word and deed and every move naturally makes sense, and he can't understand that it's because his level is not enough, so it's better to implement it well.

"Childe, this firewood has been piled up, can you light it?"

"Wait a minute, wait a minute, wait for me to hide a little farther away!" Liu Xu didn't dare to get too close, after the dry distillation of potassium nitrate, it was nitrogen dioxide, although this thing was not highly toxic, it was more or less toxic. Zhou Jun purchased salt nitrate from the northwest, and he didn't have instruments and reagents to measure the purity at the moment, and he didn't know how much water could absorb the nitrogen dioxide from dry distillation, so it was better to stay away. Liu Xu's hands-on ability is not good, and he has often had problems doing experiments since he was an undergraduate, but fortunately, the reagents they used at that time were not too dangerous and he didn't lose his life, so he didn't dare to operate it himself, and Ning Yuan guided him. He doesn't want to be the first one among the traversers to play chemistry and kill himself, what a shame!

Hiding in a position far enough away, Liu Xu gave an order: "Light a fire for me, Liu An, hold up the mat!" ”

The firewood is ignited, and their burning temperature is about 400 degrees, although it is not high, but it can reach a high temperature of thousands of degrees under continuous heating, which is enough to make potassium nitrate, the main component of saltpeter, decompose by heat. The firewood burns, blooming with a yellow flame, which may be ordinary in the eyes of ordinary people, but in Liu Xu's opinion, it is one of the most beautiful scenes in the world.

"People travel through the gunpowder within three chapters, and play with flintlock pistols within ten chapters, Lao Tzu is good, I haven't made dilute nitric acid after tossing for almost a month!" Liu Xu secretly complained that novelists are really the most unbelievable group of people in the world, and at the same time secretly paid attention to the situation of the second vat. Suddenly, a craftsman shouted loudly: "The dragon king has appeared, the dragon king has appeared, the dragon has absorbed water, the dragon has absorbed water!" ”

The dragon king's apparition? Dragons absorb water? Liu Xu was stunned for a moment, and then ecstatic: This nitrogen dioxide is very soluble in water, and this must be the water in the second vat that was sucked in because the air pressure in the pipe was too low!

Liu An stared at the slowly declining water level with a pair of round eyes, and muttered: "My young master is really a Wenqu descendant, what kind of invention even the Dragon Lord will come to help!" Another servant also said triumphantly: "No, our young master is not ordinary, this saltpeter can only make gunpowder, who would have thought that it could summon a divine dragon!" You see, this water is still bubbling in it, this is the dragon lord panting! If you want me to say, I also put enough saltpeter, if I only put a hundred catties to listen to the son, it is estimated that the dragon king will not come so quickly! ”

Liu Xu was secretly proud listening to the conversation of the servant, and suddenly heard such a sentence, and hurriedly asked loudly, "What?" You idiot! You put more than a hundred pounds? How much did you put out? ”

"Back to Childe's words, the villain thought in private, Childe said that letting a hundred catties be diligent and thrifty, but our Liu family has a big business, and there is a fairy-like character like Childe, how can he be so stingy? The villain let them put three hundred catties in one go! ”

"You! Liu Xu only felt that his eyes were black for a while, he still looked too highly at these family servants, not only did the Ming Dynasty not have the awareness of quantitative management, but so did these domestic servants! This chemical experiment has nothing to do with the wealth and half a dime, this guy really has no limit to death! ”

According to his calculations, there are about ten liters of water in the big tank on the right, and according to the dissolved amount of 2,900 grams per liter of water, about 60 catties of nitrogen dioxide gas can be dissolved, which is about 120 catties of reactant potassium nitrate.

If it weren't for this dog's leakage, it is estimated that he Liu Gongzi would have really become the first person to play chemistry through ancient times and kill himself!

"Let's go, let me go, whoever is that, remember to put out the fire!" Seeing that the bubbles in the second tank were getting faster and faster, which showed that the decomposition reaction in the first tank was gradually accelerating due to the rise in reaction temperature, Liu Xu ordered loudly. I hope I won't be killed by a servant.

