After obtaining the ether, Marin was washed several times to remove the sulfuric acid and alcohol components, and then threw it to Da Vinci for an animal anesthesia test. (The specific process will not be described)
Afterwards, Marin, which also possesses concentrated nitric acid and ether, suddenly remembered the world's first smokeless gunpowder - B gunpowder produced by French chemists in 1884. The raw materials are nitrosized cotton and paraffin. I won't tell you the specific production process (I dare not tell you)...
The preparation of B gunpowder is very simple, but the cost is too expensive. Because the ether in its raw materials is made of alcohol, and alcohol is made of grain. The price of grain in Europe is so expensive now, it is obviously very expensive. Moreover, Marin now has less concentrated sulfuric acid. After all, Wiltz makes concentrated sulfuric acid naturally oxidize the sulfuric acid, the process is slow and the yield is small. As for the oxidation of sulfuric acid with oxygen, Marin knows it, but the catalyst V2O5 needs to be used... This is too professional, Marin does not know how to obtain... Therefore, he can only obtain it by native methods, but the amount of sulfuric acid must be obtained relatively small...
Fortunately, the simplest way to produce superphosphate is to use sulfurous acid, so there is no need to deal with nickel sulfide laterite. Therefore, Marin decided to use sulfuric acid to concentrate and produce B gunpowder, while sulfuric acid is used to treat superphosphate. Moreover, based on the principle that "pollution of the environment is not as good as concentrating one place", Marin decided to transport all apatite from Western Sahara to the Great Inagua Island, where Wiltz handles laterite nickel ore, and make superphosphate on site. Then, the superphosphate is transported back to the local or local plantations in the Americas.
Superphosphate is dissolved in water and absorbs instantly for the crop fields. Therefore, it can not only be used as a pre-floor fertilizer, but also as a quick-acting top dressing during the growth process. It is sprinkled on the same day and takes effect on the same day...
Instant superphosphate, coupled with the same instant German local potassium salt, can make agriculture more prosperous. In fact, there is no need to mention the fertilizers, nitrogen fertilizers, and potassium fertilizers are also very good. There are potassium salt mines in Germany. After Marin found the potassium salt with flame color reaction, he contracted several potassium salts, which are now specially used to make mixed fertilizers. It was just that apatite was used as phosphorus fertilizer before, but the effect was a little worse. Now, with superphosphate, the shortcomings of fertilizers have been filled. So
, In the future, the yield of rye and wheat may exceed 500 pounds, such as six or seven hundred pounds or even eight hundred pounds. As for why you don’t want a yield of thousands of pounds? The main reason is that the seed varieties are not good now... In addition, nitrogen fertilizer uses manure, which is actually not much better than apatite. So, unless the seed problem is solved, and saltpeter is used as nitrogen fertilizer... But is this possible? Even if you take the saltpeter mine in Chile, Marin will not be too luxurious to use saltpeter as fertilizer...
Using superphosphate as a fertilizer, even if other European countries find samples, they don’t know what they are. After all, the appearance of superphosphate and apatite are already very different. Even if others steal samples of superphosphate, they will not know what they are. At least, this era cannot be done.
However, superphosphate is acidic. It is said that fertilizing in acidic soil will react with the acid salt in the soil and regenerate water-insoluble phosphate. Therefore, it should be pointed out that the acidity and alkalinity of the soil must be determined. If it really doesn't work, it can be used with limestone to improve alkalinity. In fact, most fertile soils, such as humus soils such as black soil, are acidic and darker in color. However, alkaline land is mostly poor and has a lighter color such as yellow-white.
Then, generally, the soil of acidic fertile soil is generally softer, just like too acidic teeth will be softer. Alkaline soil is generally poor in sturdy and breathable. You will understand after watering it - the water of soft acidic soil quickly penetrates down, while the alkaline soil slowly penetrates down.
Marin originally wanted to measure the pH of the soil, which was more accurate. However, Marin didn't understand how the PH test strip was produced. After all, his chemistry knowledge was only at the middle school level... Therefore, he could only use this "empirical" method to judge the acidity of the soil...
