In 1978, I was admitted to Harbin Institute of Technology

Chapter 38: It’s Over! The Chemistry Graduate Student Has Been Broken Again
"Come on, I'll take you to the chemistry lab."

Kang Yi didn't even ask Xie Wei what he was going to do specifically.

He asked Xie Wei to go to the laboratory with him.

"Director Kang, aren't you going to class?"

Looking at the textbooks and handouts tucked under Kang Yi's armpit, Xie Wei felt embarrassed.

“I just go to the laboratory for class.”

Harbin Institute of Technology was founded 20 years ago. Since its establishment in the 30s, the Department of Chemistry has always been one of the four major disciplines of the school, namely mechanics, electronics, instrumentation, and chemistry.

In 70, the school was split up, and the military-related majors were packed up and moved south, where they were merged with several departments of Harbin Institute of Technology. The chemistry major remained in Harbin.

However, since the 50s, the main research direction of the Chemistry Department of Harbin Institute of Technology has been electrochemistry.

The basic chemistry laboratory is not the best in the country, and is not even ranked at the top.

It is enough to come up with AES.

There are many videos online showing how to make dishwashing liquid using tap water + white vinegar + white wine + baking soda. However, after Xie Wei personally verified it with his children, he found that it was all nonsense.

The reaction is not as effective as simply using white vinegar or baking soda.

AES, the core surfactant of dishwashing liquid.

全称脂肪醇聚氧乙烯醚硫酸钠，化学式为RO(CH2CH2O)n-SO3Na（n=2或3，R为12~15烷基）。

Main functions: cleaning, foaming, emulsification and resistance to hard water, etc.

AES, which has strong stain removal ability, is not only used for detergents.

It plays an important role in cleaning products such as shampoo, shower gel, facial cleanser, and hand soap.

It plays a very important role in the fields of cosmetics, textile industry, leather and tanning industry, petroleum industry, metal decontamination, etc.

A product with very broad market prospects.

Thanks to the developed Internet and the sky-high education, Xie Wei spent more than 800 yuan to buy a complete set of equipment needed for junior and high school chemistry experiments when his child started junior high school. He not only did the experiments required by the textbooks, but also did all kinds of messy experiments on the Internet.

Although I can't say I'm a master at basic chemical experiments, I'm very skilled at it.

In his era, except for hazardous chemicals, everything could be delivered to your home for 9 yuan.

Some friends can even bargain a little more and get it at an outrageously low price.

I just don't know whether the chemical laboratory of Harbin Institute of Technology has a complete range of basic raw materials.

"Professor Kang, you are here?"

At the entrance of the chemistry laboratory, three graduate students, fully armed with white coats, white hoods, masks and goggles, stood straight and greeted Kang Yi and Xie Wei respectfully when they saw them coming.

A graduate student in chemistry from the 78 class.

"Well, He Yang, go get Xie Wei a set of protective clothing. Once he's changed, I'll introduce the lab to you."

"???"

Several people were confused.

Doesn’t Director Kang only have three graduate students?
Although He Yang was puzzled, he hurried to the material room next to the laboratory to help Xie Wei get a lab coat.

Xie Wei was puzzled: Let him take classes with graduate students?
"Director Kang, I just want to borrow the test equipment."

Xie Wei emphasized.

"I know."

Kang Yi nodded. "If you don't know the lab, who would dare to let you get started? The lab has regulations. You need to be guided by a chemistry teacher in the early stages."

"..."

Xie Wei remained silent.

Several other graduate students were surprised to see that their mentor, who had been rude to them since the very first moment they met, was so kind to Xie Wei: Is this guy a relative?

"Teacher Kang, I'm familiar with all the equipment that will be used. With enough materials, it should be quick."

Xie Wei didn't want to take classes or do experiments with a bunch of graduate students.

Kang Yi is an expert in physical chemistry and electrochemistry.

The graduate students of the 78 class of Harbin Institute of Technology are not only evaluated on their test scores, but also on their practical ability.

Several graduating classes recommended by workers, peasants and soldiers to go to university may not necessarily be admitted to graduate school.

Would Xie Wei feel no pressure when meeting college students who graduated before 66?

Before 66, almost all university professors and lecturers were leaders and founders in various fields in the country.

How can the level of the students they teach be bad?
Liang Hongling, a student of Mr. Hua, and Liang Hongbin, a student of Mr. Qian...

Kang Yi, the head of the Chemistry Department, is a student of Mr. Hou Debang, the alkali-making king who single-handedly broke the Western blockade and monopoly; his graduate supervisor is Mr. Huang Ziqing, a professor at the Chemistry Department of Peking University.

