Maybe some people are wondering - wasn't Portugal fighting with the Ming Dynasty? Is it useful to present a glass mirror? It's really useful! Because the Ming Dynasty emperor at this time was Zhengde...
Although Emperor Zhengde was smart, he was also very nonsense. Otherwise, in history, he would not have been so nonsense that he asked Wang Shouren to let King Ning go and let him catch King Ning himself... This was simply a joke to treat military and national affairs...
Zhengde loves to play so much, so a fresh thing like a glass mirror will definitely win its favor. If the Portuguese were the first to offer a glass mirror and bribe the "Eight Tigers" around Zhengde for help, maybe he had fought such a "small thing" like a war, Zhengde really wouldn't care.
The Portuguese were not stupid. He had inquired about the virtues of the Ming emperors and knew that Zhengde loved to make trouble, so he also had his own ideas and judgments. In history, the Portuguese finally successfully obtained the right to land in Macau through various bribery methods, becoming the only European country in Europe that could do business in the Ming Dynasty at that time.
But unfortunately, in this time and space, the Portuguese met Marin, a time traveler who was more familiar with the Ming Dynasty than them...
Marin was a Chinese in his previous life and a top student in the history department. How could Zhengde, the emperor who loves to be fooled, be clearer than the Portuguese?
Therefore, Marin would definitely give the Portuguese a glass mirror in front of the Portuguese. Then, when the Portuguese presented this thing again, Zhengde's freshness had long passed, and it would be useless to offer the glass mirror again. After all, what Zhengde liked is freshness. Once there was no freshness, it would be meaningless...
Unfortunately, the Beihai Kingdom was able to send glass mirrors to the Ming Dynasty a few months before the Portuguese. It would definitely be rare for Zhengde to get glass mirrors for the first time. However, after playing with them for a few months, even if they were rare at first, they would get tired of it. At this time, the Portuguese would not have any novel effects when they offered treasures.
However, how to explain why I could put the glass mirror on a few months in advance...
On the way back to the local area, Marin came up with a reasonable explanation - he had already sent someone to take the land along the old "Silk Road" and presented a glass mirror...
It is not like the sea route that requires a long circle, and you can take a relatively straightforward route. If you are in a hurry to travel, you can indeed arrive early.
Moreover, the reasonable explanation that Marin intends to give is that after he left Venice, he hired Venetian ships to send glass mirrors to Egypt, and then rented camels from Egypt across the desert and passed through Persia, then rushed from the Western Regions to India, and then transported them to Southeast Asia by merchant ships...
In this way, it is definitely much faster than the Portuguese fleet bypassing the entire African continent. After all, it is indeed reasonable to just be a glass mirror, and it is urgent and fast transportation by land...
...
But in fact, Marin brought back the mercury-plating tin-foiled glass mirror that he had taken with 18,000 gold coins back to the local area.
Because he was worried about the toxicity of the mercury on this glass mirror, Marin did not treat this expensive glass mirror as a treasure at all. Instead, he directly paddled it with a natural sponge, placed it in an exquisite wooden box, held it by his subordinates, and brought it back to the local area.
As Marin expected, Angela couldn't put down this mirror when she saw it. After all, women love beauty. Although Angela is over thirty years old, she also loves beauty.
After getting this glass mirror, Angela seemed to have obtained some rare treasure and immediately took this glass mirror for herself and did not let others touch it. Felice, Angela's real sister, wanted to spy on her, but Angela refused without hesitation.
So Felice muttered - You even shared your husband with me, why can't you share the glass mirror?
Then, Marin even saw Angela holding a mirror while sleeping. Then, Marin was frightened...
Marin knew that the mercury component had not yet evaporated for two or three months after this mirror was produced. If it was occasionally used to take photos, it would be fine, but if you were held and sleeping, you would definitely be looking for death...
However, Marin could not publicly publicize the toxicity of mercury tin foil glass mirrors. Otherwise, he would not be able to make a lot of money using this glass mirror in the future.
Therefore, Marin quietly told Angela that this mirror is poisonous, and the poisonous gas cannot be dissipated in less than a year...
Angela was immediately frightened, but she was extremely disappointed that she could no longer use such a clear glass mirror.
