Each experiment is very long, and even if the four of them are in a hurry, they have to watch the whole process carefully and accept the teacher's serious explanation. Although they can also buy stone phosphorus with money, but in the future they must learn to make their own, if you don't want to learn this, then in the future when extracting other important materials, without these as a basis, the experiment is likely to fail, and the money spent is not so little, every experiment needs a foundation, every process needs a certain amount of accumulation, and it can't be sloppy at all.

This world will cyan phosphate-containing stone called stone phosphate rock, and only such a material can extract phosphorus, the means is very single, his procedure is to first make stone phosphate rock into powder, add to an acidic solution, due to the different degrees of phosphorus and other minerals dissolved, will get a phosphorus-containing acidic solution, after getting, and then the slag is removed, heat the acidic solution, get phosphorus steam, cool, after getting phosphorus steam, in the sealed heating, get red phosphorus (fantasy text, unscientific place do not blame).

The process is very simple, but the operation is also very complicated, after watching it several times, the four of them wrote down the process, but except for Luo Wen, I am afraid that none of the people present know the principle.

But it doesn't matter, Mentor Steven is making it, and he will explain it later, and they can listen to as much as they want.

Of course, when it was their turn to make their own, they inexplicably began to get nervous.

First of all, you should wear protective gear, which is actually a gas mask, which is said to be a filter made of charcoal powder, which can filter heavy molecular particles in the air, which is very safe. Then there are inspection tools, crushing ores, proportioning solutions, etc.

Within an hour, it was spent in tension.

Steven watched the work of the four people, from time to time to guide a few times, within a few minutes, he found that Rowan learned very fast, almost without his guidance, he was able to complete this simple experiment independently, while others were still carefully proportioning the solution, he had already begun to distill, and he found that this child was very rigorous, did not make any mistakes at all, so he became curious, is it really someone who can learn by himself by watching others a few times?

When Rowan made white phosphorus for the first time, Steven was shocked, and when he started to heat white phosphorus, Steven was already numb, this kid, it was really done at one time, and there was not a single mistake in between.

After the stone phosphorus is processed, it is not isolated and heated, it is white phosphorus, white phosphorus has a very low ignition point, and it is easy to burn on its own, some people can't wait to take it out to play after getting white phosphorus, so that they will soon hurt themselves, Rowan is not anxious, and directly closed heating, which makes him have some views on Rowan again.

Steady, meticulous and meticulous.

After Rowan got the red phosphorus, he didn't relax, and classified the waste and waste residue left by the experiment one by one, and put the test equipment in place, in his opinion, these things will be useful in the future, as long as he is still on the road of magic.

The more Steven looked at Rowan, the more satisfied he became, and he even smiled, but he didn't show it, and his expression was still very serious.

At this time, Tellor also began to distill, when he saw something appear on it, he was so excited that he almost screamed, at this time, Steven naturally wanted to play his role, and reprimanded Tildo fiercely, originally, he was going to leave this lesson on Rowan, but unfortunately Rowan did not give him this opportunity.

After receiving Mentor Steven's reprimand, Terdo also quieted down and finished the experiment.

It's just a small experiment, and despite the stumbles in the middle, everyone can basically do it, and do it safely, without too much fault, the difference is only how many results everyone gets.

Seeing the results of the test, Steven was very pleased, but his face was still serious, "You all know the role of stone phosphorus, he is the casting material of the fire burning technique, you can use these tools for a day, and the materials can also be used at will, of course, if you have the conditions in your family, you can also buy the tools and go back to make them yourself, but you must pay attention to safety, how many magicians are not paying attention in the test, poisoning or other accidents die, among which there are some great magicians, so you must keep in mind." Steven lowered his tone a little, and the four people who listened to it were a little apprehensive, but everyone was very happy to get the right to use it for a day.

You can only get a little bit of stone phosphorus in one experiment, which is not enough for one spell cast, so if you can get the right to use it for a day, then you can get a lot of spell casting materials, which is definitely good news for the four people who are new to magic.

Rowan was also very happy, if he could use it for a day, then he could get more stone phosphorus, and go back to use it as a spell casting material for the fire burning technique, this magic during the internship period, he was already impatient to wait, as long as he could successfully release the fire burning technique, then he could become a real trainee magician.

Although the trainee magician is only the lowest-level magician, as long as he has the title of trainee magician, it will be many times more convenient to do things in this world, and many places that cannot be visited and many things that cannot be purchased can also be purchased.

Phosphorus is a toxic substance, naturally you can't hold it in your hand for a long time, and phosphorus vapor is even more toxic, so the whole experiment can't be wrong, and the slowly flowing air in the experiment tells them how dangerous this experiment is.

