Due to the imperial examination, Confucian classics occupy an overwhelming position in the academic period. As for other disciplines, including mathematics, they are all elective courses. Although they still talk about the "six arts" in general, in fact, except for Confucianism, the rest are just people who practice based on their interests.

What Zhao Han learned is no exception. He also specializes in Confucianism. He is familiar with Confucian classics and starts his mouth. He has not learned arithmetics before, but arithmetics is a small path, and Zhao Han only dabbled in a little bit. The royal family has many restrictions, and left-languages ​​such as alchemy are restricted. Zhao Han was instilled since childhood and is mostly liars. Therefore, Zhao Han not only did not dabble in, but also had a stubborn prejudice against alchemy.

Zhao Han naturally doesn't understand what elements, atoms and molecules are. The science of chemistry is definitely not something that can make people enter the house in just one or two days. In short, in Zhao Han's eyes, no matter how you see the methods used by Mao Geng are like alchemy, Mao Geng is like a Taoist sorcerer. However, Mao Geng claimed from the beginning that he had a supreme master, and it was not surprising that he knew alchemy. What's rare is that Mao Geng was willing to pass the secrets of his master to himself.

However, Zhao Han was born with a deep-rooted resistance to Taoist alchemy, and he was a little disdainful of the left-hand side in his subconscious. Although Mao Geng and Zhao Han explained that this was science, specifically a discipline of science - chemistry, although its origin was alchemy.

But Zhao Han just doesn't look down on this chemistry, which is also known as scientific.

It can only be said that Zhao Han is a little paranoid. Compared with being addicted to steam power, Zhao Han has limited interest in the discipline of chemistry. In the words of later generations, Zhao Han is seriously biased towards science.

Extraction of soda ash made from vinegarite is a native method in the 20th century. Only in the Great/Leap Forward era would this high-energy-consuming method be used to work hard, but eight hundred years ago it was advanced technology. It can be said that Mao Geng won the jewel of the crown of chemistry in this era, but unfortunately Zhao Han could not appreciate it, which is a bit regretful.

Soda ash is the main raw material for making glass and can also be used to make caustic soda. Caustic soda is an important raw material for making soap and paper. Being able to produce soda ash means that the two alkalis in the "three acids and two alkalis" have been settled.

The burning of glass consumes a lot of soda ash. For every 1,000 kilograms of glass, it consumes 200 kilograms of soda ash. During the new development, the burning of glass is made of plant alkaloids made from filtrate from wood ash. One is the yield is limited, and the other is difficult to purify. Therefore, Mao Geng is looking forward to the day of industrial production of soda ash from the first day of the successful burning of glass.

Of course, the production of soda ash is not as good as the Lu Bulan method in terms of output, but it has its advantages in the purity of soda ash. Moreover, in order to produce gunpowder and activated carbon, charcoal has been burning in large quantities. If vinegar stone is not recycled, it would be wasted. As for another raw material, Glauber's salt, China's Glauber's salt reserves are the world's largest. Later generations of investment promotion introductions in Sichuan and Hengyang, Hunan, often unambiguously declared that the local Glauber's salt reserves reach N0 million tons, and so on, so there is no need to worry about the source of Glauber's salt.

The mineral salt wells in Hengzhou and the mineral salt wells in Sichuan produce a large amount of Glauber's salt. The by-products obtained from mining rock salt are very cheap, so the cost of purchasing Glauber's salt is almost negligible. It is just that the purification of Glauber's salt is a bit troublesome.

Of course, the soda ash method for vinegar stone is limited because the charcoal kiln is quite limited to collecting vinegar stone. Cooking 100 kilograms of charcoal can only collect eight kilograms of vinegar stone. Therefore, Mao Geng never insists on the vinegar stone method to make alkali. In fact, the Lüblan method to make alkali is also being produced.

In his previous life, his distant uncle introduced the advantages and disadvantages of the vinegar stone method and the Lu Bulan method. Of course, the main purpose was to praise the vinegar stone method he developed. For example, he proudly claimed that vinegar stone produces soda ash, and the sulfate produced by the soda ash is almost negligible. In addition to the high purity of the soda ash, the additional products also include acyl/one. Of course, all comparisons are based on the Lu Bulan method as the comparison object, and Mao Geng also heard about the famous Lu Bulan method.

Speaking of which, in 1775, the French Academy of Sciences offered a huge reward and publicly solicited practical methods for making soda ash. Sure enough, there must be a brave man under the heavy reward. This brave man is Lu Bulan - only one more word "lan" than Lu Bu, a famous brave man in history. As we all know, Lu Bulan developed the famous Lu Bulan alkali method. The first step in this alkali method is to react sulfuric acid and salt to make Glauber's salt. Glauber's salt is mixed with limestone and charcoal and calcined in the furnace to obtain soda ash.

Fortunately, the Glauber's salt in the Song Dynasty was digging underground, especially in Hengzhou. It was 20 to 30 meters digging to make Glauber's salt, which was very expensive and cheap. This saved the step of making sulfuric acid. However, what bothered Mao Geng was that the purity of the Lübran method of alkali has always been not very good, so now we have to rely more on vinegar stone to make alkali. It seems that we have to imitate the French approach and give a reward and incentive. Perhaps someone will try every means to find the trick.