In addition, other women in Beihai Country are also very concerned about this glass mirror. For example, Malin's cheap mother, Madame Mary, also likes this glass mirror very much and often comes to take a mirror to look. As a daughter-in-law, Angela is not easy to stop...
"What should I do? Women love beauty so much? I'm afraid of death?" Marin was very worried.
Angela told Marin very seriously about his doubts - for women, beauty is the second life...
Marin had to express his admiration, but for the safety of his relatives, he also had to find a way...
"How to do it? It must be safe and satisfy women's nature of loving beauty..."
After thinking about it, Marin finally felt that he could only use that method...
"There is nothing to do, I can only find a way to copy the 'Silver Mirror Reaction'..."
Yes, Marin intends to use his middle school-level chemistry knowledge to create a "silver mirror reaction" to make a safe silver-plated glass mirror to replace the toxic mercury-plated tin foiled glass mirror for use for Angela and Madame Mary.
Moreover, silver-plated glass mirrors have much higher brightness than tin foil-plated glass mirrors. After all, silver has higher brightness than tin foil...
The silver mirror reaction was discovered by German chemist Liebich in the 1830s. After this method was discovered, people found that the glass mirror made in this method not only has higher brightness and clarity, but also safer. After all, there is no harm from the toxic mercury steam. Then, the silver-plated glass mirror quickly replaced the mercury-plated tin foil glass mirror. After the 20th century, the cheaper aluminum-plated glass mirror replaced the silver-plated mirror...
This chapter is not over, please click on the next page to continue reading! Of course, Marin cannot get out the aluminum-plated mirror. Mainly, Marin cannot get out the aluminum thing. Marin knows how to electrolyze aluminum, but the problem is that he does not have the important raw material needed to electrolyze aluminum - ice crystal. It is said that in nature, it seems that only Greenland has natural ice crystal ore. When electrolytic aluminum first appeared, Greenland's ice crystal ore was almost the most important source of ice crystal in the world. Until people discovered that ice crystal could be artificially synthesized, and then the aluminum smelting industry could be truly popularized.
However, that should have happened after World War II. Marin remembers that during World War II, the United States specially sent people to control Greenland to prevent the Germans from getting enough natural ice crystals...
Marin doesn't know how to artificially synthesize ice crystals. He doesn't know where the natural ice crystal ore is on Greenland. Although Marin knows that the ice crystal ore on Greenland must be on the southwestern coast, Greenland is too big, with a long coastline and an extremely harsh climate. Therefore, it is very difficult to find that ice crystal ore. Marin should not think about aluminum smelting for the time being. Even Marin doesn't know what the ice crystal looks like. Even if he sends people to find it, he doesn't know how to find it! The laterite nickel ore in Cuba is too obvious, so it's easy to find. How to find ice crystals?
It is too simple to use silver mirror reaction to make silver mirrors. After all, this is a very important part of middle school chemistry. For Marin, the first middle school master, I remember it very clearly.
The process is actually very simple. It is to first use silver nitrate and sodium hydroxide solutions to configure the silver ammonia solution. It seems that the preparation method is to drop sodium hydroxide solution into the silver nitrate solution, then add dilute ammonia water, or impart ammonia gas to obtain the silver ammonia solution.
Then, add formaldehyde, acetaldehyde or glucose solution and a "silver mirror reaction" can occur, obtain a silver plating layer, and produce a very clear and high-bright silver-plated glass mirror...
For marin, silver nitrate and sodium hydroxide solutions are very easy to obtain. Although formaldehyde and acetaldehyde are difficult to prepare, they can also be made. As for glucose, it is even simpler - honey directly contains glucose ingredients...
What is really difficult is ammonia or ammonia...
After all, there were synthetic ammonia equipment in later generations, making ammonia gas simple. But in this era, the preparation of ammonia gas was very unrealistic.
"No, there is a way that seems to be possible..." Marin suddenly remembered - it seems that the urea solution seems to contain urea. When heating the urea solution, it seems that a small amount of ammonia can be obtained...
He did it as he said, and then the great Emperor Marin took a group of chemistry men to cook urea...
After a very unpleasant and disgusting operation, Marin finally collected a little ammonia and penetrated it into the water, obtaining dilute ammonia water...
Afterwards, after the silver ammonia solution was prepared, Marin dripped in honey and heated it. Soon, he obtained a very bright silver-plated glass mirror...
Chapter completed!