"With chlorine and hydrochloric acid, and by setting up glass test equipment, I found that the slime obtained near the platinum can be heated to partially dissolve it."

"Then the burning coke is introduced with water vapor, which produces a pungent gas. This gas can cause the clear platinum hydrochloride solution to precipitate, and then the precipitate is melted in a crucible furnace. Oh no, according to your statement

It should be called restoration, hahaha, that’s what I got.”

Su You was dumbfounded: "Hehe, hehehe... Manganese dioxide is added to hydrochloric acid to obtain chlorine gas, and the coke steam method is used to obtain ammonia gas... plus solution extraction method to extract platinum groups... Hehehe... Brother, why haven't you done it yet?

Where is God...do you know about Nobel?"

Zhang Xiangzhong felt very strange: "Luo Beier? It sounds very much like the stage name of a famous prostitute. Brother, I am obsessed with alchemy. How can I be taken away by an ordinary woman? The pleasure of discovering new substances is no different than that of women! Hi

You are still a child, I can’t tell you this..."

Su You rubbed the cold sweat on his forehead: "Unexpectedly, brother is so scary, so why don't you give me a ring..."

Zhang Xiangzhong lit an alcohol blowtorch and said: "The ring is useless, I will show you a trick."

The blowtorch ignited, Zhang Xiangzhong took a thin wire cover and covered it, and the metal wire immediately emitted a strong and dazzling white light.

Zhang Xiangzhong took a glass protective lampshade and put it on it, and looked at Su You's ghostly expression with satisfaction: "In order to prevent my virtuous brother from being too beautiful, I also designed a blowtorch for my brother. He doesn't need to replace the asbestos gauze cover every time, and it's not easy to break.

, it’s more durable and more beautiful than your blowtorch, how about it?”

Su You was unwilling to admit that he had lost to the ancients: "No, no, no, your lamp is too expensive, mine is cheap."

Zhang Xiangzhong scoffed: "People who can afford half a pound of alcohol every night, do you think they will care about this? Anyway, I don't care..."

"Besides, everyone treats this as silver, and it's much cheaper than your asbestos gauze."

Su You continued to deny: "It is difficult for you to refine metal..."

Zhang Xiangzhong said: "Actually, the same goes for smelting and drawing natural platinum. The reason why I go to so much trouble is just to purify the metal and do research. And after more than 20 filtrations, I found that the first, middle and last batches of metal precipitated.

The densities are different, maybe they are two or more different metals, they are still being studied, um, they are still being studied..."

Su You finally surrendered: "I don't want anything else. I'll charge you as much as you want for this metal mesh. What's the price of silver? I'll pay twice, no, three times!"

Zhang Xiangzhong chuckled and said, "Do you think I am a man who is short of money?"

After saying this, he put out the alcohol lamp: "A sky-gazing mirror, a tael of platinum."

Su You jumped up: "You're ripping me off! You just picked this thing up!"

Zhang Xiangzhong nodded: "Yes, but do I have you? When you sold Yongchun Dew to us, didn't you teach me not to disrupt the market? You said that even if the gold is kicked out, it is still gold and cannot be pressed against brass.

Is it for sale at the price?”

"Fuck..." Su You stretched out two fingers: "Two liang!"

Zhang Xiangzhong smiled and said: "Deal!"

The two foxes were secretly proud of themselves.

What Zhang Xiangzhong was thinking was that Tianshi Dao had been practicing for thousands of years and had collected a lot of these things for the secret of mithril. He exchanged these useless things for a sky-gazing mirror. Tianshi Dao took the sky-gazing mirror to various avenues.

Just watch and brush up your reputation, that’s a great thing!

What Su You thought was that this brother is still stupid. My alcohol blowtorch uses an asbestos mesh, so you use a platinum mesh. Little did you know that you only need a thin platinum spring filament. This is a complete waste.

One or two platinum wires can make many incandescent lamps...

Both of them were very satisfied, looked at each other, and bowed to each other as brothers and sisters, full of affection.

Coming out of the inner room, Su Youcai said: "Brother is so wise that I can only admire you. If you need anything in the future, you can raise it yourself. Even if you can't solve it, it will be beneficial if we all discuss it together."

Zhang Xiangzhong said: "Thanks to the help of my virtuous brother, many things have happened, such as the clouds and mists have been dispersed and the paths have been opened. Now my colleagues are studying Liezi's theory, and the Qin Tianjian is also paying close attention to the observation, and there may be discoveries soon."

Su You smiled and said, "It's better if you don't think the telescope is a monster."

