Both cave 1 and cave 2 are located in the Qingfeng mountain range northeast of Lingfeng fort.
Such geographical location makes them very easy to hide, because it is difficult to completely avoid the sight of the first army and Lingfeng fort, whether going from the left or right bank of Qingfeng river.
In view of the fact that hole 1 is closer and more spacious, Arthur is going to build it into a fertilizer factory!
Everything is just waiting for his successful experiment, so that these nitrate workers around can master the complete cave nitrate boiling method.
A big fire was burning in the furnace, and the nitrate water began to roll in the big black pot above.
In order to prevent the smoke from swirling in the cave, Arthur specially asked torio to build a smoke shower when building these nitrate cooking stoves.
With the slightly choking smell of urine in the air, Arthur looked at standing aside, stared at the nitrate workers in the pot and said, "you should be careful. This process is to boil nitrate. You can constantly add nitrate water to the pot halfway. The fire in the chamber must be large and supplemented by stirring, so that the water can be quickly dried."
Hearing Arthur''s words, the nitrate workers quickly nodded and kept his words in mind.
Although they didn''t understand what the count was going to do, they didn''t want to lose the job.
The count said that as long as he can become a qualified nitrate worker, he can not only eat and live, but also get 20 silver coins a month!
God, that''s twenty silver coins a month! Almost old fellow blacksmith!
"My Lord, there''s something in the pot!" shouted Alec, the nitrate maker in charge of burning and mixing.
Arthur stepped forward and did see crystals in the pale yellow water.
"Good, Yanik," said Arthur. "Keep stirring. When the water is less, scoop the crystals into a basin to one side."
Arthur was very satisfied with the rapid crystallization, which showed that the mineral content in nitrate water was very high.
"Yes, Lord Arthur!" replied the other party.
Yanik is Gustav''s man. He works steadily. He is the director of Arthur''s fertilizer factory.
Looking at the nitrate maker, Arthur said, "you should do the same when boiling yourself. You should constantly add nitrate water to the pot to make the nitrate crystallize. Also, you must remember that this thing must not be close to the flame!"
Potassium nitrate is a strong oxidant. It needs to be kept away from fire and heat source and stored in a cool and dry place.
Seeing Arthur''s serious face, they quickly nodded and answered.
After a while, there were more and more yellow crystals in the pot. Alec took a large leaky spoon and scooped them all into a basin on one side.
The precipitated nitrate water was added to the pot again, and Arthur and others all gathered around the bailed out potassium nitrate crystals.
Looking at the pale yellow crystal in front of him, Thorne stroked his sword and asked curiously, "Sir, is this what you call nitrate? It looks like salt."
No wonder Thorne was curious. It was Arthur''s operation. He had never heard of it. He just felt that it was like the rumored boiled salt.
The workers around him stared at Arthur curiously.
Arthur nodded, looked at the workers around him and said, "yes, this is nitrate. All the work ahead is to get it. Do you remember the operation process?"
The workers quickly nodded and answered.
Although boiling cave nitrate is a laborious task, the technical content is not high. Therefore, the workers have remembered it only after watching it once.
The experiment was successful. After telling some precautions, Arthur took Thorne and others out of hole 1.
In fact, the nitrate boiled just now can only be regarded as "rough goods" at most, because there are many impurities in it, and the color of the finished product is light yellow.
This kind of nitrate is more than enough to be used as agricultural fertilizer, but if you want to use it to make explosives, it''s far from enough. It''s estimated that it''s enough to make firecrackers.
In order to turn "crude goods" into "white goods", that is, high-purity nitrate, a purification process is also required.
That is to re dissolve the gross nitrate in clean water, add fine plant ash and stir. After the water precipitates, take the clear nitrate water above to boil it again for crystallization. In this way, the obtained nitrate will be as white as snow.
Arthur didn''t tell the workers about the purification method, first, because his main purpose of boiling cave nitrate is to be used as agricultural fertilizer, and second, because he doesn''t intend to purify it in the factory.
Explosives are a good thing, especially for Shanghe collar, but the production of explosives must be carried out secretly.
……
In the castle, as soon as Arthur and others turned over and dismounted, a guard came forward and said that Gustav was waiting in the Council hall.
"It seems that the serfs led by zogya should be settled," said Arthur. He handed the horse rope to the groom and took Thorne to the Council hall.
"It''s great to see you, my friend. I won''t let me go in vain! You know, I''m not as quick as ordinary people."
Seeing Arthur coming towards him, Gustav, who was enjoying food at the council table, immediately got up and opened his arms to give him a hug.
Arthur stopped the enthusiastic fat man. He didn''t like hugging men. Besides, he had greasy hands.
After being rejected by Arthur, Gusta pretended to sigh and sat down again.
"Sit down and have something to eat," Arthur said to Thorne, and then he looked at Gustav with greasy hands and full of food in front of him. "Look at this guy. This is what he calls a trip for nothing. It''s all meat. I said, can''t you eat more politely?"
He pulled a chicken bone out of his mouth and threw it on the table. Gustav said with a smile: "It''s not my fault to be rude. It''s all the hospitality of housekeeper Benjie, and who makes these food so delicious. My friend, you know, it''s too difficult to eat with two sticks. You have to allow some people to be elegant first, some people to be elegant later, and some people will never be elegant."
"I don''t know others, but you, Gustav, will learn to eat with chopsticks!" Arthur said definitely when he thought of hot pot.
"Thank you for your trust, my friend."
The servant brought the food. Arthur asked, "how about the serfs? Is there no problem?"
"I came to the castle just to report it to you!" Gustav became excited, "My friend, it''s a pity that you didn''t take a look at it in person! You don''t know, those guys didn''t believe anything at first and thought they would be sent to fight against Warcraft, but guess what later? Ha, those guys, they must all think that the gods came to save them! They hugged their heads and cried bitterly. I can''t tell what kind of expression it was …”
After hearing Gustav''s description, Arthur nodded.
The happy appearance of the serfs, he could probably imagine, was probably a joy of breaking the shackles and regaining life.
……