Chapter 440
At this moment, Sun Zhendong was very grateful. If he stayed in Yanda now, even he would be a joke.
"The teacher is right, what Qin Luo is just an idiot." Charles smiled all over his face while speaking.
That's right, in his opinion, Qin Luo is a real idiot.
However, in the next second, Charles' eyes widened.
Under the surprised eyes of everyone, Qin Luo, who hadn't moved for a long time, finally moved.
He picked up the bottle of "potassium permanganate" from the laboratory bench.
Then pour it into a beaker!
He actually used potassium permanganate!
The next moment, everyone's eyes widened and they stared at Qin Luo. Charles' eyes were scarlet and his face was full of disbelief.
The moment Qin Luo poured potassium permanganate into the beaker, the beaker that had stopped reacting suddenly boiled.
The temperature of the reaction continued to rise, and soon exceeded 90 degrees!
1 minute, 2 minutes, 5 minutes, 10 minutes...
The reaction continued, and showed no sign of stopping at all.
If it's just this, then forget it. What's even more frightening is that there is a layer of black material depositing at the beaker.
That is the reduced graphene!And the area is not small!
"It's impossible!" Charles couldn't help but let out a desperate roar.
Once Qin Luo successfully prepared graphene, it would be a disaster for him.
Compared to Charles' eagerness, Sun Zhendong was much calmer.
"Calm down, before the result is determined, we don't know who will win." Sun Zhendong turned his head and looked at Charles with a flash of disappointment in his eyes.
"But..." Charles still wanted to say something, but looking at Sun Zhendong's cold eyes, he swallowed the words back.
Seeing Qin Luo's constantly stirring right hand, and the condensed black picture at the bottom of the cup, Sun Zhendong's face became more and more gloomy.
Test Bench……
The test was still going on, and the temperature in the beaker kept rising, reaching 98° in a blink of an eye.
At the same time, Qin Luo took the H2O2 reducing oxidant off the shelf.
H2O2 reduces the oxidizing agent!
The silent crowd boiled up again, not only potassium permanganate was added, but also H2O2 reducing oxidant was added!
The originally calm beaker boiled again.
The rapid reaction lasted for several minutes. As soon as the reaction temperature dropped, Qin Luo picked up the tweezers, clamped the mouth of the beaker, and washed it with dilute hydrochloric acid solution and deionized water with a volume ratio of 1:10 until no sulfuric acid was detected in the filtrate. until.
At this moment, at the bottom of the beaker, a layer of graphene looms.
Looking at the black substance at the bottom of the cup, the entire studio was silent, everyone opened their mouths wide, dumbstruck.
No one could have imagined that things would turn out like this. Originally, Qin Luo was considered impossible to succeed by everyone, but now, that thick layer of graphene slapped everyone present in the face!
Just in this short period of ten minutes, Qin Luo completed an earth-shaking transformation.
It worked!Qin Luo successfully prepared graphene by redox method.
Seeing this scene, the corner of Wang Xuecai's mouth showed a slight smile. He turned his head to look at his stunned companion beside him, with a proud expression on his face: "Lao Zhou, Lao Song, what did you just say?"
say what?
Zhou Haizhong and Song Baoguo looked at each other and smiled wryly.
"Old Wang, to be honest, did you know that kid Qin Luo could prepare it?" Zhou Haizhong asked.