But no matter what, the "two alkali" chemical industry is a precursor.

Zhao Jian not only saw the process of making soda ash, but also the process of making caustic soda. He used soda ash made from vinegarite as raw material, heated water to make a saturated solution of soda ash, and then added excessive lime milk to make caustic soda. However, Zhao Jian just took a look and did not raise any questions. Mao Geng originally wanted to explain to him that hot water could improve the soda ash soda soda in water, etc., but Zhao Jian really didn't have much interest in chemistry.

"Mao Geng, these smoke, air, powder, water, liquid, ash, I'm so impressed. These alchemy techniques----------------------------------------------------------------------------------------------

Mao Geng shook his head!

OK! It would be fine if you don’t applaud my compliment, but you have to regard dignified chemistry as an alchemy. How can this be humane!

"Mao Geng, I've figured it out, I'd better go and build a ship."

Regarding Zhao Han's request to participate in shipbuilding, Mao Geng expressed his understanding that a dignified Duke must certainly focus on major projects, such as major projects related to national economy and people's livelihood. Zhao Han focused on planting sweet potatoes before. Although Zhao Han has been paying attention to the growth of sweet potatoes so far, he does not need to water it or he does not need to water it. What he really cares about is how good the sweet potatoes can have in a few days. This is ultimately a correct attitude that the grain-based era should have as the successor of the royal family.

Zhao Yan was young and had a great age. In Mao Geng, it seemed that nothing else would be in line with the identity of another Duke. However, Mao Geng had always regarded it as a shipbuilding industry that represents the highest level of manufacturing. It was guided by his beloved Duke. Whether in politics or in satisfying Zhao Yan's curiosity, he had no other choice.

"I fully support whatever the Duke wants to do."

As long as he did not build gunpowder, landmines, or turned around the boiler, Mao Geng felt that Zhao Han would do anything else, he could let him do it.

But Zhao Han's words below surprised Mao Geng:

"Mao Geng, the ship built by Jiang Zhiang seems to be too small. I think it is necessary to build a large one. However, I don't know if the ship is too big, can it also use steam power? I mean, can steam power push a large ship like a small boat?"

Mao Geng knew that Zhao Yan had seen a whaling ship built by Jiang Zhiang. The reason why this whaling ship was powered by a steam turbine was on the one hand for experiments and on the other hand for whaling needs. Mao Geng remembered that whaling ships have always paid attention to speed, and their purpose was to catch up with whales that maneuvered quickly in the sea.

"Duke, steam power can of course be used on large ships, but it cannot reach such a high power for the time being. This has to be done slowly. Maybe in a year, the steam engine that can drive the large ship can be built."

"I heard Jiang Zhiang say that the boat needs to be equipped with cannons, what are cannons?"

I even know this! OK! It seems that there is no secret to Zhao Han.

"As for cannons, I made two and tried them, and there are still some problems. However, in two days, the Duke of the State will be able to see the power of cannons."

Speaking of cannons, what Mao Geng is most urgently trying to make is the whaling cannon. Mao Geng thinks that since he builds whaling ships, he must build a weapon that matches the whaling ships. In fact, the cannon was successfully tested a while ago, but it was just starting to build it. There are many problems. If you put it with others, you must be overjoyed. But in Mao Geng's eyes, the casting technology of cannons is still a bit slack and needs to be improved and improved.

The whaling cannon is more complicated. It requires the explosive power of gunpowder to fire the whaling gun, and it also needs to be accurate at one shot. This is a bit difficult.

Regarding cannons, Han Tuozhou only heard that Mao Geng was trying to produce an explosive weapon, but Han Tuozhou was very busy recently, and Mao Gen developed too many new things, and he was a little dazed. Therefore, Mao Gen did not invite Han Tuozhou to see it, and Han Tuozhou did not take the initiative to ask for onlookers.

Of course, this is because the caliber of the gun that Mao Geng tried to produce was a bit pitiful, only forty millimeters, and the noise caused was not large enough. For the time being, several of Mao Geng's disciples who were responsible for the trial production of the cannon knew the detailed situation. Although they were very encouraged after the successful test shooting, they felt that Mao Geng seemed not very satisfied, as if they were still unable to show off. With Mao Geng's advice first, they consciously did not show off everywhere.

Han Tuozhou was indeed very busy during this period because Mao Geng pushed most of the sales of the products to Han Tuozhou. Anyway, Mao Geng himself was not responsible for the sales. In addition to the bulk procurement of West China Construction Company, sales were entrusted to Han Tuozhou in Kaohsiung. As for Wen Yuan in Lin'an, he was also responsible for part of the sales, but the sales power was mainly in the hands of Han Tuozhou.

In other words, Han Tuozhou and Wen Yuan are two regional distributors of Kaohsiung products, and Han Tuozhou even holds the right to sell most of the cement and time watches.

Given that all the new industrial products produced in Kaohsiung are in a state of severe supply and demand, the newly built four-star inn in Kaohsiung has gradually become lively in recent times. Merchants who have crossed the Taiwan Strait to come to Kaohsiung to purchase scarce goods have begun to show their magical powers, and even take various back doors to various channels, with the purpose of being able to arrive.
Chapter completed!