Flipping through the pages, I saw the firearms chapter in the previous episode, Volume 12.

Han Zhen's eyes froze and looked at it carefully.

There are many types of firearms recorded in the book, such as turkeys, bamboo fire harriers, iron-billed fire harriers, gunpowder whips and arrows, muskets, smoke blankets, poison smoke blankets, thunderbolt fire blankets, artillery, etc., and each of them is accompanied by pictures and annotations explaining the power and effects of each firearm.

Seeing this, Han Zhen couldn't hold back at all and laughed.

Zeng Gongliang is a fool, but he ordered him to compile this book, and Song Renzong Zhao Zhen, who was printed all over the world, was not clean.

The firearm is a surprise, the attack is unprepared, you write out the power and the effect of various firearms, and use a fart!

Further down, there are even more outrageous.

It turned out to be the recipe for gunpowder......

[Gunpowder Law Jinzhou sulfur 14 taels, wohuang 7 taels, flame nitrate 2 and a half catties, Ma Ru 1 tael, dry paint 1 tael, arsenic 1 tael, fixed powder 1 tael, bamboo Ru 1 tael, Huang Dan 1 tael, yellow wax half a tael, clear oil 1 point, tung oil half a tael, pine resin 14 taels, thick oil 1 point. 】

Han Zhen frowned slightly, and muttered to himself, "Do you need so many materials for gunpowder?" ”

Isn't it just sulfur, saltpeter, and charcoal?

Great, in order to prevent explosions caused by excessive dust during manufacturing, it seems that there is no need for anything other than some egg whites.

This is dry lacquer again, and pine resin again...... I'm afraid it's not alchemy.

Let's give it a try.

Han Zhen took out a pen and paper and copied the recipe materials, and then called a soldier and asked him to go to the county town to purchase.

"County magistrate, I don't recognize so many words."

The soldier took the paper, his face embarrassed.

Although he has been taking night classes all this time, he has mastered less than 100 words, and they are all daily words.

At the moment, I don't know most of the paper on this paper.

Han Zhen said: "If you don't recognize it, you will ask the officials of the county government to help, and say that I ordered it." ”

"I see."

The soldier nodded, mounted a walking horse and left the barracks.

After a short time, the soldier returned with a bag of materials.

Han Zhen took the materials, thought about it, and didn't dare to make them in the White Tiger Hall.

After all, it's gunpowder, and if there is an accident, it will be troublesome to burn the White Tiger Hall.

Armed with his tools, he made his way to a clearing deep in the barracks.

This clearing is located at the edge of the mountain, next to the forest, and the nearest building to the barracks is two hundred meters, so you can toss it around.

Taking out the materials one by one, Han Zhen turned out the "General Essentials of the Martial Arts" again, and followed the steps recorded in the book.

[Right to Jinzhou sulfur, wohuang, flame nitrate pounded together, arsenic yellow, powder, yellow dan with research, dry lacquer pounded for the end, bamboo ru, Ma ru that is slightly fried for the minced, yellow wax, pine resin, clear oil, tung oil, thick oil boiled into paste. Boil into a paste. Before entering, the end of the medicine is swirled and even, wrapped in paper five times, bound with hemp, and not to melt pine resin. With cannons, there are poisons and smoke balls, and fire attacks the door. 】

After nearly half an hour of busy work, Han Zhen finally made a firearm.

The shape resembles an enlarged and thickened cannonball, and in order to make the paper hold the gunpowder more tightly, the outside is tightly wound with hemp rope several times.

The reason why it took so much effort to make it was because I wanted to see how powerful the firearms of the Song Army were.

The ancients were a little bad about it, they often liked to exaggerate when describing numbers and some scenes.

For example, Zeng Gongliang recorded in "The General Essentials of the Martial Arts" that the sound of gunpowder explosion was like thunder, and what was the internal organs split...... Judging from the records, this power is about to catch up with the high-explosive grenades of later generations.

At this time, Nie Dong's voice sounded in his ears: "Is the county magistrate alchemy?" ”

"Make gunpowder."

Han Zhen replied without replying.

