Genius remembers in a second [Aishang Novel Network biquge.info] to provide you with wonderful novels to read.

Cai Yuanpei was about to say something, but when he saw someone coming in, he hurriedly stopped, only to see a young teacher come in, and when he saw that it was an acquaintance, he said loudly: "Brother Xian, you are finished with class." Hard work. Seeing that Yang Rui and Xian Feng were not familiar with him, he introduced: "This is Brother Xian Fang, who is now in the chemistry of the teaching club." He pointed at Yang Rui and said: "This is actually a brother, and he teaches economics." ”

Yang Rui hurriedly arched his hand and said: "The surname is Yang, the word is actually successful, fortunately, fortunately." ”

The other party is also a hand, a lucky meeting and so on. At the moment, the three of them sat down to chat, and Cai Yuanpei was also free today. The gentleman who taught chemistry was surnamed Zhong, a native of Ningbo, who set up a phosphorus factory in Pudong in the early years, and created the Shanghai Scientific Instrument Museum in Shanghai last year.

Yang Rui was interested in Mr. Zhong's scientific instrument museum, and immediately said that he wanted to go there to see it, Zhong Guanguan is a person who likes friends, is elegant, and also has a round glasses - Yang Rui now seems to be Harry Potter-style round glasses in this era, and he has never seen other shapes, so he followed him to the instrument museum on Sima Road.

The name of the scientific instrument museum stands up a bit of a public welfare flavor, but in fact, it is not, just because the things bought here are teaching aids and real room equipment and other things, and there are several facades, and there is an endless stream of guests. The head of the science museum is two Mr. Yu, the older is Yu Huizu, the younger is Yu Zixun, both of them are from Ningbo, and Zhong Guanguan is a fellow countryman, before the three of them failed to build a phosphorus factory, and then they ran this scientific instrument tube together, there was no business when it first opened, and then the new school prevailed, and the business got better.

Yang Rui actually came to see the scientific instrument museum, and there is also the MSG project to do the real yàn first, to buy some reagents and tools, and now proposed to buy concentrated hydrochloric acid, caustic soda, alcohol lamps, flasks, etc., Zhong Guanguan said: "Don't buy it, you don't have a place to do it when you buy it back, just do it here, I can still take a hand." ”

Yang Rui saw that he was honest, and he didn't understand chemistry, so it was good to have a familiar hand here. At the moment, I was doing research in the attic room of the instrument hall, first went to the noodle shop to find some gluten, and according to the method in my memory, I first steamed and ground the gluten into powder, and then added it to the flask, added concentrated hydrochloric acid, and began to heat it. Taking advantage of the heating time, the two took turns to eat, and after about four hours, the gluten was gone, and the liquid in the flask turned black. After turning off the fire, remove the flask, filter it many times, heat and concentrate, and then add concentrated hydrochloric acid, so that the precipitation is glutamate hydrochloride.

The following process Yang Rui is out of specs, after all, he only sees the company's case, the case is only written to this step, the later process only says that caustic soda is used to precipitate glutamate, and then the glutamate crystals are dissolved and caustic soda is added to neutralize and precipitate sodium glutamate. But how much caustic soda should be added, and what is the pH of the solution, Yang Rui was confused, and no one told him. There are some questions he doesn't understand very well, so he can only ask Zhong Guanguan, Zhong Guanguan only heard that Yang Rui wants to know a new substance, and he is very interested, he is very curious about what can be made, especially the hydrolysis of hydrochloric acid, he has never played with it before, and now he is adding gluten to the flask and continuing to hydrolyze, he really doesn't care.

Yang Rui can't remember the situation, he can only use the exhaustive method, fortunately, the pH value is seven, and the pH value of the precipitation of the glutamate solution cannot be 1, at the moment dissolved the glutamate crystal just now, the solution was divided into seven parts, and caustic soda was added to achieve different pH, and the final result was the most crystals precipitated between pH3-4. These crystals are glutamate, which is one step closer to monosodium glutamate.

The crystals of glutamate were gone, and the two simply used up all the gluten, and for a while the room was full of alcohol lamps. By the time he rested, it was already dark outside, and Yu Zixun had already brought the meal. After eating, the two began to discuss the details of the real yàn, Yang Rui had studied chemistry before, although he had learned a lot, but it was useless for too long, and the teaching and learning of later generations were light and practical, heavy on books, and the level was not generally low; And Zhong Guanguan did not formally study chemistry, just self-taught, the foundation is not solid, but the hands-on ability is very strong, the last time to run a phosphorus factory process is he little by little to find out, after the success of a few of them presented the sample to the Minister of Commerce Sheng Xuanhuai, speaking of this, Zhong Guanguan's voice lit up: "At that time, Sheng sent someone to see the finished product we made, saying that our yellow phosphorus manufacturing method, not allowed to go abroad, and approved the patent for fifteen years, and then everyone was hot-headed, I and Hanzhang borrowed 10,000 yuan, I opened a yellow phosphorus factory in Pudong, but who knew that the factory made in the real yàn room often had problems, and then the loss was so bad that the factory was closed. Zhong Guanguan sighed and didn't say anything more.

Yang Rui saw that he was depressed, took out a cigarette and gave him one, lit it, and lit it himself. Changed the topic and asked, "Your instrument hall is not bad now, and you can make a lot of money in this business." ”

Zhong Guanguan took a puff of cigarette, probably choked on it because he smoked deeply, and coughed a few times. After calming down for a long time, he said: "It was also a dangerous and dangerous coming, when it first opened, no one came at all, and only made one business a month, and collected ten yuan." At that time, everyone panicked, thinking that they were going to close the door at a loss, but fortunately, the imperial court set up a new school, and business immediately improved. What luck. ”

Yang Rui said: "This is an unpopular industry, as long as it stands on its feet, then there will be no big problems in the future." ”

"But I can't get enough of this, so I go to Japan to pull things over, and then sell them, and the money can be made, but it's always so tasteless." Zhong Guanguan said dissatisfiedly: "I still want to make something by myself, this year I went to Japan, originally to buy goods, after arriving in Japan, I want to go to the chemical factory to see, but I just won't let me in...... I would like to study abroad in Japan for a few years and study chemistry. ”

Yang Rui saw his thoughts and persuaded him: "Don't go to Japan, now the German who is the most powerful chemistry in the world, you should go there." ”

Zhong Guanguan was a little surprised: "Are the Germans so powerful, aren't they the first in Britain now?" ”

Yang Rui smiled: "Now the world's high-grade dyes Germans account for 8o%, do you say it's powerful?" ”

Zhong Guanguan was still very surprised, after all, Germany is a bit unknown now, and since it occupied Qingdao, it has not made much noise, so it can't connect Germany with the word first for a while. He patted his thigh and said, "Then go to Germany," as if he had made up his mind, and then asked: "How can I go to Germany, does the school over there accept people?" ”

&1t;/a>&1t;a> mobile phone users, please read here. &1t;/a>