All of his teachers were among the first batch of academicians of the Republic in 55.

Xie Wei is just a freshman.

Kang Yi asked Xie Wei to take classes with his graduate students. If Wang Zheng knew about this, he would either be arrested by Du Guowang and put in a small dark room to work on numerical control systems or PLCs, or he would be arrested by Liang Hongling to study advanced mathematics. Liang Hongbin's high-energy physics was waiting for him...

Xie Wei actually wants to start the experiment directly?

The three graduate students' eyes were filled with surprise: Where did he come from and why is he so powerful?

Even though they are college graduates more than ten years ago and have been working for more than ten years, they dare not ask their supervisors to do independent experiments right away.

This kid is probably going to get scolded.

however.

To their surprise, the always serious instructor actually asked Xie Wei with a smile on his face:
“需要什么材料？”“硅酸钠（Na2SiO3）、氯化铝（AlCl3）、氢氟酸（HF）、硫酸（H2SO4）、纯净水（H2O）。”

Xie Wei quickly reported the main raw materials of AES.

"There is nothing in the lab except concentrated sulfuric acid."

"How could there be no sodium silicate in the lab? The preparation of this stuff requires heating to 1400°C. Can the reactor in the lab reach this condition? They are all common materials."

Xie Wei frowned.

No materials, everything from the basics?

It's dying.

I just wanted to wash the dishes.

"How to prepare pure water? How to dilute concentrated sulfuric acid? How to prepare hydrofluoric acid? What role does aluminum chloride play in organic synthesis..."

Kang Yi asked a series of questions with a smile.

"Director Kang, I really just want to borrow some experimental equipment."

Xie Wei reminded Conway and said unhappily, “Even junior high school students know these things!”

what?
He Yang, who came over holding a lab coat, twitched at the corners of his mouth when he heard this.

What a fuss!

Do junior high school students know the preparation process of hydrofluoric acid?
"You don't have a solid foundation, how can I let you experiment on your own? Some of these things are very dangerous to prepare."

Kang Yi still smiled.

"..."

Several graduate students did not expect that the instructor would be so kind to assess Xie Wei's basic skills at the laboratory door.

The key point is that he didn't even look at us, his eyes were all on Xie Wei!
Break defense instantly.

Xie Wei looked at the smiling Kang Yi speechlessly.

Smiling tiger!
on purpose!
It must be intentional.

But if I don't answer, Kang Yi will definitely not let me into the laboratory, let alone the raw materials for various experiments.

Except for sodium chloride, I don’t know where to buy the things here.

"Pure water is directly distilled..."

"Concentrated sulfuric acid is highly corrosive and has a greater density than water. It releases a lot of heat when it dissolves. When diluting it, add concentrated sulfuric acid to the water while stirring with a glass rod..."

"Hydrofluoric acid is a weak acid, but it is highly corrosive to glass, metal, and silicon-containing objects... In laboratories, fluorite is generally used, which is calcium fluoride and concentrated sulfuric acid in a plastic or lead container to make it. The chemical formula is..."

"Sodium silicate is commonly known as sodium silicate..."

Xie Wei answered the question in detail without pausing, and even stated the chemical equation.

Kang Yi's three graduate students were stunned.

The problem was simple. He had graduated for more than ten years, and his job had nothing to do with chemistry. He had only reviewed for several months before the exam. He was not even a chemistry major, but he was directly assigned to Kang Yi by the school.

Where can I find such a good foundation?

"Yeah, not bad. Put on your lab coat and come in. I'll see what you're doing."

Kang Yi nodded with satisfaction.

Although Xie Wei was not asked any difficult questions, several questions showed that he had a solid foundation in chemistry.

Ah!
He is a good candidate for chemistry.

This is what Kang Yi thought in his heart.

"Teacher, what about us?"

He Yang asked anxiously.

If you can start the experiment on the first day of school, your learning progress will be faster.

"You guys? If you had his foundation, I would let you get started right away!"

"..."

The three graduate students were dumbfounded.

Why do you so arbitrarily think that their foundation is not as good as the guy in front of you?

Although they could not answer all of these questions, they could answer most of them.

"He was also a freshman in the class of '78."

Kang Yi said calmly.

"what?"

The three of them were completely defeated.

No wonder the instructor had this attitude: the three of them had already graduated from college, but their foundation was not as good as that of a freshman?

How to accept it?

"..."

now.

Looking at the eyes of the three graduate students.

Xie Wei suddenly didn't want to work on AES anymore.

(End of this chapter)