The three young people signed a contract with Zhu Wan and came to work in the research institute, but they were directly facing Qin Di!

This made them extremely surprised: "Why? The decision-maker of the research institute turned out to be a stinky child! Isn't this a fool? What does a child know?"

"Oh my God, you're not playing with us, are you? We're also college graduates, so we're so easily deceived?"

"No, I'm going to Dr. Zhu! Ask her if she can get her 150 yuan a month?"

"But wait, I see that the equipment in this laboratory is okay, the constant temperature incubator, shaker, balance, microscope, spectrometer, are all relatively advanced, it costs a lot of money to buy these things! Dr. Zhu graduated from St. John's University, she has a gentle demeanor, shrewd and capable, and she should not be joking......

"In that case, let's work here for two days first, and if it's nonsense, let's leave quickly!"

Qin Di called the three of them over and handed them a page with specific experimental procedures written on it.

"The first step is to put 20 grams of iron filings, 30 ml of water, plus 2 ml of raw material A in a 250ml triangular flask, shake and mix, and install the reflux condenser tube......"

"In the second step, in a 250ml flask, add 5ml of concentrated hydrochloric acid, 120ml of water, and then add 5.6 g of material B......"

"Step 3...... Step 4......"

These people are confused, the experimental procedure is not complicated, but some key materials are marked with symbols, and they can't guess what it is.

Zhang Qianlun frowned and asked, "Senior Young Master Qin, these ABCDEF...... What the hell is it?"

Qin Di said lightly: "The heavenly secret must not be revealed! I am refining the elixir of immortality!"

The three of them couldn't cry or laugh, and they couldn't wait to leave, but looking at the experimental procedures and the materials prepared in advance, they were all on the experimental table, and they didn't look like jokes, so they couldn't help but leave. They're also curious to see what they can craft in the end.

They couldn't imagine that the topic that Qin Di explained was to study sulfonamides.

Sulfonamides are the first synthetic antimicrobial drugs in human history, first reported by German pathologist Gerhard Domac in 1932, proving that it can save rats and white rabbits from streptococcal and staphylococcal infections.

At this time, it was only 1912, and there were still 20 years to 1932, Qin Di knew the synthesis method of sulfonamides, and there was no reason why he could not be one step ahead.

The main raw materials for the preparation of sulfonamides include acetanilide, chlorosulfonic acid, liquid ammonia and liquid alkali. The latter two are available domestically. The most critical acetanilide is prepared from aniline by acetylation of acetic acid. Aniline is a chemical dye that can be imported from Europe. Chlorosulfonic acid can be prepared by reacting sulfur trichloride with hydrochloric acid. Most of the raw materials are already available in Europe.

Qin Di is not short of money now, so he placed an order with a foreign bank in advance and bought a batch of raw materials.

The research process is not all smooth sailing, these chemical raw materials are basically toxic, and it is easy to hurt people if you are not careful.

Qin Di had to go to the research institute often to keep an eye on, for fear that the three young men would burn their skin and eyes, or make a mess of the laboratory.

As the days passed, the experiment stumbled and moved forward little by little.

The three researchers saw that every step had a result, either an unpleasant liquid or a white crystal, although they didn't know what it was, but they finally reassured them: "At least Senior Young Master Qin is serious, not fooling around." ”

A whole year has passed in a blink of an eye, entering 1913, Qin Di is 13 years old, his height exceeds his mother, and he is already a handsome teenager. My sister Qin Ling has become a fifteen-year-old girl, she is about to graduate from middle school, and she is becoming more and more like her mother, and she is a little more intellectually beautiful. My sister Qin Yue is nine years old, she is in elementary school, she is still a little girl.

The uncle's family is still the same as before, but the lobby brother followed the uncle and found an errand in the Quartermaster Department.

The third aunt Huizi opened a bookstore on Xiafei Road, and Qin Di often went to check it out in his spare time.

The bookstore has a number of books translated into Japanese, as well as progressive periodicals like New Youth.

Keiko was very important to this nephew, because she had heard Qin Hanxu say that if her nephew hadn't stopped her, he would have almost gone to Beijing to assassinate Yuan Shikai.

At that time, Keiko couldn't help but break out in a cold sweat when she heard those words.

For this reason, whenever Qin Di arrived, Keiko smiled and took out delicious snacks.

On March 19, Qin Di came to the bookstore again.

Keiko greeted him and said with a smile, "Adi, you're here!"

Qin Di said: "I haven't seen the third uncle for a few days, I don't know where he went?"

Keiko said: "He went to Guangzhou, and the day before yesterday he sent a telegram saying that he would come back at noon tomorrow." ”

Qin Di's face was serious, and his tone of voice was straightforward: "Third aunt, let me tell you a big thing." ”

Keiko was taken aback: "What's the big deal?"

Qin Di said: "At seven o'clock tomorrow night, my father will have a treat at the 'Gentry Mansion' to celebrate my sister's birthday, please come with you and your third uncle!"

Keiko breathed a sigh of relief and smiled, "Look at what you said! Ling'er is 15 years old, is she an adult? This is also a big deal. ”

Qin Di advised: "This matter is very important! Third aunt, don't forget! Otherwise, I will hold a grudge and never come to your bookstore in the future!"

Keiko's heart trembled inexplicably, and she quickly nodded and said, "Ah Di, don't worry, we will definitely go." ”

Qin Di ate a few pieces of dim sum, flipped through fresh magazines, and left.

In the afternoon of the next day, Qin Hanxu came back.

Keiko told him about the dinner.

Qin Hanxu frowned slightly, and said, "Ling'er's birthday today, why is it so unlucky? Mr. Song is coming to the Demon Capital tonight, I should go to pick him up." ”

Keiko asked, "When will Mr. Song arrive?"

"It's about late at night. ”

"Han Xu, I have already promised Qin Di that I am going to the banquet. Mr. Song will not leave immediately when he comes to the Demon Capital, so you will go to see him tomorrow, is it okay?"

Qin Hanxu thought for a while: "Okay, it is estimated that the train arrived at the station very late, and Mr. Song was also sleepy at that time, so I will wait for him to rest for the night." ”

That night, the Qin family held a dinner party in the Gentleman's Mansion, and the people who went were mainly Qin Hancheng and Qin Hanxu's family, and the eldest Qin Hanliang's family did not show up.

Keiko found that this was just an ordinary family banquet, and it was not as grand as she imagined, which made her feel a little strange, and she didn't know why Qin Di was so serious before.

However, the next morning, the declaration suddenly reported: "At 10:45 last night, Song Jiaoren was assassinated at the train station!"

Keiko was shocked! I felt extremely frightened in my heart, and my body couldn't stop trembling!

Qin Hanxu was anxious and angry, and hurriedly walked out of the house to visit the Shanghai-Nanjing Railway Hospital. However, Song Jiaoren's life was in danger and was being rescued, and Qin Hanxu couldn't enter the rescue room at all!

After a day, at 4:48 a.m. the next day, Song Jiaoren died.

This was a major event in the history of the Republic of China.

Although Qin Di knew, he did not interfere, but carefully kept the history as it was.