v2 Chapter 440： Jedi comeback

At this moment, Sun Zhendong felt extremely grateful that if he stayed at Yanda now, he might even become a joke.

"The teacher is right, what Qin Luo is just an idiot." While speaking, Charles was all smiles.

Yes, in his opinion, Qin Luo is a real idiot.

However, in the next second, Charles opened his eyes wide.

In the eyes of everyone's surprise, Qin Luo, who hadn't moved for a long time, finally moved.

He picked up the bottle of "potassium permanganate" from the experimental platform.

Then poured into the beaker!

He actually used potassium permanganate!

The next moment, everyone's eyes widened, staring at Qin Luo firmly, Charles's eyes were scarlet with an incredible expression on his face.

The moment Qin Luo poured potassium permanganate into the beaker, the beaker that had stopped reacting suddenly boiled.

The temperature of the reaction kept rising and soon exceeded 90 degrees!

One minute, two minutes, five minutes, ten minutes...

The reaction continued, and there was no sign of stopping.

If it is just this, then forget it. What's more terrifying is that a layer of black material is depositing at the point of the beaker.

That is reduced graphene! And the area is not small!

"It's impossible!" Charles couldn't help letting out a desperate roar.

Once Qin Luo successfully prepared graphene, it was a disaster for him.

Compared to Charles' eagerness, Sun Zhendong was much calmer.

"Calm down. Before the result is determined, I don't know who will die." Sun Zhendong turned his head and looked at Charles' eyes with disappointment.

"But..." Charles still wanted to say something, but looking at Sun Zhendong's cold eyes, he swallowed again when the words reached his lips.

Looking at Qin Luo's constantly stirring right hand and the constantly condensing black blocks at the bottom of the cup, Sun Zhendong's face became more and more gloomy.

Test Bench……

The experiment continued, and the temperature in the beaker continued to rise, reaching 98° in a blink of an eye.

At the same time, Qin Luo removed the H2O2 reducing oxidant from the shelf.

H2O2 reduction oxidant!

The silent crowd boiled again, adding not only potassium permanganate, but also H2O2 reducing oxidant!

The otherwise calm beaker boiled again.

The swift reaction lasted for several minutes. When the reaction temperature just dropped, Qin Luo picked up the tweezers, clamped the mouth of the beaker, and washed with 1:10 dilute hydrochloric acid solution and deionized water until no sulfuric acid in the filtrate was detected at all. until.

At this moment, at the bottom of the beaker, a layer of graphene is looming.

Looking at the black substance at the bottom of the cup, the whole studio was silent, and everyone opened their mouths, dumbfounded.

No one could have imagined that things would turn out to be like this. Originally, Qin Luo had been deemed impossible by everyone, but now, that thick layer of graphene hit everyone present in the face!

In this short period of ten minutes, Qin Luo completed an earth-shaking transformation.

It succeeded! Qin Luo successfully prepared graphene by redox method.

Seeing this scene, Wang Xuecai's mouth showed a slight smile. He turned his head to look at the dumbfounded companion beside him, with a smug expression: "Lao Zhou, Lao Song, what did you just say?"

Say what?

Zhou Haizhong and Song Baoguo smiled bitterly at each other.

"Pharaoh, honestly, did you know that Qin Luo kid can prepare it?" Zhou Haizhong asked.