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Next, Fang Jinyan used the purchased several pieces of metallurgical equipment to start processing the more than one ton of ore that he had collected in the barren mountains and mountains.

Although such equipment is too simple compared to the metallurgical factory before the end of the world, it is enough for the current Fang Jinyan. 1.5 tons of ore, no industrial refining method is required at all, it is enough to use the real yàn room refining method.

First, he used a stone crusher to crush all the ore into fine sand, so as to increase the contact area and improve the degree of chemical reaction.

Then, he used fluorite (calcium fluoride) to react with concentrated sulfuric acid to produce a large amount of hydrogen ~ fluorine ~ acid.

Fluorite and concentrated sulfuric acid are also what he bought in the black market, and it is said that they were obtained from the Ningzhou Industrial Park not far away, because there are many private individuals who are also researching evolutionary organisms, so these chemicals are very marketable, so it is not surprising that they are sold in the black market.

Because hydrogen ~ fluorine ~ acid is volatile and highly toxic, Fang Jinyan took protective measures at the beginning.

Then, he slowly put the previously obtained mineral sand into the hydrogen ~ fluorine ~ acid solution little by little, because the reaction is very violent, if you put too much at one time, it will definitely explode.

Fang Jinyan knows that the main component of this ore is silicon dioxide, in addition to some other substances such as iron oxide, and hydrogen ~ fluorine ~ acid has the ability to dissolve various oxides.

In peacetime, it has been widely used in the refining of aluminum and uranium.

Hydrogen ~ fluorine ~ acid is a strong diacid, which corrodes dissolved substances, not limited to oxides, in fact, except for a few substances such as lead, gold, platinum, etc. Most other common inorganics can be dissolved!

Fang Jinyan put all the ore into hydrogen ~ fluorine ~ acid, and in the end almost all of it was dissolved. Only a very small amount of sediment is visible.

After resting for a night, Fang Jinyan said early the next morning. The solution and the precipitate are carefully separated.

The sediment looked very strange, and even after the solution had been completely separated, the granular form still did not sink to the bottom of the container. It's as if the Earth has lost its gravitational pull, and they're all levitated

Fang Jinyan was not surprised, because he knew that this was just an optical illusion!

In fact, these particulate substances are not suspended, but are supported by other substances, which are invisible to the human eye.

This substance. It is what Fang Jinyan really wants to get, and those suspended particles are actually just hydrogen ~ fluorine ~ acid that failed to dissolve the impurities, and need to be further purified by other methods!

Although the vision is completely invisible, under Fang Jinyan's perception, it can be clearly "seen", it is a crimson substance.

Fang Jinyan knew that it was dark matter, a substance that only perception could detect!

Dark matter does not emit electromagnetic radiation by itself. It also does not interact with electromagnetic waves, so humans cannot observe it with their eyes at all, and even various detection instruments cannot directly observe them, and only through the effects of gravity can we know that there is a large amount of dark matter in the universe.

In fact. Dark matter and dark energy represent more than 9o% of the matter content in the universe, and the matter we can see only accounts for about 5% of the total matter in the universe.

It's just that for a long time, it was thought that there was no dark matter on Earth.

It's just that the experience of his previous life let Fang Jinyan know. In fact, there is dark matter on the earth!

It's just that there are too few of them, and observations are not available with optical and electromagnetic devices. So it's hard to be revealed!

However, some people believe that there was no dark matter on Earth before. The sudden appearance of dark matter may be related to the dark energy storm.

As to who is right and who is wrong in these two views, there is still no result until Fang Jinyan is reborn.

However, for the current Fang Jinyan, it is not very important.

The important thing is that in this life he should be the first person to refine dark matter!

Fang Jinyan reached into the container, grabbed a handful, and pinched this completely transparent substance in his hand, feeling like grabbing a handful of sand.

Because this dark matter is also solid and has shapes, the human sense of touch can be felt, but the sense of touch must be touched to sense, and if the dark matter is mixed with a large number of other substances, it will naturally not appear.

In fact, even if the awakened perception of the evolutionary person is difficult to show dark matter, because the dark matter on the earth is basically mixed in the ore, because it is too rare, so in the perceptual vision, the color is very, very thin, and it cannot be seen at all without conscious identification.

In addition, the range of evolutionary perception is too small, far inferior to vision, and generally can only radiate a distance of three to five meters, so until now, I have not heard of other evolutionaries showing dark matter.

And the reason why Fang Jinyan was able to appear was actually because he remembered the location in his previous life, where dark matter ore appeared, and even remembered the color form of that ore, and then consciously looked for it, which happened.

And it's also a rare open-pit mineable dark matter ore with a high content.

Other ores are either buried deep underground or have very low content, which can be many times more difficult to refine

Unfortunately, it is a bit small, and only 1.5 tons of raw ore were found in total.

So even if the content is as high as 1% or more, the final dark matter obtained is only 16 kilograms!

Next, Fang Jinyan heated these dark matter particles to 16oo degrees Celsius, let them completely melt, and turned them into something like molten iron, and then used a special mold to shape and cool them.

The result is a 4-meter-long gun.

And its diameter, but only 1 centimeter, this proportion can be said to be very, very fine, if it is a general material, even the best quality steel, it is estimated that the battle will be bent and broken after a while.

However, Fang Jinyan knew that this gun would not break at all, because the hardness of this dark matter was 1o times greater than that of diamond, and it was impossible to break it.

If not, why would he go to the trouble of using it to make a weapon?

In fact, in the previous life, this kind of dark matter was called "dark iron", and many evolutionary weapons were made out of it, and only such a weapon could wield the strength of advanced evolutionaries, especially those with strength talents, to the extreme.

With the growth of the evolutionary physique, ordinary weapons simply can't keep up with the rhythm. Just like the last time Fang Jinyan killed the mutant beast, because the power was too great, he directly broke the spear.

While some alloy steel weapons should not be phased out anytime soon, dark iron weapons are clearly better weapons. Because an increase in hardness also means an increase in sharpness.

According to the custom of the previous life, spears that are more than 4 meters long are called dragon guns, because they resemble the guns in the hands of the legendary dragon knights. A gun of this length cannot be used by ordinary people at all, but advanced evolutionaries can control it very well, because advanced evolutionaries have strong reflexes and movement and coordination skills, and can fully wield its power.

This is especially true for a brain talent like Fang Jinyan!

It's just that in this period, the dark iron weapon is too special to be lightly exposed, so he used the electroplating method to plate it with a layer of nickel metal, so that it is no longer transparent and looks like just an ordinary metal spear.

The reason why nickel metal was chosen is because this metal can shield the senses, so that other evolutionaries cannot sense the existence of dark matter inside.

This is also the experience of rebirth, and there are many people in previous lives who have used this method to deal with dark matter weapons, and the effect is very good.

In this way, Fang Jinyan spent a huge amount of financial resources and energy to finally make the world's first dark matter weapon!

However, he didn't feel a loss at all, because he knew very well the power of this weapon, and it was definitely worth it.

At this point, Fang Jinyan said that all the plans were basically completed, and he decided to leave here as much as possible and proceed with his next action.

But at this time, Xu Xiaoyao suddenly ran over to tell him: a person claiming to be "Zhao Neng" came to him, saying that he had something important to discuss with him.

Fang Jinyan thought for a moment, and quickly remembered that it seemed to be the person he met at the gate of the base that day, the captain of the Changfeng Hunting Team.

"It's strange, I'm just a one-sided relationship with him, what can he do with me? Could it be that you want to pull me into the gang again? Fang Jin muttered to himself, and then walked towards the door. (To be continued......)