Since it is time to develop chemistry, it is not realistic to rely on Bush, an apprentice alone. Hong Tao plans to spread the net bigger, and it is best to cultivate several chemical talents at once. If there is no guarantee that there will be Lu Bran in it.

Speaking of Lu Bulan, Hong Tao remembered a bunch of good things, such as soda ash and chlorine. With these two substances, many compounds can be produced. Chemistry is difficult at the beginning. Once a breakthrough in basic substances is achieved, a bunch of compounds followed by a bunch of compounds, which is dazzling. These compounds are very useful and involve almost all disciplines. Otherwise, chemistry is a catalyst for other disciplines, and it is completely different from not having it.

In addition to lead-acid batteries, Hong Tao also wanted to make another thing, that is glass, a true colorless transparent glass. It has been ten years in a flash. He boasted at Zhenzhou Port and Luo Youde that he could make glass products that were much more beautiful than the big cannibals, but it was stranded because there was no soda ash. Hong Tao has always been upset about this matter. Although Luo Youde has never pestered him to produce glass, Hong Tao himself cannot forgive himself.

Glass can not only make his image in front of Luo Youde perfect, but also create great economic benefits. If glass with high transparency can be made, blown into various vessels, and made into flat glass, the Golden River Empire will have several more fist products. Hong Tao's attention is not his image or making money, but the irreplaceable role of glass in chemical experiments.

If you want to play chemistry, it is not resistant to corrosion, high temperature, and easy to observe internal reactions. It is unrealistic to make cheap glassware. Some things can be estimated, and most chemical experiments require accuracy, and any other material does not have the ability to replace glass.

To create colorless and transparent glass, it must have soda ash, that is, baking soda. Sodium oxide is one of the important components of ordinary glass. It is like the skeleton of glass, which surrounds sodium ions in the skeleton grid. When firing glass, sodium oxide can also reduce the viscosity of the glass solution and easily dissolve. It is the primary auxiliary solvent for making glass.

Sodium ash is the best material for introducing sodium oxide. In addition, anhydrous Glauber's salt or sodium sulfate can also be replaced, but the effect is not as good as soda ash, and it is difficult to control the amount of sodium oxide introduction. Once the sodium oxide content is too high, the glass will become brittle and difficult to form.

How to produce soda ash? French doctor Lu Bran had come up with a solution in the 18th century. It was to react with sulfuric acid and salt to produce sodium sulfate. Then mix sodium sulfate, charcoal and limestone together and heat it in a closed manner, so that the sodium sulfate and charcoal react first to produce sodium sulfide and carbon monoxide. Then let the sodium sulfide and limestone react to produce calcium carbonate and calcium sulfide.

At this time, the calcium carbonate is black and contains a lot of impurities. It is mixed with calcium sulfide. What should I do? It is easy to do. Put these black ash into water. What is not dissolved in water is calcium sulfide and other impurities. Calcium carbonate will dissolve in water. Then collect these calcium carbonate solutions and concentrate them, and finally the calcium carbonate crystallizes itself.

Is it okay to just produce soda ash? Lu Bulan obviously doesn't think so. His method can be said to be a killer. While reacting with concentrated sulfuric acid and salt, not only does it produce sodium sulfate, but also a large amount of hydrogen chloride gas. What is hydrogen chloride gas? It dissolves it in water, which is hydrochloric acid, scientifically called hydrochloric acid. In this way, while Hong Tao used concentrated sulfuric acid to prepare soda ash, he also obtained a part of hydrochloric acid, which is equivalent to waste utilization, which is very cost-effective.

Are you satisfied with soda ash and Lu Bulan hydrochloric acid? Not yet, heating hydrogen chloride gas and copper oxide together produces chlorine. Then blending chlorine into lime water will result in a white solution with a very pungent smell. People in later generations will know what this thing is when they smell it. It is called bleach, and after dehydration it is bleaching powder! It can be used for prevention and treatment, and can also be used for medical disinfection.

That’s it. Lu Bulan is not satisfied. He is simply greedy and doesn’t even let go of the calcium sulfide waste. Put calcium sulfide and the waste gas containing carbon dioxide together to form hydrogen sulfide. After oxidizing with oxygen, it is sulfur. With this method, the Jinhe Empire no longer has to go everywhere to buy sulfur at a high price. It is prepared directly in industrial industries. Not only is the purity high, the cost can be much lower.

This is how chemistry is. A reaction will produce several substances that cannot be naturally purified. There is no such thing as waste. This year may be waste. Years later, with the development and progress of chemical research, these wastes may be precious raw materials.

In fact, apart from soda ash, Lu Bulan didn't know the reactions to the waste utilization later. They were all the results of later chemists pondering and experimenting one after another. Now, Emperor Hong reached out without hesitation and didn't give a penny of patent fees. He also arrogantly told Bush and the three classmates he found that these were all his ancestors of immortal arts. Before learning these immortal arts, he must vow to be upright, otherwise he would not say that the immortal arts failed, but he would also backfire on the person who took the oath.

The three people who came with Bush were graduates of the Navigation School, two of whom were formal graduates, and one was a former student, which means that he was not a formal resident of the Jinhe Empire, but a foreigner. Specifically, he was from the Song Dynasty, named Li Yaofu, who just turned 18 years old this year. His father was an official in Lin'an, but he had a wide connection. He was the deputy director of the Maritime Department, equivalent to the deputy commander of the Customs of the Southern Song Dynasty.

At the beginning, Li Yaofu was an impostor, pretending to be a son and nephew of a Quanzhou Maritime Businessman, and studying as a proxy student of the Straits Company. But how could this trick be hidden from the eyes of Cixi? The nautical school is the future of the Jinhe Empire, and every foreign student here has to undergo strict scrutiny. Soon his fake identity was revealed, but after asking why Li Yaofu came to the nautical school for impostor, Cixi reported his situation to Hong Tao.

His situation is quite special. He sneaked over to the Shanghai Merchants boat without telling his family. He then didn't go back. Whoever dared to mention the word "going home" would jump into the sea and commit suicide. His purpose was to come to the navigation school to study. Compared with his peers, Li Yaofu prefers the sea and those weird-sounding knowledge. After learning from the sea merchant that there is a navigation school, he has been thinking about coming here to see it.

From ancient times to the present, the second generation of officials has produced a lot of cheating goods, and Li Yaofu is no exception. His secret escape this time frightened his father and mother. He was the only one in the family! But when he saw that he was determined and would jump into the sea at any time, the deputy chief had no choice but to ask his familiar maritime merchant to get his child a fake identity so that he could go to the navigation school to go to school. No matter what, after all, it was better to go to school than to hang out all day long.

Hong Tao did not expect that there would be such people in this era. If he had not arrived, Li Yaofu would probably have become an outcast of the times. He would either become a playboy and cause trouble in the streets or be depressed and unsuccessful for a lifetime. His thinking pattern is too out of place with the times. When you see farther than everyone around you, you will often be rejected by society, and not many people can end up having a good end. But Li Yaofu's life is so good that he met himself, so Hong Tao stroked his pen, not only let him enter the navigation school, but also transferred from a proxy training class to a formal class, and attended classes with the children of the residents of the Jinhe Empire.

At that time, Hong Tao didn't think much about it. He just wanted to give the child a chance. As for what kind of achievements Li Yaofu would have in the end, he was not optimistic about it. But after a while, the child actually turned to his eyes again. You said you don't believe in fate, but it's still so magical.
Chapter completed!