However, for Marin, the territory he controls is mostly located in coastal areas, with abundant water resources and a lot of humus in the soil, which is basically acidic soil. Therefore, it is necessary to add some lime and mix superphosphate to fertilize. As for those yellow and white barren areas, there is no need. Anyway, the acidity of superphosphate is exactly neutralized with alkaline land...
Marin didn't know that because superphosphate was used, it had to be matched with limestone. As a result, a rumor spread that Marin used limestone as fertilizer and achieved high yields... Then, the whole of Europe competed to imitate...
However, most of the fertile farmland in Europe is acidic soil. After limestone is applied, there is actually an increase in yield. Although the increase in yield is not large, at most 10% or 20%, it is also very exciting. However, a small number of farmlands in their homes are obviously dry and hard alkaline soil, and they also follow the trend of applying limestone as fertilizer, and the yield is even lower...
...
Because the amount of concentrated sulfuric acid is very limited, Marin only made 20 barrels of smokeless gunpowder B gunpowder this time. If you want more, you must have enough concentrated sulfuric acid.
Now, Marin just finished B gunpowder, and Da Vinci came to the door again...
It turned out that in order to test the anesthesia effect, Ada had already annoyed five sheep, three dogs and two cows in the palace... Then, after using up all the ether, he ran over and asked Marin again...
However, Marin has already used it all for B gunpowder, where is the ether left? Then, Leonardo da Vinci got angry and started arguing with Marin...
If an ordinary craftsman dared to blow up the thorn in front of him, Marin would have shaved his ears and slapd it - paralyzed, sober up, recall who you are...
However, Marin was a little helpless about Leonardo da Vinci. This guy Marin regarded it as a treasure. After all, Leonardo was the only scientist who could show off in this era. However, the old boy Ada probably knew this and actually got arrogant and dared to quarrel with him...
"I'm proud of my favor! I'm not so tender that I'm so tender that I'm so tender that I'm so tender that I'm so tender that I'm so tender that I'm so tender that I'm so tender that I'm so tender that I'm so tender. What makes Marin have nothing to say is that Da Vinci's quarrel with him is mostly because of scientific research, and he will never be so arrogant for no reason... So Marin has no choice but to do anything to him...
"It's really no sulfuric acid? I'm in a hurry!"
"It's gone, I've used it all! Moreover, this thing is only produced in Cuba." Marin said angrily.
"No, I remember when I was in Italy, many alchemists had sulfuric acid in their hands." Da Vinci said in confusion.
"Italian...alchemist..." Marin was stunned and then overjoyed:
"Yes, why did I forget those ancient chemists!"
There were no professional chemists in Europe in this era. Those who worked in chemistry were basically all eccentric alchemists...
Most of these alchemists rely on manufacturing and selling drugs (more poisons than curing diseases) to maintain their lives and research, and at the same time they dream of "turning stones into gold"...
The above is not the point, the point is that some of these alchemists are indeed proficient in the production of sulfuric acid. Moreover, sulfuric acid is also an important alchemy material...
There are many volcanoes in Italy, which are rich in sulfur. Many Italian alchemists are good at directly using sulfur to make sulfuric acid and then use it for alchemy research...
Marin was worried about the lack of sulfuric acid at this moment, so why not recruit these Italian alchemists to help him make sulfuric acid.
However, considering the serious harm caused by sulfuric acid production to the environment, Marin decided to use another cooperation method - sending a special chamber of commerce to Italy to purchase sulfuric acid from alchemists who can make sulfuric acid... In this way, the production of sulfuric acid is avoided from polluting the local area. As for the pollution of the air in Italy, what does it have to do with it?
In this way, Marin will not lack sulfuric acid in the future. After all, although the efficiency of producing sulfuric acid in this era is very low, it accumulates in small quantities. Marin can cooperate with alchemists in Europe who know how to make sulfuric acid and acquire it in large quantities. At that time, there will not be a lack of sulfuric acid.
Chapter completed!