The success of the production of ethylene is not obvious for the economy of the Dinghai Navy itself, because ethylene does not have a practical aspect, but it is a huge boost for the Dinghai Navy.

Zhao Xin relied on the chemistry at the beginning of middle school, which was relatively simple, except for a small number of reactions, other reactions did not have much effect on the current Dingjun.

What Zhao Xin needs is the ability to industrialize, as well as the unpredictable chemical reactions of later generations, which are already higher than the level of middle school chemistry.

In itself, for Zhao Xin, he continued to deepen the original theory, for example, in the steel plant and the cement factory, which were much higher than the materials of this era, so that the Northern Song Dynasty, which was strong in defense, went even more desperately on the road of defense.

However, the attraction of ethylene and organic matter still made him embark on the road of trying, although there were many twists and turns in the middle, and even some problems, but the success of ethylene manufacturing still gave him great confidence.

The information age of later generations not only broadened his horizons, but also brought some simple knowledge reserves, even if he did not study polymer chemistry, there are other theories, in daily life, the things he comes into contact with, as long as they are sorted out and then applied, they can produce great effects.

The successful production of ethylene is an attempt, then, even if he does not understand, as long as the direction is right, he can make it.

This kind of thinking represents some leaps in the state of mind, and it also represents more ideas.

The first thing that Zhao Xin thought of was not organic plastics, but a simpler inorganic substance, which is actually something between inorganic and organic matter, ammonia.

Previously, Zhao Xin did not have the reason for synthetic ammonia, the production of synthetic ammonia is more difficult, and the success of production is only a foundation, and then the process of generating urea and nitrate is also relatively troublesome.

In nature, there is nitrogen, which is elemental nitrogen, and then reacts with hydrogen, which is the process of synthesizing ammonia, such the simplest process, but it is very difficult, the activity of nitrogen is quite low, otherwise it will not be widely existing in nature, in the air, most of the substances are nitrogen, pure nitrogen can even extinguish fires.

Although hydrogen is a strong oxidizing agent, it is easier to react with oxygen for combustion, and react with nitrogen to directly produce ammonia, which requires a lot of conditions.

Because of the lack of various conditions, in real history, countless people devoted themselves to this research, and it was not until the period of World War I that German scientists succeeded in researching.

Before World War I, the whole world used ammonium salts to make ammonia.

In the middle school experiment, ammonia is made, which is made in ammonium salt, alkali is added, and then heated to make ammonia.

There is no problem with this kind of laboratory production, the card system collects all kinds of materials throughout China, of course, it also has a variety of ammonium salts, a lot of natural saltpeter, and artificially made nitrate, through a certain chemical reaction, it can be added by adding different acids and alkalis to produce ammonia.

This method, in fact, was the way to make ammonia in the whole world before the First World War, and after the advent of thermal weapons, explosives became a strategic material, and to some extent, the control of saltpeter could control the war potential of the other side.

In this way, the consumption of saltpeter is very large, and if the huge saltpeter deposits are not controlled, the power and quantity of explosives have always been at a relatively low level.

The emergence of ammonia, in addition to explosives, is in agriculture, it is an important material for the production of fertilizer urea, the use of urea, for the whole world's agriculture, is a huge revolution, he can increase the production of food a lot, so that with the same amount of land, can feed more people, so that technology, for the whole world, at any time, is useful.

Perhaps the emergence of chemical fertilizer will have many land problems, but at the beginning, it was good, and a large-scale increase in production can ignore all its weaknesses.

In the current Northern Song Dynasty, the fields of 4 stones can already be called very terrible, and in the entire Northern Song Dynasty, there are not many fields of more than 4 stones, and even to a large extent, they are those silt fields in the south of the Yangtze River.

This is the fertility of the land caused by years of underwater and putrefactive substances, which is not comparable to ordinary land.

This is also before the First World War, the method of using saltpeter to make ammonia, and then making urea, was very mature, and even in 1828, urea had been produced, but people had not yet recognized the possibility of urea as a fertilizer, and at the same time, the cost of such a high was high.

At that time, the world has realized the important role of fertilizer for land, especially for industrial countries, when industry and agriculture compete for population, industry of course has the upper hand, but a large number of farmers into the city, into the industrial construction, which will inevitably produce problems, manpower problems.

Although the output of agriculture is not high, that is, in the 21st century, under the premise that science and technology have been extremely developed, the output of agriculture is not much, and only a large amount of land can be concentrated together to produce considerable profits.

But without agriculture, it is not possible, without food, people have nothing to eat, without food, no amount of money can buy life.

In order to free people from the heavy agricultural activities as much as possible, scientists began to study the use of agricultural machinery, as well as the study of various substances that increase production.

From the initial spoilage matter to the vitality agent, after long-term and unremitting research, it was finally discovered that the fertilizer with nitrogen, phosphorus and potassium as the main body plays an important role for plants.

These should have been discovered by countless scientists, day and night, with unremitting efforts, in the 21st century, it is almost the same as common sense, saltpeter through acid treatment, phosphate rock is the same, in fertilizer, nitrogen, phosphorus and potassium as the most important nutrients, but different components, the absorption rate is different.

For example, the general phosphate rock, sprinkled into the field, not only will not make the fertility of the field rise, but for various reasons, cause soil compaction, and even endanger crops, only with sulfuric acid treatment, phosphate rock into phosphorus sulfate and other compounds, can be better absorbed.

Laboratory production is OK, and the card system is also lit up, but if chemical fertilizer is to be used on a large scale, the price must be reduced to a certain extent, similar to the laboratory, thousands of choices, with higher value things, and purified production, it is not advisable, this is only to verify the reaction, not the generated substance.

