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"Golden Horn Immortal, I don't know what you want to do with those waste pills? If you don't want them, can you give them to me? I want to use the waste pills to study and practice my hands, and you know that my cultivation is too low. ”

In order not to make the golden horn suspicious, Liangchen also made up a reason, and it was presentable. With this kind of cultivation, it is already good for him to be able to study the waste pill, but he doesn't think that he can study the elixir well.

So Jin Jiao is not stingy, anyway, he put these waste pills in the Qiankun bag not because of a collection habit, but for unified disposal.

Since the good day is coming, it is better to sell him a favor.

"Thank you so much!" Liangchen opened it and looked, wow, all of them are waste pills, it is estimated that there are hundreds, right? It seems that the alchemy technique of the Golden Horn is not good, there are so many waste pills.

In fact, Liangchen is lucky, it just so happens that the golden horn has not dealt with the waste pill for a long time, otherwise it would be good to have a few. For example, the reason why Taishang Laojun gave him only a dozen or so is that it is already the sum of the waste pills that Taishang Laojun has been refining for hundreds of years!

It's just that Liangchen doesn't know, otherwise he will definitely be shocked by Taishang Laojun's powerful alchemy.

As soon as Liangchen put away the waste pill, he saw Taishang Laojun appear. For these immortals, Liangchen is used to it.

"I've seen Taishang Laojun. "Liangchen learns from the ancients...... To be precise, it is to learn the golden horn to make a fool of Taishang Laojun.

"Liangchen, you're here, I'm still playing with the chemistry you taught me just now, and I found that now I can control the carbon dioxide you said casually!"

Taishang Laojun sent the golden horn and silver horn away, and then said to Liangchen, while talking still holding a burning wooden stick, and then chanting words in his mouth, then Liangchen felt the air around him move, and the burning small wooden stick was extinguished!

Originally, it was quite easy for the gods to extinguish a fire, except for the samadhi true fire. But if you don't use spells to extinguish the fire directly, but imitate the carbon dioxide fire extinguishing method in the human world, it won't work without scientific and technological content.

But I heard that Lao Jun can directly extract carbon dioxide from the air. Still shocked Liangchen.

It's not easy to extract pure carbon dioxide in the human world, but Lao Jun can solve it with a spell! This is the difference between immortals and mortals!

"Laojun, it seems that you have a good control of carbon dioxide. Liangchen was envious, but he thought in his heart. If I could also learn this spell and control carbon dioxide and oxygen at will, wouldn't I be able to control the flames at will?

Wow, real superpowers!

"It's also thanks to you that I know what carbon dioxide is, so I can distinguish them in the air. And it doesn't require too high a level of cultivation, and it doesn't need to consume too much mana to do it. It's so convenient!"

As soon as Taishang Laojun said it, Liangchen was really moved! There are no high requirements for cultivation, and there is no need to consume mana?

The human world thinks that immortals are omnipotent, but in mythological TV series, it seems that the ancient god Huo Shen Zhu Rong who can control the flames is Zhu Rong, the ancient god of fire, and Huo De Xingjun in the fairy tale system.

Liangchen felt that there should be a Huo De Xingjun in the heavenly realm now, as for Zhu Rong...... I don't know if there is. Therefore, the one who can really control the flames at will among the immortals should be the Huo De Xingjun.

However, if it was really possible to use spells to extract oxygen and carbon dioxide, wouldn't it be possible to control the flames at will? In this way, the immortals could learn another spell.

Despite the fact that it is now a peaceful world. But one more spell is not a bad thing, and you can play with fire when you stand with Huo De Xingjun in the future.

Liangchen thought that he wanted to learn to control the flames, but Taishang Laojun wanted to spread the technology.

"By the way, what tools did you say you were going to bring with you last time, can you tell me what oxygen is?"

Once you are familiar with what oxygen is, you can extract oxygen from the air.

"Bring it!" Of course Liangchen didn't forget, but this set of devices is relatively simple, there is no way, too tall devices all need electricity, although the heavenly realm can make electricity. But he can't do anything about controlling the voltage.

Moreover, the gods in the sky do not have the concept of voltage, and letting them control the voltage of two hundred and twenty volts is tantamount to playing the harp to a cow!

Watching Liangchen take out a set of devices, round-bottomed flasks. Catheters, beakers, alcohol lamps, and unknown reagents. These Taishang Laojun didn't know what it was, and he didn't speak, but watched like a studious child.

"Gentleman. Let me tell you, this is a round-bottomed flask, a device for reaction, which can be heated, this is called a catheter, which can conduct the generated gas, this is called a test tube, which is used to collect oxygen, and this is called an alcohol lamp, which is used for heating. ”

After Liangchen explained, he saw that Lao Jun seemed to understand, and if he didn't understand, he should remember it, so he continued.

"This is called hydrogen peroxide, commonly known as hydrogen peroxide, let's use this reaction, it is unstable, and oxygen will be generated under catalyst or heating conditions. This is called potassium permanganate, which is generally acidic and can also produce oxygen. ”

After saying that, he connected the device, then poured a little acidic potassium permanganate into the round-bottom flask, and then asked Lao Jun to borrow a fire, Lao Jun pointed his finger, and the fire of the Dan furnace (not the real fire of Samadhi) flew over.

As potassium permanganate was heated, Liangchen used the drainage method to collect oxygen, and the sink was not introduced just now, because it was seen through at a glance, so there was no need to introduce it.

Soon a test tube of oxygen was collected, of course, this is not pure oxygen, there are some magazine gases such as chlorine, but the oxygen concentration is relatively high. (Don't imitate)

"Okay, this test tube is oxygen!" Liangchen waved his hand, took out the test tube, and pressed his thumb against the mouth of the test tube.

It happened that Lao Jun brought a small wooden stick just now, so Liangchen took the wooden stick and lit it on the alcohol lamp and blew it out, leaving some sparks.

"Look, now I'm going to light the stick. Liangchen cheekily loaded another handful, and then put the wooden stick with sparks into the test tube.

In fact, there is a step in between -- purification! That is, to check the concentration of oxygen, and it is dangerous to have too many magazines or too much oxygen. Liangchen directly ignored it, even if it was dangerous, it would not itch or hurt.

"Hu ......" was originally just a small wooden stick with sparks, but Hula burned again, and it burned even more vigorously than before.

"Alright, done!" finished Yoshiki's performance. Originally, he had prepared other materials, but they were all different methods for producing oxygen.

"Not bad!" Taishang Laojun spit out two words faintly, indeed, giving a good evaluation is already considered high.

After all, it's some small tricks, but without using spells, it can fool the immortals. No way, who makes them not know the technology of the human world now? )