"I'm not in a hurry, you can't wait. ”

Fang Yi glanced at Wei Mingcheng with a smile, reached out and picked up the glass bottle containing the yellow liquid, and when Fang Yi uncorked the bottle, a pungent smell of chemical potion immediately filled the noses of several people.

"What is this, why does it smell so bad?"

Bai Chuxia covered his nose with his hand, after entering the innate state, these people are particularly sensitive to smells and sounds, the sounds they hear in ordinary people's ears and the smell they smell in their noses are like being magnified many times under a magnifying glass.

"In early summer, you put on your mask. ”

Fang Yi took a pair of masks from the table and handed them to Bai Chuxia, and said with a smile: "The bad smell is still to come, I'm immune to this smell, if any of you can't stand it, put on a mask, I'll ask them to send several pairs." ”

I had the experience of the skunk bomb in the Savage Mountain, and the general smell really couldn't smoke Fang Yi, even if he didn't seal the six senses, the taste in this glass bottle was nothing to Fang Yi.

"Let's wear a mask, too. ”

Hearing Fang Yi say this, Si Yuanjie obediently picked up a pair of masks and put them on, he has just entered the innate now, and he has not yet learned how to close the six senses, just for a while, the pungent smell made Si Yuanjie a little dizzy.

"After becoming a cultivator, the resistance is not as good as that of ordinary people. ”

Fang Yi shook his head with a smile, poured the yellow liquid in the glass bottle into the glass container, only to hear a "snort", a puff of yellow smoke came out of the glass container, and the pungent smell became more and more intense.

"This, this thing is aqua regia?"

Wei Mingcheng's face showed a strange look, although he didn't learn chemistry very well, but when he was in the army, he had learned some extremely harmful chemical knowledge, including the mention of aqua regia.

Aqua regia is a very corrosive liquid that can be used to dissolve superalloy steels, steels, aluminum alloys, antimony, chromium and platinum group metals, as well as certain iron ores, phosphate rocks, slag, antimony and selenium, nickel-chromium alloys, and sulfides of mercury, arsenic, cobalt and lead.

For example, if a pig is thrown into the sulfuric acid for a day, the pork will be corroded, but the pig skeleton still exists, but if a pig is thrown in the water regia, even a pig hair will not be seen after a day.

"Aqua regia?"

Fang Yi glanced up at Wei Mingcheng, shook his head and said: "This is not aqua regia, it is a solution mixed with aqua regia and super strong acid, its corrosiveness is a hundred times stronger than aqua regia, and the acidity is billions of times that of aqua regia, almost nothing can resist its corrosion." ”

The reason why Fang Yi didn't start refining for more than half a year was mainly because he was waiting for this solution, in order to make this super acid solution, Fang Yi spent a lot of money half a year ago and entrusted a foreign chemical agency to develop a super strong solution, and it wasn't until a month ago that they came up with this product.

According to the chemical agency, this super-strong solution is definitely the most domineering combination of strong acid and strong corrosion in the world, and according to the experiments they have done, almost all the metals and ores known so far have been defeated in front of this solution.

"So powerful?"

Hearing Fang Yi's explanation, Wei Mingcheng and the others were all speechless, and there was also a hint of fear in their eyes when they looked at the liquid, if this thing dropped on the body, it was estimated that it would directly corrode the skin.

"Actually, the aqua regia you are talking about was invented as early as ancient times because of refining tools. "Fang Yi asked people to use aqua regia to study super-strong solutions, and it was precisely because of the origin of aqua regia that it triggered a whimsical idea.

When aqua regia first appeared, it was invented by Persian alchemists who mixed hydrochloric acid with nitric acid to dissolve metals, and they used aqua regia to refine many products that crossed the civilization at that time, and the secret recipe of aqua regia has been handed down.

Fang Yi suspected that those ancient Persian alchemists were evolutionaries, and the items they refined were naturally not ordinary, since the evolutionaries all used aqua regia to refine materials, Fang Yi believed that he would not be wrong in doing so.

"Fang Yi, look at it quickly, this piece of gold essence seems to have been decomposed. ”

Bai Chuxia, who had been staring at the glass container, suddenly exclaimed, because she found that the piece of gold essence, which was originally small, had shrunk at a speed visible to the naked eye under the corrosion of the super acid, and it was obvious that she could not withstand this super acid.

"It's okay, that's what I came up with. ”

There was no need for Bai Chuxia to remind, Fang Yi's divine sense had also been paying attention to the situation inside the container, the corrosion of the gold essence was something Fang Yi had expected, and the reason why he created this super-strong solution was to let it corrode the various refining materials in his hands.

In Fang Yi's mind, refining flying sword magic weapons, especially the natal flying sword, must definitely strive for perfection in the materials, and there is no room for the slightest difference, if the materials for refining the flying sword can be easily corroded by super acid, then even if this flying sword is successfully refined, I am afraid that it will not be able to enter Fang Yi's eyes.

Therefore, Fang Yi would rather have all the materials at hand corroded than indiscriminately refine a flying sword.

But with the further reduction of gold essence, Fang Yi also slowly began to be a little unsettled, after all, refining a little gold essence will cost tons of gold, if such a small piece of gold essence is converted into money, I am afraid that it will be at least more than 10 billion, seeing that the gold essence is dissolved little by little, Fang Yi's heart is also dripping blood.

