Even if it is a simple formula in Hozia's mouth, the alchemy solution he is using contains more than thirty kinds of materials, but the so-called simplicity means that as long as the various materials are well proportioned and blended, there is no need to use magic control.

The time required for smelting is not short, Hozia not only told the students the recipe of the alchemy solution, but also asked them to try to mix it, it is just a simple alchemy solution, and there is no big problem in mixing the respective material components, even if it fails, it is just a few low-grade materials, and it is not a waste at all.

Shaoyang's interest in alchemy is not low, and this alchemy solution does not look much different from the chemistry of the previous life, it has spiritual sense, and the amount is controlled very accurately, when Huo Ziya observed the movements of the students, he and Cao Chong paid special attention to him and Cao Chong, and nodded slightly.

Alchemists also need talent, magicians can learn alchemy, but there is always a difference between learning fast and learning slowly, although the alchemy solution they practice is simple, but it can really be operated, not everyone can succeed, nearly thirty people, only a few people succeeded in the end, except for Cao Chong, the rest are all students with strength above level six without exception.

The stronger the spiritual power, the more advantageous it is in alchemy, and there is no guarantee that you will go further in the future, but it will be easier to get started.

When their solution is prepared or fails, the Yunying ore that Huo Ziya put into the alchemy solution before is also almost refined, not that there is no way to continue purifying, but this solution can only go to this extent, even if it is just a low-quality Yun Ying crystal smelting, Huo Ziya is cautious, this is the professional ethics of an alchemy master, no matter how big or small the experiment is, there will be no carelessness.

Clamping Yun Yingjing from the solution with a tool and placing it on a plate, Huo Ziya held the plate to show the students the results of smelting, "Yun Ying Mine was originally blue-brown, with the increase of purity, the brown color gradually disappeared, the purer the blue of Yun Ying Crystal, the higher the purity, like this Yun Ying Crystal just removes some coarser impurities, and you can faintly see some brown, which can only be regarded as a lower grade, slightly higher than the quality of Yun Ying Crystal smelted by a blacksmith, just like the difference between the first grade and the second grade." ”

Many students were surprised, Hozia was a master alchemist, and he only refined ore to this quality, as if sensing the students' gaze, Hozia didn't know whether to explain or if he was going to lecture like this, so he mentioned such a sentence.

"What I show you today is only the foundation of alchemy, it can only be regarded as an apprentice, don't say that you magicians are ordinary people, as long as you can master the amount of materials, you can also do it, of course, even if you are an alchemy master, if you don't use magic to improve the effect of the solution, the quality of the Yun Yingjing that is finally purified will not be too different from ordinary people. ”

Even the alchemy master can only do this level, he is an alchemy master, of course, he can't surpass, and after he finished speaking, several students blushed slightly, ordinary people can do it, the geniuses among these magicians will actually fail, so they can't blush.

This is also one of the purposes of Hozia, if you want to learn alchemy well, it is not enough to be enthusiastic, and to beat these pretentious students can make them more serious.

Of course, for those students who successfully prepared the alchemy solution, Huo Ziya also did not hesitate to praise, especially focusing on Cao Chong and Shaoyang, Shaoyang is a seventh-level magician, if he fails, he feels strange, so he is more optimistic about Cao Chong, but his praise is not so easy to accept.

"The others take a good look, some of you are sixth-level magicians, and they are not as good as Cao Chong, a fourth-level magician. "The purpose of Hozia is to set a goal for the students, whether it is jealousy or envy, in short, a goal that will put pressure on them.

Shaoyang didn't say it, if he lost to him, others wouldn't have much thought, they would just feel normal, but Cao Chong, they were really not convinced, and they would naturally work harder in the future, and they didn't want to be lost to Cao Chong, so there were many complex emotions in their eyes when they looked at Cao Chong, anyway, Shaoyang thought that except for Jeffrey's acquaintances, there were few good eyes on others.

Most of the students failed to prepare the alchemy solution, the class time was limited, and Hozia would not let them continue to try, a batch of alchemy solution had already been prepared, and everyone sent one, and then they should try to refine Yunying ore, mainly to observe the changes of the ore in the solution up close.

This is much more interesting than the preparation of the solution, when the solution was prepared just now, the magician Feng Department, except for Shaoyang and Feng Jing, everyone else failed, Feng Wan kept pouting, she almost succeeded, the result was a slight discrepancy in the amount of a material, a slight discrepancy, and even this error may not be unsuccessful, but she was unlucky to fail, depressed, until she got the alchemy solution and Yunying ore prepared by Hozia, she was not depressed, and turned to refine it with great interest.

This kind of refining is very simple, under normal circumstances, they only need to control the temperature and humidity of the experimental environment, and avoid some factors that may cause the lesion of the solution, that is, they need to prepare a suitable laboratory, and now the classroom they are staying in naturally meets these conditions, so they only need to carefully put the ore into the solution, and then observe the changes of the ore in the solution, while listening to Hozia talk about the environmental requirements of the alchemy experiment.

"Most alchemy experiments require similar environments, as long as the temperature, humidity, light, etc. are reasonable, of course, some special experiments will have specific needs, but these are often required by advanced alchemy, and when you reach that level in the future, it is too late to study, as long as you master the regular precautions. ”

"The temperature of the alchemy laboratory should not be too high, generally kept at 10-20 degrees, mainly for liquid materials, the temperature is high, some liquid materials are volatile, low, liquid solidification, the same affects the alchemy experiment. ”

"Humidity is critical, I would rather dry it than too wet, the moisture in the air may affect the material ratio of the solution, especially for some solutions that require high precision, and a little more moisture will lead to blending failure. ”

"The light is aimed at some light-sensitive materials, and different light will change the properties of the material, which will affect the final experimental results. ”

......

While listening to Hozia's lecture, the students observed the changes in the Yunying Mine in the vessel in front of them, watching the brown on it gradually disappear, more and more blue, and there was a trace of crystal clarity on the ore, which is also the origin of the name of Yunying Crystal, of course, this is just a low-quality alchemy solution, the purity is not high, and the final refined Yunying Crystal is actually not much different from the ore.