Become Top Student In A Second

At this moment, sun Zhendong was very lucky. If he stayed in Yanda now, he would be a joke.

"The teacher is right. Qin Luo is just a fool." Charles was smiling as he spoke.

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

The next second, however, Charles directly widened his eyes.

In the eyes of everyone's surprise, Qin Luo, who had not acted for a long time, finally moved.

He picked up the bottle of potassium permanganate from the test bench.

And pour it into the beaker!

He actually used potassium permanganate!

The next moment, everyone's eyes widened, staring at qinluo. Charles's eyes were scarlet and his face was unbelievable.

When qinluo poured potassium permanganate into the beaker, the beaker that had stopped reaction immediately boiled.

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

One minute, two minutes, five minutes, ten minutes

The reaction continues, and there is no sign of stopping at all.

If that's all, that's fine. What's more, there's a layer of black material depositing at the end of the beaker.

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

"It's impossible!" Charles could not help but let out a roar of despair.

Once qinluo successfully prepared graphene, it would be a disaster for him.

Compared with Charles's eagerness, sun Zhendong is much calmer.

"Calm down, the winner is not known until the result is determined." Sun Zhendong turned his head and looked at Charles with a flash of disappointment in his eyes.

"But..." Charles also wanted to say something, but looking at Sun Zhendong's cold eyes, words to the mouth was his raw swallow back.

Looking at Qin Luo's stirring right hand and the black block at the bottom of the cup, sun Zhendong's face became more and more gloomy.

Test bed

The experiment continues, the temperature in the beaker keeps rising, and it has reached 98 ° in a twinkling of an eye.

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

H2O2 reducing oxidant!

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

The original calm beaker boils again.

The rapid reaction lasted for several minutes. As soon as the reaction temperature dropped, qinluo picked up the tweezers, clamped the beaker, and washed it with dilute hydrochloric acid solution of 1:10 volume ratio and deionized water until no sulfuric acid was detected in the filtrate.

Now, at the bottom of the beaker, a layer of graphene looms.

Looking at the black substance at the bottom of the cup, there was no sound in the whole studio, and everyone's mouth was wide open.

No one could have thought that things would turn out like this. Originally Qin Luo had been recognized as impossible to succeed, but now, the thick layer of graphene hit everyone in the face!

In this short time of about ten minutes, Qin Luo completed the earth shaking transformation.

It's a success! Qinluo successfully prepared graphene by redox method.

Seeing this, Wang Xuecai's mouth showed a faint smile. He turned his head and looked at his dull companion. His face was proud: "Lao Zhou, Lao song, what did you say just now?"

What do you say?

Zhou Haizhong and song Baoguo looked at each other with a bitter smile.

"Lao Wang, to be honest with you, did you know that Qin Luo could prepare it?" Zhou Haizhong asked.