Zhang Xiangzhong smiled and said: "The principles are explained clearly and clearly, and there are also diagrams. If you can't understand it, you are called a fool. You are not an elite of the Dao, a master of Qintian."

Su You bowed and said, "I use it to observe ships on the water. If you use it to look at the stars and the moon, it's none of my business if you fight to the death."

Zhang Xiangzhong couldn't help laughing: "You really live up to your name!"

After coming out to say goodbye to Mr. Whitebeard, and making an appointment to appreciate his slow sword skills and the medicinal powder prepared by Sanqi another day, Su You led Wei'er out of the gate of Deyujuguan.

Xue Zhong stood guard at the door and escorted the two of them to the car.

After passing through Qingyangsi and entering the city gate, the carriage headed towards the inner city.

Su You lifted the car curtain and lay on the window with Shi Wei, watching the excitement and talking.

The inner city of Chengdu is square, and the outer city is in the Bagua shape. The city was built first by Zhang Yi and then by Zhuge Liang. Both of them were closely related to Taoism, and the entire city was built full of philosophical charm.

Chengdu has always been leisurely and lively, but even the voices of the hawkers are full of a lazy atmosphere.

Many noble people sat on something like a bed board, with pillars standing at the four corners and hanging curtains, and were carried by people to go shopping.

Su You was surprised: "Weier Wei'er, what's so weird about that?"

Shi Wei said: "That's right, it's so weird. I heard it's called a bed. It's used by noble people when traveling."

Xue Zhong smiled and said: "There are also shops selling this thing. It is much more exquisite than this one. If my benefactor likes it, I will have it finished tomorrow for my benefactor and the young lady Xianqing to play with."

Su You thought about himself and Wei'er sleeping in the same bed, and then being carried through the streets by four people, while the people around him watched curiously, and couldn't help but shudder: "No, no, no, just give us two horses."

Xue Zhong said with a smile: "Chengdu people like this, wait and see on April 8th, then Xueshi Zhang's big flight will take the lead, followed by the deputy envoy, general magistrate, and countless gentry's small flight following behind. They will compete with each other all the way.

Walking to the riverside is called lively and traveling."

If the word "Su You is dizzy" comes from here, then it's not a good word.

Arriving in front of the transfer office, Xue Zhong stepped forward to inform, and Zhi Ke led the three people in.

The yamen occupies a large area, but the houses are dilapidated. It seems that the government will not repair the yamen from now on.

When I came to the study room, I heard people talking and laughing, and they seemed to be commenting on the test papers.

Then I heard a voice laughing and said: "I said that Bashu has many sages and sages since ancient times, but now it is lacking? Don't say that there are no people in Shu, but there are people in Shu! Hahahaha... Mingyun, the two sons of your family are not the things in the pond."

I heard Su Xun say: "Ming Gong's words are serious and may be considerable, so I have to ask Ming Gong to supervise him."

That voice was Zhang Fangping: "Geniuses, they are all geniuses! The elders are smart and cute. However, the younger ones are cautious and cautious. Their future achievements may be even higher than those of the elders."

Su You came in and saw Su Shi and Su Xun standing aside and trembling, while Su Xun and an old man in regular clothes were sitting and talking.

The old man had a thin face and a tall stature. He was wearing a crimson gauze robe and a square gauze crown. When Su You came in, he asked, "Is this the one in your family who is ready to come out on his own?"

Su Xun smiled and said: "My dear friend, this is my younger brother Su You. The one next to me is the young lady of the Shi family."

Su You led Shi Wei forward: "Su You and Shi Wei have met Mr. Ming, so don't be surprised if you are late."

The old man was Zhang Fangping. Hearing this, he smiled and said, "No wonder, no wonder. There is a test paper on the table. You can take it."

"ah?"

Zhang Fangping chuckled and said, "I came so late on purpose, maybe because I wanted to avoid taking the exam. Do you really think I don't understand?"

Su Shi secretly made the sign of three, which was an old trick used by his uncle and nephew in family examinations, which meant the third level of difficulty.

The third level of difficulty is extremely difficult. The third level of the Su family is the level of passing the test.

Su You had no choice but to go over. When he saw the test questions, he couldn't help laughing out loud. He cupped his hands and said, "Mr. Ming, please come up with another question."

Zhang Fangping was a little surprised: "Oh? This question is very easy for you?"

Su You touched his nose and said sheepishly: "This is a question type that is usually explained in Tutu Temple Primary School. I call it an example question. It is mainly used to inspire everyone's interest. Its characteristic is that the calculation is very simple and it is mainly used for analysis.

Ideas.”

This is an ancient question.

There are things today whose number is unknown,

Two out of three,

Three out of five,

Two out of seven,
Chapter completed!