Nie Dong was stunned for a moment, and then suddenly said: "Oh, the county magistrate made firearms!" ”

Hearing this, Han Zhen was curious: "Have you used it?" ”

Nie Dong looked disgusted and said: "Naturally, I have used it, this thing is not very powerful, and if you don't do it well, it will hurt yourself." ”

"Since you've used it, you're going to put this on point."

Han Zhen said, handing over the large 'cannonball' in his hand.

He really didn't know what to do with this hand-made firearm.

"Order!"

Nie Dong took over the cannonball, picked up the fire fold hanging from his waist, and directly lit the fuse.

Seeing that the fuse was ignited, but Nie Dong was still holding the cannonball, Han Zhen hurriedly reminded: "Throw it away!" ”

"You don't need to throw it, the Admiral said, this thing is not very powerful."

Nie Dong waved his hand indifferently, looking relaxed.

Han Zhen raised his eyebrows and quietly retreated a few steps.

According to the dosage of gunpowder in later generations, such a large one would be enough to kill both of them.

Finally, the lead burned to the end.

Burst!

It's like a loud fart.

Immediately afterward, puffs of thick black smoke rose and soon filled the air.

"Ahem."

Han Zhen coughed twice, and said in disbelief: "The firearms in the Western Army are also like this?" ”

Is this a fucking explosive or a smoke bomb?

The sound of the explosion is not as loud as a fart.

Then throwing away the cannon in his hand, Nie Dong replied: "It's about the same, but some of them are more powerful, they can blow up the clay pot and shoot out the thistle buried in the crockpot." ”

Han Zhen asked, "The thistle terrestris that is shot out may hurt people?" ”

Nie Dong sneered: "Everyone on the battlefield is wearing armor, let alone iron armor, even leather armor can't be shot through, how can it hurt people." ”

Outrageous!

Han Zhen now understands why Zeng Gongliang published the gunpowder formula in the book, and the emotion is useless.

The gunpowder of the Northern Song Dynasty is unreliable, and it seems that you still have to make black powder yourself.

"Go to the storehouse and get some charcoal, saltpeter, and brimstone."

Hearing Han Zhen's order, Nie Dong didn't say a word, turned around and left.

Soon, he returned with three sacks.

Seeing that Han Zhen didn't seem to give up, Nie Dong couldn't help but persuade: "County magistrate, firearms are a foreign way, and training soldiers is the right way." My Qingzhou army is full of food and salary, as long as it is properly trained, its combat power is unparalleled! ”

"I know, go ahead."

Han Zhen waved his hand.

Nie Dong knew that he hadn't listened, so he turned around and left helplessly.

The proportion of black powder, Han Zhen remembers is 74.64% potassium nitrate, 11.85% sulfur, and 13.51% charcoal.

First of all, the first step is to boil nitrate.

Whether it is saltpeter or sulfur, the higher its purity, the more powerful it will explode after being made into black powder.

Boiling nitrate is very simple, first grind the saltpeter into small pieces and put it in a pot to boil.

The ratio of water to saltpeter is about 1:0.7.

Wait until the water boils to about 50 degrees, skim off the foam, filter it through, and wait for the saltpeter to crystallize.

This is repeated three times to obtain a higher purity saltpeter.

This cauldron of saltpeter will at least be boiled for a while.

Taking advantage of this, Han Zhen picked up the copper still on the side and prepared to start purifying the sulfur.

This set of stills was specially ordered by a craftsman from a government-run workshop some time ago to distill high-grade liquor.

With a high concentration of liquor, combined with allicin, the mortality rate of soldiers will drop sharply in the future.

In addition, Han Zhen also customized a large number of traumatic gold sore medicines to two medical centers in the county, and at the same time invited doctors to come to the army every once in a while to teach simple trauma treatment.

Light the stove, place the still on the fire, and add the sulfur.

Han Zhen forgot whether it was 300 degrees or 400 degrees, and the sulfur would liquefy and boil, constantly producing a large amount of sulfur gas.

After the gas is condensed and dried, it is the purified sulfur.

These two steps are very critical, and the purity of saltpeter and sulfur is directly proportional to the power of the explosion.

(End of chapter)