An hour passed, the golden essence was still getting smaller, when two hours passed, the speed of realm dissolution began to slow down, three hours passed, only Fang Yi could find out if the golden essence was still changing.

After five hours passed, except for Fang Yi, a few people waiting next to him, including Bai Chuxia, were a little listless, they all thought it was a very wonderful thing when they heard that Fang Yi wanted to refine the weapon, but it would take half a day to decompose and refine a piece of material, so they just stood there and waited, everyone felt very bored.

"Fang Yi, it's almost, right?" Wei Mingcheng stretched out his head and glanced into the container, at this time, the golden essence had been covered by a super strong solution, and if he didn't need to observe it with his divine sense, he wouldn't be able to see any clues.

"It should be okay, this gold essence may have been refined to the extreme. ”

Fang Yi nodded, only he knew that the piece of gold essence that was originally the size of a matchbox had become the size of a thumbnail after five hours, and it had not changed for an hour.

The gold essence that was highly refined from gold actually had so many impurities, which made Fang Yi extremely happy in his heart while being shocked, because what was left after eliminating the dross was definitely the essence, and the gold essence with so many thumbnails was enough for Fang Yi to refine a flying sword.

"Immeasurable Heavenly Venerable, where did you find so much gold to refine in ancient times. ”

Looking at the thumbnail-sized gold essence, Fang Yi couldn't help but scold, just the gold used to refine the gold essence can make people extremely rich, it seems that the phrase "poor literature and rich martial arts" handed down from ancient times can also be applied to cultivators.

However, what Fang Yi didn't know was that the core of each gold ore vein was high-purity gold essence, and the entire ore vein was derived from gold essence, and when the ancient qi refiners were looking for gold essence, they didn't need to refine it from gold at all, they only needed to take the ore core away.

Without the gold ore vein of the ore core, with the passage of time, the quality of the gold ore will gradually decline, and then evolve into other minerals, or it may be nourished by the aura of heaven and earth, the gold ore vein will produce gold essence again, which is also known as the refining material in the eyes of the qi refiner.

That is, in the current era of the end of the law, all things in heaven and earth are no longer nourished by spiritual energy, and they have gradually degenerated into mortal things, and now the gold ore veins on the earth are ordinary ore veins after the gold essence disappears under the erosion of long years.

"A job is done. Fang Yi poured the super-powerful solution in the glass container into another glass container, and then used his divine sense to take out the small piece of gold essence and take it to his eyes to observe.

Under the continuous dissolution of super corrosion and strong acid, the gold essence, which has become much smaller, has become more and more brilliant, and the surface of the gold essence is radiant, and there seems to be a Taoist charm flashing, even Wei Mingcheng and others beside him can sense the aura contained in this piece of gold essence.

"It's really different, it's just that the process is a bit long. Feeling the change in the gold essence, Wei Mingcheng and the others were all in high spirits, but the time for decomposition and refining had also taken a little longer, and the mystery of refining had gradually faded in their hearts.

"This high-tech refining method, the process is already very fast. Hearing Wei Mingcheng's words, Fang Yi couldn't help but laugh, if they knew how the Ancient Inheritance was refined, they wouldn't think that five hours was a long time.

Not to mention the high-level qi refiners above the foundation building period among the ancient qi refiners, his true fire is pure and powerful, and the time to purify ordinary materials is very fast, such as gold essence, the most commonly used material, the foundation building period qi refiners can quickly use real fire to melt it out, and at most half an hour is enough.

However, if you change to a low-level evolutionary, that is, a Qi refining stage refiner who has just reached the use of True Fire cultivation, it will take several times as many hours to refine the gold essence.

You must know that the true fire emitted by the qi refiner needs to be supported by their own cultivation, and it consumes a lot of spiritual energy in the body, and the spiritual energy in the body is almost exhausted after releasing it for ten or so minutes, and at this time they can only stop refining, and then go to practice and meditate to restore the spiritual energy, and after the cycle, it often takes four or five days to purify a piece of gold essence.

For low-level qi refiners, this is not a bad thing, because the entire process of refining a magic weapon is also a process of cultivation, although it is very likely that it will take several months or even an adult time to refine a magic weapon, but after the refining is completed, their cultivation has also improved unconsciously.

The refining weapon is not only a terrazzo kung fu for low-level qi refiners, but also for high-level qi refiners.

Because gold essence can only be regarded as a relatively ordinary material among the refining materials, and some special materials are purified by high-level qi refiners, and the consumption is also huge, they also need to refine the weapon while cultivating, and behind the birth of a magic weapon, it is the huge effort of the qi refiner.

As for the spirit weapon, it is even more difficult to refine, only the grandmaster-level refiner in the ancient period can refine the spirit weapon, and the failure rate is very high, and the effort consumed is unimaginable, in addition to having a suitable spirit body, this is also one of the reasons for the scarcity of spirit weapons.

Therefore, in ancient times, refiners were more popular professions than alchemists, but with the disappearance of the aura of heaven and earth, the path of cultivation was cut off, and in modern times, both alchemists and refiners have become rare, even in the cultivator world, these two are also the objects sought after by various sects.

(End of chapter)