"Young Master, did the little one make a mistake?" The well-intentioned servant seemed to know that something was wrong, and his eyes widened and he did not forget to pull the water-soaked bamboo mat in his hand, but he was loyal.

"Let's go!" Although Liu Xu was in danger, he was still in danger, he took the lead himself, ran out with a quilt on his head, and then shouted to the others to evacuate, although the others didn't understand what was going on, but they all ran out. The craftsman who managed the reactor still had some work ethic, and he didn't understand what was going on, so he kicked the burning wood with his foot before slowly running out.

Liu Xu stared at the second cylinder with a pale face, only to see that the water level in the second cylinder slowly rose, which was the saturation of the combination of nitrogen dioxide and water, plus the continuous production of oxygen to fill the gap, and the water level dropped after the air pressure on both sides was balanced. Liu Xu didn't care about the nonsense of the servant, "The dragon lord is angry, the dragon lord is gone, it's all the villain's fault, please don't blame the son", and watched the brown-red nitrogen dioxide exchange overflow from the water. The molecular weight of this nitrogen oxide exceeds that of air, so it does not float upward, but slowly spreads and spreads on the surface of the water, like a pool of red lotus slowly opening. If it weren't for the amazing corrosiveness of this thing, just looking at the appearance would be quite beautiful, like the clusters of mandala flowers by the bridge.

"The young master is really a celestial figure, and he can actually make the water surface bloom!" The servant, who knew that he was in trouble, applauded loudly, trying to save a little impression on himself.

Liu An didn't know what to do, and saw that Liu Xu was angry but didn't vomit, it was the most terrible state, he shrunk his shoulders and didn't dare to speak.

Liu Xu was a little weak to increase the amount with his hands, but fortunately it was only nitrogen dioxide, even if it was dissolved in water, it was just dilute nitric acid, as long as it was not directly drunk or splashed on the face, it was not easy to die. If you change nitroglycerin or smokeless gunpowder, I'm afraid that everyone in this room will have to be buried with you.

However, Liu Xu is not a person who likes to lose his temper, he firmly believes that every move, word and deed should be, and simply to vent his anger or vent his anger can only make his subordinates look down on him. What's more, he had already experienced countless dangers when he was doing experiments as an undergraduate, and it can be said that he had rolled on the line of life and death, so he just didn't expect to encounter a laboratory accident when he returned to the end of the Ming Dynasty, and the fear was not too deep.

"Liu Tong, do you know what is wrong?" Although Liu Xu didn't want to be angry, this opportunity was not to be missed, so he took a slow breath, kept his anger in his breath, and asked Liu Tong softly. His tone was not stern, and his expression was not harsh, but he had accumulated a lot of power along the way, and he had already become a half-human and half-god figure in the eyes of his servants.

"Damn the villain, damn the villain!" Liu Tong knelt on the ground with a "poof", and cried with tears in his eyes: "The villain makes his own opinions, pretends to be smart, thinks that the prince is a god in the sky, and naturally says as much as he wants, and the villain's little cleverness is naturally self-inflicted humiliation on the master!" I just ask the prince to see the love of the villain's grandfather and grandson for serving the Liu family for the three generations, and spare the little one this time! ”

Liu Xu heard him say "three generations of grandparents serve the Liu family", and raised his eyebrows slightly, although the Ming Dynasty family had many children, but three generations in a row served a family, which is also commendable, although this Liu Tong is a lot smarter, but there is still loyalty.

The law of the Ming Dynasty stipulates that slaves belong to the untouchables, although they are still human, but their legal status is lower than that of ordinary people, and they are in a disadvantaged position before the law. Today, Liu Tong made such a big mistake and almost threatened the life of his master, with Liu Xu's current reputation and status, it is not too difficult to kill him directly. It was precisely because of this that Liu Tong was frightened and kept pumping his mouth. He was originally a white-faced student, the best at playing lyrics, singing songs, and gags, and he won the hearts of the students on weekdays, but now his face is full of tears, his cheeks are red and swollen, and he has long lost his previous handsomeness.