Release that Witch Chapter 331: The key to “art”

"Church seems to pop up suddenly."

Until he returned to the office, Roland still echoed this sentence in his heart.

He closed his eyes and searched memory of Fourth Prince carefully, but still couldn't find more relevant content. He knew about Church's, just like ordinary noble. When -- was in the palace, Fourth Prince didn't spend much attention on learning knowledge, and mysticism was almost blank. But if what Tilly said is true, then the Church's promotion strategy is too strange.

Take the original religious legends of the world as an example. gods originated from the beginning of the world and it was pediatrics. The world was created by gods. For example, the seven-day creation, karma rebirth, and so on ... A set of legends that describe the power of God in its entirety is standard in every religion.

Compared to Church in this world, it seems quite ... immature.

But Roland has no more clues to continue his research. He shook his head and decided to leave these thoughts behind.

Maybe after exploring Hidden Forest ancient ruins, everything will have an answer.

He walked to the window and looked at the huge coating of --, which was spread on the ground in the garden. In the white snow, its turquoise appearance was particularly eye-catching.

Now that Soraya is bonding larger air bag, the new hot air balloon will be larger and more people can be carried. This is to consider that if there is no way to rescue the trapped woman when exploring ruins, simply let Anna shred the entire "ice coffin" and bring her back to Border Town with a part of transparent crystal stone.

The time of set off is set after two days.

People have made arrangements. Sleeping Island witch has Tilly, Silvie, Shavi, Ash and Andrea. Witch Union will send Anna, Wendy, Nightingale, Nana, Lightning, Macy. This time the lineup is unprecedentedly powerful, with the highest levels of attack, defense and battlefield awareness. As long as God Punishment Stone is not used, it is difficult for Devil to get close to them.

"Sir, Lord Chief alchemist Cam Schuire wants to see you," personal guard said outside the door.

"Let him come in."

Cam didn't come alone this time. He also brought his colleague James, "His Highness, you have a clue about the large-scale nitric acid production method you require."

"Really?" Roland froze slightly, and then a burst of joy came to mind. This is probably the best news I heard in recent days. He stood up in excitement and personally for the two chemists a cup of tea. "Come on, how is it made?"

"This is the credit of James," he smiled, touching his beard, "let him explain to you."

"His Royal Highness Esteemed," the young James looked somewhat restrained, and he bowed before saluting. "Your alchemical workshop ... No, the nitric acid produced by chemical laboratories is obtained by distilling dilute nitric acid with saltpeter. Then it was purified with concentrated sulfuric acid. I tried to combine the two together and directly put saltpeter in concentrated sulfuric acid to heat it. As a result, a nitric acid solution was successfully obtained, and the purity was very high, and even the smoking phenomenon recorded in «Elementary Chemistry» was observed. . "

"Co-heating? But the two are not the same thing," Roland said strangely. "The temperature of carbonization is much higher than that of co-heating, and the gas from carbonization should be nitrogen oxides. Dilute nitric acid is formed when it is introduced into water. .The purification of concentrated sulfuric acid is just to use the principle of high boiling point and strong water absorption to reduce the water content in nitric acid, and does not involve chemical reactions. "

"I don't understand why, but Mr. Schuire did a few experiments and thought my discovery was a coincidence."

"Coincidence?" Roland looks to the chief alchemist.

"It's true," affirmed Cam, "the two are not the same, but they have the same effect. I followed the chemical formula Derivation and guessed that it should be a certain component in saltpeter that reacted with sulfuric acid. Nitric acid was formed and evaporated during heating. According to the formula, it looks like some kind of ... Yeah, nitrate.

Roland Suddenly remembered in my mind, the chemistry textbook did mention that before the invention of synthetic ammonia, people used sodium nitrate or potassium nitrate to react with concentrated sulfuric acid to make nitric acid, which is also the oldest industrial system. law. Because the main components of saltpeter are two kinds of nitrates, it is convenient and easy to obtain, and the extraction is relatively easy, as long as the temperature is controlled, the nitric acid evaporated can be continuously collected.

Of course, because this method consumes a large amount of sulfuric acid and is very easy to corrode equipment, it is quickly eliminated by more advanced technology.

But these two points are not a big problem for Roland. There is no supporting fertilizer and pesticide industry in the territory. The sulfuric acid produced is only for the purification of nitric acid. As for the strong corrosiveness of nitric acid steam, Can be handed over to Soraya coating solution.

"Good job," Roland patted the shoulder of James happily, "This method can be made by you by chance."

"You don't know, he already showed great luck when he was Scarlet Water City alchemical workshop," Cam Schuire said, raising his eyebrows. "Before learning chemistry, alchemy itself is an exploration that requires luck, and this kid can In his early 20s, he worked out the double acid method, becoming the youngest alchemist in the workshop, and enviously turned a group of apprentices in their 30s and 40s with red eyes. To know that they would be apprentices throughout their lives. That's it. "

"Anyway, this is good news for small town," Roland praised. "You try to make a batch of equipment first, and I will let witch cooperate with you. If feasible, expand the production scale. . "

"as you wish."

"By the way, I have another task to give you," and then he put away his joy, and said solemnly, "Now that I have a reliable source of nitric acid, I need you to try the same. Very dangerous item -- nitroglycerin. "

"How dangerous is it?" Cam asked.

"The raw materials it uses are simple, that is, the reaction of concentrated nitric acid with glycerol, supplemented by concentrated sulfuric acid, but the temperature must be strictly controlled during the reaction, and ventilation must be maintained. Because nitration generates a lot of heat, you can The container is placed in ice water for testing. Remember that sudden cold and heat, vibration, impact and friction can cause it to explode. "Roland also does not know whether these amateur knowledge is unreliable, but the composition is undoubtedly correct, Even if it is dangerous, you must try it. "It is good to use a small amount of acid solution during the test, so that even if an accident occurs, Miss Nana can rescue you back."

"This ..." James opened his mouth and hadn't had time to answer. Cam promised, "I see. How does its power compare to snow powder?"

"The sky is far apart."

"It looks like an interesting experiment." Chief alchemist laughed.

Nine of the ten chemists are potential explosive art enthusiasts. This is true ... Roland thought.

Nitroglycerin is extremely unstable. The safety of Nuo Bale is that joining diatomite deactivates the ester. Although it improves the safety, it reduces the explosive power. Roland naturally does not choose this classical method. He intends to use joining nitrocellulose or nitro starch in nitroglycerin, both of which can stabilize and further enhance the explosion effect. The former is an excellent smoke-free propellant, while the latter is a powerful potent. As can be seen from their names, a large amount of nitric acid is the key key to the evolution from black gunpowder to the chemical gunpowder.

And he already owns the key.

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