Among the cards, the soda ash that has been lit up cannot be used, in fact, it only caused a little trouble, with soda ash, at most it is to save a few steps, after having alum oil, but also with sulfuric acid, other acids and bases are not a problem, it is a simple reaction process. Pen & Fun & Pavilion www.biquge.info

After the liberation of China, in order to lay the foundation of chemistry, it specially organized such a tough battle, and with the help of foreign experts, the problem of three acids and two alkalis was basically solved, and the obstacles were cleared for the development of the chemical industry.

Among the three acids and two alkalis, which are also divided into different grades, among the three acids and two alkalis, the most important and irreplaceable is sulfuric acid, so sulfuric acid is also called the cornerstone of chemical industry.

Without sulfuric acid, other acids and bases are difficult to manufacture, if hydrochloric acid is produced first, it is unlikely to directly produce sulfuric acid, hydrochloric acid activity is not the highest, in the conventional environment, sulfuric acid cannot be replaced.

In the conventional environment, that is, there is no high temperature and high pressure, no catalyst, and no principle of ionic chemistry, in the specific environment of the Northern Song Dynasty, there is no way to achieve higher-end chemistry for the time being.

Zhao Xin is not a professional chemist, and his understanding and cognition of chemistry is limited to chemistry at the beginning of high school, and he is not able to use things that are too complicated, let alone produce.

Sulfuric acid is the easiest chemical to obtain, and it is also the only acid possessed in ancient China, which can be obtained by calcining alum, which was called alum oil in ancient China, and it is also a name that complements each other.

However, alum oil is only dilute sulfuric acid, the use of dilute sulfuric acid is not wide, in the Northern Song Dynasty, most of the use is to remove some rust that is difficult to remove, wash off some things that are difficult to wash off, at that time in ancient China, did not realize that only a simple transpiration, can obtain concentrated sulfuric acid.

In fact, it may be discovered that ancient people did not have a systematic understanding of chemistry, and chemical products, including basic products such as three acids and two alkalis, are all very dangerous, and if you are not careful, they are more poisonous than poisons, and the harm caused is also greater.

With sulfuric acid, to be exact, with dilute sulfuric acid, the dilute sulfuric acid transpiration to a concentration of 98.5% concentrated sulfuric acid, soda ash can be done, which is a very traditional and very simple reaction.

This is the most traditional Lubran alkali method, which uses sodium sulfate to make soda ash, and it is also the only way to make soda ash after the chemical manufacturing method began, and it is also a method that has been used for many years.

The basis of this method is the use of sulfuric acid, which is more corrosive to the equipment, and the purity of the finished product is not high, so a series of separations are required to obtain soda ash with ideal purity, which is very costly, and was later replaced by the more accurate and cheap Solvay method.

In the Song Dynasty, the Solvay method was the most unrealistic, that needed to synthesize ammonia, synthetic ammonia is a modern method, only appeared, before that, ammonia and gunpowder, all needed was natural saltpeter, not the most abundant nitrogen in the air.

Perhaps in the future, with the discovery of some permanent magnets and artificially manufactured some magnets, Zhao Xin will make electricity appear in this world, but before that, electricity is still in the hands of the god of nature, and people's most basic understanding of electricity is the lightning and thunder in thunderstorms, which is too huge to attach the power of heaven and earth.

Before the advent of electricity, before electricity was effectively utilized, all electrolysis methods were not very suitable, synthetic ammonia not only needed electricity, but also needed high-temperature and high-pressure vessels, even steelmaking was miniaturized in the Northern Song Dynasty, making such a container was simply embarrassing, and the Lubran alkali method was the only choice.

The main materials of the Lubran method are salt and sulfuric acid, the first step is to complete the machine production of sodium sulfate, with natural miscanthus nitrate, minus the process of reacting with salt and sulfuric acid to generate sodium sulfate, and directly use sodium sulfate, so that the corrosion of the equipment will be reduced to a minimum, and it is not a large-scale industrial production, as long as the card is lit.

The biggest effect of the card system is that after lighting, you can get a certain kind of card through money, soda ash is the most primary chemical raw material, in the natural mines, the process of lighting is completed, its level must be a level, and the price will not be too expensive, in the future, it will be born from a steady stream of soda ash, which is very critical for industrial production.

The biggest difference between industrialization and the laboratory lies in the yield and cheapness, even if it is a simple reaction, if the final quality is uncontrollable and the price is too high, at most it will be studied in the laboratory, and it will not be able to enter the industrial production.

For Zhao Xin, this is definitely a good thing, spend 30% more money, get a stable source, soda ash steamed buns, the amount will be not small, without a stable source, profits and publicity can not be stabilized, and the profits generated cannot be improved.

Perhaps, after having a stable territory, Zhao Xin will slowly study and gradually realize the Lubran method, before that, lighting up the soda ash, and then using the cards to manifest the soda ash is the only choice.

Because he had something in his heart, he ate breakfast absentmindedly, and the exquisite food did not arouse his appetite at all, and at the first time after breakfast, Zhao Xin carefully thought about the steps of the Lubran alkali method.

Skip the process of replacing table salt with concentrated sulfuric acid and generating hydrochloric acid and sodium sulfate, and directly take the next step to replace sodium sulfate with charcoal, and react with lime at high temperature to generate soda ash. After the dehydration of sodium sulfate decahydrate, it is sodium sulfate, which is in the card system, and the purity is still quite high, and it will be very convenient to use, saving a lot of time.

After recalling carefully and thinking through all the tricks, Zhao Xin felt that there was no omission, so he started to start.

Through the card system, Zhao Xin actually produced miscanthus salt, which is a traditional Chinese medicine, a natural mineral, and an important raw material for the future manufacture of soda ash.

China is the largest producer of miscanthus nitrate, natural miscanthus nitrate, the history of China's use of miscanthus nitrate, has been traced back to one or two thousand years ago, in pharmacies, miscanthus nitrate is also a very common traditional Chinese medicine, can have a certain effect on diarrhea and the like.

Natural miscanthus nitrate is generally sodium sulfate decahydrate, but slowly ventilation and dehydration, or heating to five or six hundred degrees, can become sodium sulfate, in fact, in the pharmacy, has been lit up sodium sulfate decahydrate and sodium sulfate, the reason is very simple, part of the miscanthus nitrate is placed for too long, dehydration into sodium sulfate, which eliminates the need to continue the process of processing miscanthus nitrate.

Chemical production, every step saved, will save a step and a lot of time, with higher purity sodium sulfate, the production of soda ash, there is no problem, high purity sodium sulfate, to be able to produce enough purity soda ash, even if the purity of the Lubulan method is not high, but that is compared with other alkali methods, the special properties of soda ash, so that a lot of impurities of the Lubulan method can be removed by washing and other simple methods, but it is an increase in steps.

This is placed on industrial production, a bit cumbersome, Zhao Xin's card system, skipping the industrial products and laboratory products moat, as long as it can be lit with the help of the card system, it can be manifested through the energy of money conversion, which greatly saves time.

Perhaps, this is the more advanced theory of the 32nd century, under different scientific and technological systems, what seems difficult can be solved in countless ways.

With sodium sulfate, this is only the first step, saving one step of the Lubrand, and the remaining two steps, not only need more accurate control, but also need some other equipment, fortunately, this is a very simple industrial alkali method, the requirements for equipment are not high, Miaojiazhuang is such an ancient village, can be satisfied, as long as there is iron and blacksmiths.