I Kidnapped An Alien Civilization

2021-07-07

Chapter 227 tert-butyllithium

Li Mo saw that Zhang Xiaoli was nodded again.

He stepped forward, took a deep breath, and gently placed the measuring cup on the table of the precision scale.

“399.96g!”

A line of numbers popped up on the scale’s LCD.

“Me!” Li Mo can’t describe his shock now that there is such a precise technique on the world.

When he was a child, he also heard the story of the oil seller dripping oil through the copper coins. In the story, the oil seller could pass the sesame oil through the copper coin hole without spilling because of his skill. The scene in front of her was not, because the measuring cup and the sulfuric acid bottle were selected temporarily, Zhang Xiaoli had no chance to “preview” in advance.

“This. Big sister.” Liu Mingrui, the eldest of the trio of bags under the eyes, had a smile on his face, and asked obediently, “Can you tell me how you did it?” Far beyond their own knowledge of technology, the trio of bags under the eyes can always ask questions. For them, chemical laboratory operation is neither knowledge nor technology, but an art.

“Feeling.” Zhang Xiaoli frowned for a moment and gave an unacceptable reason.

“Feeling.” A strange expression appeared on Liu Mingrui’s face, he stretched out his hand to take a look, and then sighed heavily.

“Boss, I don’t think it’s necessary to compare, this little girl’s innate talent is fully qualified to join our lab.”

Li Mo understands what he means, and other experiments Different laboratories, Yanjing Mozi Science and Technology Laboratory focuses on the innate talent of employees. Compared with the knowledge that can be learned the day after tomorrow, innate talent is unique and unmatched.

“Really, can I really join the lab?” Zhang Xiaoli shouted happily.

Li Mo nominates, and can be affirmed by the trio of bags under the eyes, she already has the qualifications to join the laboratory.

The smile on her face didn’t disappear, Zhang Xiaoli suddenly said seriously: “But I still want to finish the game with you.”

More than? Li Mo is a little confused about her obsession, is she another lab geek?

At this time, the three brothers with bags under the eyes also had a serious expression on their faces. If the competition just now was just a test for little girls, what followed was a torture of their skills.

“Very good, what’s the next item.” Liu Mingrui asked, if they avoided the game today, perhaps the story of the escape trio would be spread on the Yan University campus from now on.

“The second item, the speed test, you need to separate the two randomly mixed liquids. The fastest contestant wins.” Li Mo helplessly said, these scientific research dogs always have a stubbornness that is different from ordinary people. .

“I’m here this time.” Third Brother Liu Xuanchen stood up.

Li Mo randomly selected two reagents from the reagent cabinet in the way of “spotting troops” and mixed them together.

Twenty minutes later, Third Brother Liu Xuanchen saw Zhang Xiaoli standing next to him with a smile on his face who had completed the separation. His face showed a frustrated expression. He lost this game, but he did not stop his actions because he would never allow himself to interrupt the experiment. After 2 minutes, he also completed the separation.

“Boss, what’s the next test?” Zhang Xiaoli seemed to regard herself as a member of the laboratory.

Looking at the battered trio of bags under the eyes, Li Mo could only helplessly say: “The following is the last item, tert-butyl lithium.”

“The contestants from both sides Need to use tert-butyllithium independently to make trialkyl boron hydride files.”

“tert-butyllithium?”

“tert-butyllithium!”

The frustrated trio of bags under the eyes and the confident Zhang Xiaoli took a step back, Li Mo smiled slightly, that’s what he wanted. Chemistry is a scientific exploration, and scientific exploration is always full of surprises. As a true experimenter, one day you will encounter dangerous chemicals in your experiments.

Alfred Bernhard Nobel Nobel is a famous chemist whose greatest achievement is the invention of nitroglycerin explosive , but in the process of researching explosives, due to an accidental explosion, the factory was blown up, and his younger brother was thought to be killed.

Similar incidents emerge in an endless stream in the chemical industry, especially when operating some flammable and explosive chemical reagents, which requires the boldness and care of the experimenter. Because when a person’s mind is controlled by fear, he is not far from being wrong.

And tert-butyllithium is an extremely dangerous organometallic compound. It is highly flammable and can even spontaneously ignite in the air. It must be protected by dry nitrogen during storage and must be isolated from oxygen during use.

Because of its flammable attribute, it was once known as a laboratory killer, and many experimenters were disgusted by it. Later, with the improvement of protection methods in modern laboratories and the invention of inert gas protection devices, this situation was alleviated, but it is still a chemical material that many laboratory personnel are reluctant to use.

“Boss, did you buy insurance for us?” the boss of the trio of bags under the eyes asked, raising his hand, his heart: this is just a small test, don’t you need to use the ultimate weapon?

Li Mo waved his hand and said angrily: “Don’t worry, the insurance of 5 million per person is enough to replace your whole body once.”

“What about me? ?” Zhang Xiaoli also raised her hand timidly and asked.

“You have it too. There are insurance clauses in the contract you signed for your internship, didn’t you read it carefully?” Li Mo replied that he would choose to take precautionary measures against any accident, such as commercial insurance for employees , he naturally will not pull down.

Li Mo and his brother with bags under his eyes stood outside the laboratory, looking through the glass to see what was going on inside, his palm resting lightly on a red button, which is the control button for the firefighting facility.

Liu Mingrui and Zhang Xiaoli had already put on biochemical protective suits. They looked out the window and waved.

“.Is this a farewell?” Li Mo felt that in the future, he would still use some dangerous reagents. Even if he didn’t have the opportunity to use it, he should create opportunities, or he could engage in such “dangerous activities” once a week. ”, otherwise the courage of these experimenters is getting smaller and smaller. He thought it was much better than a horror movie.

The two brothers with bags under the eyes were also outside the window. From the strange smile that appeared on his face, he noticed a hint of danger. The two looked at each other and quietly took a few steps away.

Dry the bottle, weigh the raw materials, insert the thermometer, replace the argon gas, pass the condensed water on, put the bottle in industrial ethanol, plug the flask, flush with nitrogen, and cool it to -78C.

Then take out the constant pressure nitrogen drawn from the syringe.

This is a normal experiment step, skipping any step will make the experiment uncontrollable.

The two people in the laboratory operate separately. Li Mo keeps an eye on the steps they are taking. Once he finds that anyone is missing any step, he will terminate the experiment. After all, he does not want to put the experiment The room becomes Flame Mountain.

The liquid nitrogen has been poured out, and the two people’s previous movements were almost synchronized. This dangerous experiment focuses on the accuracy of the steps.

But Li Mo found that Zhang Xiaoli’s nitrogen extraction speed was 1 second faster than Liu Mingrui, and he frowned and recalled.

“Stop!” Li Mo yelled into the pager.

Zhang Xiaoli, who was about to open the refrigerator, stopped and looked out the window suspiciously.

“How many times did your syringe draw nitrogen?” Li Mo asked.

“One time, is it enough?” Zhang Xiaoli answered as it should be by rights.

Li Mo hearing this shook the head, “It needs to be drawn at least three times, and then you need to draw again!”

Through this detail, he already knew that the girl did not actually operate the uncle Butyllithium’s experiment, although she copied the previous steps according to the book, is not wrong. But the little details that were not in the textbook still betrayed her.

If the state of the syringe is perfect, it is true that only one pumping of nitrogen is enough to ensure that no oxygen remains in the needle tube, but as an industrial syringe, it is difficult to have a perfect physique. Maybe there will be tiny potholes on the inside of the glass, so a single extraction won’t completely remove the oxygen.

Li Mo explained patiently, and Zhang Xiaoli suddenly realized.

(End of this chapter)