After the successful synthesis of ethylene, Zhao Xin put his mind on synthetic ammonia, whether it is chemical fertilizer or explosives, synthetic ammonia is an indispensable project.

Zhao Xin is a student of history, this is his own job, in addition to studying the records in the history books, he will also conduct archaeological research in the excavated tombs, and strive to make up for the missing history.

In addition to his own work, Zhao Xin's hobbies are very wide, such as longbows, such as Spanish sailing, and of course, there is also a certain amount of research on the first and second world wars that affected China and the whole world in modern times.

The invention of synthetic ammonia, in the beginning, was a military invention, and during World War I, in order to solve the problem of explosives, Germany started the research of synthetic ammonia.

At that time, the power of the whole world was in the hands of the British, who not only sat on the seven seas and owned the most powerful warships and surface ships in the world, but also controlled the world's important resources.

Nitrogen on the surface of the earth, the content is not small, even in the air, sixty or seventy percent, are nitrogen, saltpeter reserves, relatively small, the whole world, many countries, there is no large-scale saltpeter mines, only in South America, there are huge saltpeter mines.

Britain controlled the deposit and dominated the distribution area at the time, and basically, except for Britain itself, other countries had to be under British control if they were to get enough saltpeter quotas.

After the popularity of thermal weapons, saltpeter, representing the war potential of a country, without saltpeter, there is no way to fire guns, not even cannons.

The saltpeter mine in South America needs a huge fleet and transport ships to transport back, which itself is outside the control of Germany, Germany has realized that the two major groups will definitely go to war, once the war starts, all kinds of arms will be consumed on a large scale, and the German reserves of these saltpeter alone cannot be continued.

Artificially making nitrate is considered a direction, but it is only a helpless choice for the guerrillas or the rebels, and for a national level, this is only a symptom but not a root cause, and cannot completely solve the problem.

In order to break the British monopoly, Germany set its sights on synthetic ammonia.

In the middle of the war, the reason why Britain was able to hold out for so long under the premise that Britain cut off his saltpeter transportation was that Germany solved the technology of synthetic ammonia.

What Zhao Xin knows is definitely not the most detailed synthesis method, he knows a rough, the method of synthesizing ammonia is no secret in later generations, that is, after the mixture of nitrogen and hydrogen, iron is used as a catalyst under high temperature and high pressure.

This simple method allowed Germany to master the technology of synthetic ammonia and jumped out of the confinement of saltpeter.

Before the synthesis of ammonia, the production of explosives in the whole world was subject to saltpeter, and most of the explosives, no matter what kind of explosives, contained nitrogen, and without nitrogen, explosives could not be manufactured, even those liquid explosives, most of them contained nitrogen. In other words, without nitrogen, the power of explosives will not be great.

In nature, saltpeter is not very abundant, and in England, a large-scale saltpeter mine was finally discovered in Chile, and in addition to saltpeter, it can only rely on soil methods such as toilet soil, which can be used in small-scale guerrillas and resistance groups, and can also be used in large-scale industrial manufacturing, which is fatal.

In fact, there is not a lot of nitrogen in nature, at least, most of the air is nitrogen.

Even to make nitrogen, you don't need to do more, the oxygen, water vapor, and carbon dioxide in the air are removed, and most of the rest is nitrogen, maybe there are some inert gases, and some other impurities, but it does not affect the use.

Another element in the synthesis of ammonia, that is, hydrogen, when electricity appeared, the synthesis of hydrogen was no longer a problem.

In addition, at present, the field of ferroalloys is very developed, and it is not a problem for containers that can withstand high temperature and high pressure, so there is only experiment.

With the precedent of ethylene synthesis, Zhao Xin knows that as long as you prepare according to the characteristics of chemistry and then try slowly, you can always get results, but this speed is too slow.

One of the simplest dehydration reactions, using the common dehydrating agent concentrated sulfuric acid in later generations, dehydrated ethanol to produce ethylene, it took a huge amount of effort to produce more complex ammonia, although ammonia is not organic, but his complexity, not a lot at all.

High-temperature and high-pressure catalyst, this is the standard process of chemical reaction in later generations, the only fortunate thing is that his catalyst iron, Zhao Xin knows, this is the most important thing in the Dinghai.

If you want to do a good job, you must first sharpen your tools, with such a cheat as the card system, as long as you produce ammonia first, you can light up the card, through the description on the card, familiar with the process of ammonia production, at the very least, to get out, what is considered to be the synthesis of ammonia.

This method of making ammonia can only be used in the laboratory, which is a high price of saltpeter, and then through a certain reaction, the ammonia produced will push up the cost of ammonia, and then synthesize ammonia into urea, which will be very high.

The reason why chemical fertilizer was used on a large scale in later generations is that it is cheap, and one acre of land may cost three or four hundred yuan of chemical fertilizer, but if the method of making saltpeter is used, the cost of chemical fertilizer may be three or five times higher.

Only the method of synthesis of nitrogen and hydrogen is the cheapest, nitrogen has no cost, there is in the air, at most is the cost of separation, hydrogen can be produced in large quantities as long as the electrolysis of water, and oxygen is used for other purposes, even if the current electricity cost is a little high, it is also acceptable.

After completing the manufacture of ammonia in the laboratory, and for all aspects of performance, measurement, and even dissolving into water, some proportions, and finding some methods to verify its purity, the research on synthetic ammonia was officially started.

Although the preparation is very perfect, Zhao Xin also made the main points of the whole experiment clear, the effect is still not very good, there are too few talents, only one person has some understanding of ammonia, and the rest of the auxiliary personnel are only half-understood, some of them are still in the process of gradual familiarization, and can only be carried out step by step, and can only summarize which road can not be taken through step-by-step failure, which point does not need to try, and find the right way in the gradual failure.