The long wind blows by the edge of Texcoco Lake, blowing over the people on Tianhuo Island, and also blowing the long white feathers in the young man's hands. The blue sky and white clouds, the islands in the lake, the green mist, the young man in black... everything is like a picture scroll.
.
Shulot was sitting on the grass, with the white paper flat between his legs, a wooden board underneath, and the quill above it dancing lightly, writing strange symbols from time to time. Since the paper was made, his writing tools have been improved again.
: White paper, quill pen and blue ink are much more delicate than charcoal pen and wooden board.
Bertard swept over the crowd calmly, and the warriors relaxed their guard and waited patiently. When he saw the waiting female workers, the warrior commander thought for a moment, and his eyes suddenly lit up. Then, he smiled and waved to the potter girl.
He came over, handed over the ink pot in his hand, and took ten steps back.
Taking the clay pot, Talaya's eyebrows curved and a smile broke out. Then, she held the blue ink pot with her white hands and sat down next to the boy with her legs crossed.
Shurot first wrote KNO3 soil nitrate, C charcoal, S sulfur on the left side of the white paper, and then wrote N2 nitrogen, CO2 carbon dioxide on the right side. Then, he sighed sadly and wrote K?S?...
.Why didn’t you study hard back then?...
"Could K be K2O? Could S be SO2? What is the process of oxidation and reduction here..." Talaya listened carefully, but only heard His Highness's god-like murmur. She couldn't help but smile slightly.
Get up and get closer.
After thinking deeply for a moment, Shulot decided to start from scratch and write out the periodic table of elements first. He dipped his pen in the ink and didn't pay attention to Talaya beside him. He just sniffed the faint fragrance... Well,
This ink smells very pleasant.
Immediately, the boy started writing an H. After being stuck for a while, he continued to write C, N, O, F, Ne, Na, Mg, Al, Si, P, S, Cl,?, K, smoothly.
Ca, followed by...forget it, let's leave some way for future chemists to survive.
Shulot looked at his masterpiece and smiled with satisfaction and confidence. This will be an epoch-making contribution and change the future of mankind in advance!
Beside him, Talea opened her mouth slightly and stared at His Highness completely, her heart moved by the confidence and arrogance of that moment.
After thinking for a moment, the boy began to formally deduce the complete process of the gunpowder combustion reaction. First, if there are no C and S, KNO3 will be heated and decomposed to generate K2O potassium oxide N2 nitrogen and O2 oxygen. The balance should be like this:
“4KNO3 → 2K2O
2N2↑
5O2↑”
Next, Shulot thought for a moment and wrote S and C in order below O2. There are S sulfur and C charcoal in gunpowder, but S sulfur is more active and should be burned and reacted first to generate SO2 or SO3. Then, the temperature was raised to 3
At 400 degrees, C charcoal can undergo oxidation reaction and continue to release heat.
"Hey, K2O plus H2O is KOH, so it is strongly alkaline. Since K2O is strongly alkaline... it will react with acidic oxides first, well, it should be SO2 or SO3..." Talea opened her eyes
Big, her ears moved slightly. She looked at the mysterious symbols and stared at His Highness' profile, imagining the communication between God and the King.
Shulot thought carefully while writing down the equation.
"K2O
SO2 → K2SO3... Then add O2 oxygen... No matter what, after complete oxidation, it should be K2SO4... Then what? Then what?" Talea heard the distress in His Highness's words, and it seemed that
The communication with the gods was not smooth? She also became worried.
The young man fell into deep thought again. He supported his forehead with his hand and thought carefully for a long time. At this time, the burning temperature should be very high, enough for C elemental substance to carry out oxidation reaction. Then the hexavalent S in K2SO4 should be reduced by C. In C
Under sufficient conditions, S should be restored to negative bivalence, just in combination with K.
After careful consideration, Shulot continued writing.
