Release that Witch Chapter 164: Making acid

Cam Schuire for several days has hardly slept since. He found that Border Town is the most correct choice he has made in his life.

It took me two days and one night to turn all the «Elementary Chemistry» over, and after sleeping for two or three hours, I was full of energy again. Now he has returned to the first page and studied the ancient book carefully.

Substances are made of tiny particles! The change of qualitative is the decomposition and reorganization of particles! During the reaction, the total amount of material does not change!

Oh my god, who are the authors of this book? They can describe the world that people can't see so clearly. He has more than once suspected that the contents of the book were made indiscriminately, but according to the above example, the alchemy test was performed, and the results were completely in line! Moreover, some examples that are common in reality can also prove that the certificate is correct.

For example, "oxygen" described in Chapter 1.

This gas is the main component of air. People don't breathe air, but oxygen. Oxygen is needed for flame combustion because combustion is essentially an oxidation reaction. The more oxygen there is, the more vigorous the combustion.

These words reminded him of the glass kiln of Scarlet Water City. It took two people to shake the air bladder in order to make the temperature in the furnace rise to the Melting Point of gravel. Since it is a substance, obviously it can also pass alchemy ... No, pure oxygen can be extracted by chemical reaction. If oxygen can be passed directly into the furnace, can it save the air blowing equipment?

And the most surprising thing is that the book says that water is composed of two hydrogen particles and one oxygen particle, which is probably why all living things drink water. However, hydrogen seems to be a kind of gas, and the two gases are combined into a liquid. How can this be done?

Cam found that he still had many questions to ponder. But there is no doubt that he has already walked in front of all alchemists. When they were still exploring the formula in chaos and fog, a straight and flat road appeared in front of them.

However, there is still work to be done. He reluctantly closed the book. At this point the horizon was gradually white, and it was time to work.

Cam blows out candle, walks to the bedroom, glances at his sleeping wife and daughter, and goes out quietly.

The residence assigned to him by His Highness is located to the west of the castle, which is much larger than his own home in Scarlet Water City. The walls are made of brick stone steps. Compared to wood that is prone to mold, this room is obviously much more comfortable and furnished And kitchenware. Although he didn't say anything, he felt more satisfied. The disciples live in another community two streets away from him. The house is smaller, and it is not a separate house. It is a bit like a hotel layout. One bedroom can accommodate four people.

Walking to the chemistry laboratory next to Scarlet Water River, the disciples are already busy. They are carefully selected by Cam. They have been studying cleaning materials at alchemical workshop since childhood and are now between 20 and 30 years old. Cam nodded with satisfaction when they saw the cleaned laboratory and shiny glass container.

"Good morning, Lord Chief Instructor," the disciples saluted together.

"Get started." He took a pair of gloves out of the cabinet and put on --. These gloves are extremely thin and flexible, probably made of animal intestines. alchemical workshop has never had such a requirement before, but His Highness the Prince has repeatedly emphasized the danger of chemical experiments. In the operating regulations, all those involved in the reaction of corrosive materials must wear gloves and open all windows at the same time.

Different from the workshop, the content of their work is very clear now, which is to prepare acid for His Highness. The double stone acid-making method, they have been operated many times, so Cam only needs to patrol on the side and not have to end up in the field.

These two acids are detailed in «Elementary Chemistry», one is called sulfuric acid and the other is called nitric acid. He used to use the creation to name it. For example, the former is called chloroalumina, and the latter is called saltpeter. The name is different, the preparation method is basically the same, acid vapor is obtained by dry distillation of chlorite and saltpeter, and then the acid liquid is collected by condensation. Green alum is usually associated with sulfur ore, and saltpeter is produced in special cities by special nitrate ponds, which are common raw materials.

However, His Highness emphasized that the two acids he wanted must be high in concentration, and he also specifically explained the purification method.

For example, after the sulfuric acid is collected, the water can be evaporated by heating to obtain concentrated sulfuric acid with a concentration of up to 98%. However, nitric acid will be a lot of trouble. According to His Highness the Prince, this acid solution itself is not stable and is easy to volatilize. When the concentration is high, it will decompose even when it is seen by light. Therefore, the distilled dilute nitric acid must be mixed with concentrated sulfuric acid and heated to allow the concentrated sulfuric acid to absorb water, evaporate the nitric acid, and store it in a brown glass bottle. To this end, His Royal Highness also prepared a thermometer.

Cam saw this thing at first glance when it saw it. A hollow glass tube contained mercury, and both ends were sealed. Don't worry about the mercury leaking out. There are several circles of paint lines drawn on it. Mercury will gradually rise when heated, and the final position will represent the current temperature.

Today, the laboratory has produced three bottles of concentrated sulfuric acid and one bottle of concentrated nitric acid. At this concentration, he discovered that sulfuric acid is not as easy to flow as water, but rather more like a viscous oil. At high concentrations, nitric acid is no longer colorless and transparent, but has become light yellow. As soon as the glass bottle cap is opened, white smoke will be emitted.

"Master, do we have to make these two kinds of acid every day?" asked a disciple named Amon.

"Until His Royal Highness confessed a new mission." Cam paused, "What's wrong, worried about not having time to explore the alchemy formula?"

Amon nodded.

Cam smiled at Hu Jiezi who touched his chin. "I forgot to tell you that the title of alchemist will not be needed in the future, so you don't need to explore the formula to become alchemist."

"No ..." Amon froze, "No need?" The other disciples also slowed down the work at hand, listening to the teacher's next words.

"Yes, the alchemy formula doesn't need to be explored anymore, but memory and Derivation," Cam clapped his hands and gathered everyone around. "His Royal Highness gave me a copy of «Elementary Chemistry» --. This is also what I bring you here. If the reason here is thoroughly studied, most of the formulas in the world can be inferred from the contents of the book. "

"Guess it?" The disciples whispered.

"Yes. After I read it in detail, I will teach you to begin the course." He said, "As for the promotion path, His Royal Highness also mentioned to me. In the future, you must pass the test that he personally arranged in order to obtain a chemist. Title. Believe me, it won't be long before this honorary title will be completely above the alchemist. And even the knowledge you have, even Kingdom Capital Alchemy Association, is beyond reach. "