Next, under the watchful eye of Mentor Steven, everyone continued to experiment.

At the end of the day, Rowan conducted a total of five experiments and obtained four spell casting materials for the Burning Technique, which proved that he was able to go back and release the Burning Technique.

Mentor Steven has already talked about the release method of the fire technique, but there is no test material, and now that there are test materials, then this magic can really begin.

In fact, he also thought about buying a set of experimental equipment and going back to experiment by himself, but as soon as he thought of being in the Viscount's Mansion, he dispelled this idea, not to mention that he had no means to close the laboratory, nor did he have the means to make an exhaust fan, the most important thing was that he had no means to protect his privacy, if a magician could not even guarantee the safety of his own laboratory, then what kind of experiments would he do, it was better to come here, anyway, the primary materials were free.

The other is that these experimental instruments are super expensive, and a beaker needs a silver coin, not to mention this inferior microscope, which actually costs ten gold coins, and he can't buy it if he sells it.

The lowest currency in this world is copper coins, one hundred copper coins for one silver coin, one hundred silver coins for one gold coin, and twenty gold coins are equal to two thousand silver coins, which is equal to his salary for several years. Seeing this, Rowan wanted to vomit blood.

Since the tutor was there, it was not easy for everyone to communicate, except for the door of the magic office, except for Rowan, everyone breathed a sigh of relief, and because they studied together, they were familiar with each other a lot.

"It turns out that stone phosphorus is extracted in this way, and I finally have a long insight. Rosseph sighed.

"One or two stone phosphorus five gold coins, but the material and raw ore extracted from one or two stone phosphorus are only one gold coin, and those merchants are really black. Telifin couldn't help but complain.

"That's it, last time I bought a catty, I spent 50 gold coins, and I vomited blood. Terdo was also a little excited.

Rousseff was stunned, "You bought a pound? are you going to eat that?"

Terdo couldn't help but regret a little at this time, "You just ate it, it's so easy to get started with the fire burning technique, I bought so much just to practice, what I didn't expect was that this thing was so easy to extract, I wouldn't have bought so much if I knew it, it's really damn good." Rowan, you really surprised us today, you didn't make a single mistake, have you practiced before?"

Hearing this, Telifen and Rousseff couldn't help but look at Rowan.

Rowan shook his head and said, "How is it possible, the test equipment is so expensive, I can afford it?"

Tello put the subject aside and added, "Well, let's go eat, I'm in for a treat." ”

This matter, Luo Wen couldn't refuse, so the three of them, under the leadership of Terdo, got into the special carriage of the City Lord's Mansion and killed the Chongquan Building.

Chongquanlou is the best restaurant in Sakura City, and the consumption in it is about five silver coins, even if it is the guards of the Viscount's Mansion, they can come several times a month, and it is naturally even more drizzle for the little prince of the City Lord's Mansion.

When I came to Chongquan Building, I didn't need to say hello, Terdo went directly to the private room on the top floor.

Ordered a table of dishes, Tellor also unloaded the pride of the past, among the four people, he now understands that I am afraid that only their brothers and sisters are the worst, whether it is Rowan or Rosseph, the talent is much higher than their brothers and sisters, if they are still proud, I am afraid that they will suffer in the end, this truth, as the son of the city lord's family, if he still does not understand, I am afraid that he will have been played by other brothers long ago.

After ordering a table of dishes, the four children were also very happy.

As an adult, Rowan is naturally not like them, just a few perfunctory words at will, lest he appear to be independent among the four, and it would not be good to be noticed by people with a heart, although the Morey Continent is dominated by various empires, and the development of the church is not rapid, but they hate people like themselves who are born to know, what is a person who is born to know, that is, a person who is born with memories, in the eyes of those churches, they are all demonic possessions and must be eliminated.

There is also a church in the Holy Forest Empire, but in this kind of place, the church can't develop at all, at most there are two or three kittens, and most of them have become tools of the empire, so although Rowan is sometimes worried, he is not very afraid.

After a meal, the four of them felt a lot closer, although no one was convinced, but it was faintly headed by Luo Wen, after all, in the hearts of the three of them, Luo Wen is the fastest learner, and at the same time the spiritual power is also the highest, although he is not convinced, but there is still some fear in his heart, the world of magicians is cruel, the talent is a little higher, and it will always be a mountain, insurmountable.

After dinner, the four of them went home.

After a ten-mile night journey, Rowan soon returned to Anxi Town, the Viscount's Mansion.

It was already ten o'clock in the night in the Viscount's Mansion at this time, Rowan returned to the room, there was no one quietly, he breathed a sigh of relief, washed up, and when he calmed down, he took out the stone phosphorus in his pocket with some excitement.