"K2SO4
2C → K2S
2CO2↑”
At this point, all the intermediate steps have been roughly connected. The boy thought deeply about it. First, the unstable KNO3 soil nitrate is decomposed, and then the low ignition point S sulfur is oxidized. After the temperature continues to rise, the high ignition point C oxidation heat is released.
.The entire reaction will produce a large amount of gas and release a huge amount of heat. In combustion, SO2 is the early oxidation product, and in the optimal complete ratio, the final product is K2S!
There was no problem with the logic. Shulot smiled confidently again. He dipped his pen in the ink and took another deep breath of the fragrance.
"2KNO3
3C
S = K2S
N2↑
3CO2↑”
This is the best ratio for the complete combustion reaction of black gunpowder. The mass ratio of the reactants in the reaction formula is exactly the weight ratio of the three raw materials in black gunpowder!
Then, the boy once again concentrated on calculating the molar mass. In KNO3, there are 14 nitrogen, 16 oxygen, and potassium... Potassium is slightly smaller than calcium, calcium is 40, and potassium should be 39, so 2KNO3 is 202, 3C is 36, and S is 32.
Therefore, according to the calculation results, the optimal proportion of black powder should be: 202% saltpetre, 32% sulfur, 36% charcoal, that is, 74.6%, 11.9%, 13.5%. In actual explosions, charcoal often cannot burn completely, so it should
Slightly more, instead of sulfur, it becomes 75:10:15, which is 15 parts of soil saltpetre, 2 parts of sulfur, and 3 parts of charcoal!
Xiulote looked back at the formula "one saltpeter, two sulfur, three charcoal". Only then did he realize that the "one" in saltpeter should refer to 1 catty, and it was 16 taels of the old catty, while the "two" in sulfur
It is 2 taels, and the "three" of charcoal is 3 taels. It exactly matches the calculated 15 parts, 2 parts, and 3 parts.
"So that's it!" After finally deducing the ratio of gunpowder, a joyful smile appeared on Shulot's face. Immediately, the boy threw away the paper and pen, stood up from the ground excitedly, and suddenly hit something soft on his upper shoulder.
object.
This chapter is not finished yet, please click on the next page to continue reading the exciting content! Just hearing a soft cry, the potter girl threw her head back and fell backwards. Her soft long hair brushed the young man's face, and a breeze blew up. In the moment of weightlessness,
, she stretched out her hands, hugged His Highness's arm in time, and pulled him down with her whole body weight.
When Shulot heard the sound and tilted his head, he saw Talea exclaiming. He was startled and stopped his subconscious defensive movements. Immediately, he was pulled hard and his footing became unstable. His steps slipped and his center of gravity quickly lost balance.
In just two breaths, he lost all weight, fell together with the potter girl, and heard another soft cry from underneath him.
Shulot leaned sideways on it, feeling the soft body, and his heartbeat suddenly accelerated. He turned his head, and in front of him was Talea's bright eyes, beautiful face, and long hair, and in his ears was the potter girl close at hand.
Breathing, there was a light lingering body fragrance on the tip of the nose... The young man suddenly lost his mind.
Talea opened her eyes wide, looked at His Highness's face, felt the young man's body, and slowly blushed. Then, she suddenly closed her eyes, like a waiting kapok, blooming with alluring colors.
Seeing this scene, there was silence in the workshop, and the warriors looked at each other. After a while, the female workers boldly started to cheer. Everyone had been waiting for the "divine revelation" solemnly for a long time, but it was such an exciting development. Not far away
, the calmness on Bertard's face disappeared, and he smiled happily despite the vicissitudes of life. He whispered, and was about to instruct everyone to retreat.
Shulot was stunned for a moment, shook his head vigorously, and got up from the ground with difficulty. Then, he pulled Talaya up from the ground, and carefully patted the dust on her body.
Then, the young man took a few deep breaths before speaking calmly.
"Each clay pot contains 15 parts of saltpeter, 2 parts of sulfur, and 3 parts of charcoal, and the gunpowder is re-mixed... Do not spread the word!"