Aztec Eternals

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The long wind blew across the Texcoco Lake, swept over the people on Tianhuo Island, and blew the long white feather in the boy's hand. Blue sky and white clouds, islands in the lake. The green smoke and mist, the black-clothed youth...everything is like a picture scroll.

Shulot sat upright on the grass, white paper was placed between his legs, a wooden board was placed underneath, and the quill above was light and dancing, writing strange symbols from time to time. Since the completion of the paper, his writing tools have been improved again: white paper, quill pen with blue ink, it is much more delicate than charcoal and wood.

Bertard quietly swept over the crowd, and the warriors would disperse their guard and wait patiently. Seeing the waiting female workers, the samurai chief thought for a moment, and his eyes suddenly lit up. Immediately, he waved his hand with a smile, motioned for the potter girl to come over, handed out the ink pot in his hand, and stepped back ten steps.

Taking the pot, Taliyah frowned and smiled. Then, she held the blue ink pot with her white hands and sat next to the boy with her legs folded.

Shilot first wrote KNO3 soil nitrate, C charcoal, S sulfur on the left side of the white paper, and then wrote N2 nitrogen gas, CO2 carbon dioxide on the right side. Then, he sighed sadly and wrote K? S? ...Why didn't you study hard back then? ...

"Will K be K2O? Will S be SO2? What exactly is the process of oxidation and reduction here..." Taliyah listened, but only heard His Highness's god-like murmur, she couldn't help but slightly Get up and get closer.

Shilot thought for a while, but decided to start from scratch and write the periodic table of elements first. He picked up the pen and dipped in the ink, and didn't pay attention to Talaia beside him, just sniffed the faint fragrance... Well, this ink smelled very comfortable.

Immediately, the teenager wrote an H at the beginning. After a while, he got stuck, and then he continued to write C, N, O, F, Ne, Na, Mg, Al, Si, P, S, Cl, ?, K, Ca, followed by... Forget it, let's save some life for future chemists.

Sherlot looked at his masterpiece and smiled with satisfaction and confidence. This will be an epoch-making contribution that will change the future of mankind in advance!

Beside him, Talaia opened her mouth slightly and stared at His Highness with ecstasy, fascinated by the confidence and publicity at that moment.

Imagining for a moment, the boy began to formally deduce the complete process of the combustion reaction of gunpowder. First of all, if there is 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, Shilote pondered slightly, and wrote S and C in turn under O2. There are S sulfur and C charcoal in gunpowder, but S sulfur is more active and should be burned first to generate SO2 or SO3. Then, when the temperature reaches three or four hundred degrees, the C charcoal can undergo an 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, um, it should be SO2 or SO3..." Taliyah opened her eyes Large, with slightly moving ears. She looked at the mysterious symbol, stared at the profile of His Highness, imagining the communication between God and the king.

While thinking seriously, Shirlot wrote down the equation.

"K2O+SO2→K2SO3... Then add O2 oxygen... Anyway, it should be K2SO4 after complete oxidation... Then what? Then what?" Talaia heard the words in Her Highness's words Annoyed, it seems that the communication between the gods is not smooth? She was also worried.

The boy was lost in thought again. He supported his forehead with his hand and thought for a long time. At this time, the combustion temperature should be very high, enough for the elemental C to carry out the oxidation reaction, then the hexavalent S in K2SO4 should be reduced by C. With sufficient C, S should be reduced to negative bivalence, exactly in combination with K.

After careful consideration, Shilot continued to write.

“K2SO4+2C→K2S+↑”

At this point, all the intermediate steps are roughly connected. The teenager threw himself into it and thought about it. First, the unstable KNO3 soil nitrate was decomposed, followed by the oxidation of S sulfur with a low ignition point. After the temperature continued to rise, it was the C oxidation with a high ignition point that released heat. The whole reaction produces a lot of gas and also releases a huge amount of heat. In combustion, SO2 is the early oxidation product, and in the best complete ratio, the final product is K2S!

There was no problem with logic, and Shirot smiled confidently again. He dipped his pen in ink and took a deep breath of the fragrance.

"2KNO3+3C+S=K2S+N2↑+↑"

This is the optimum ratio for the complete combustion reaction of black powder. The mass ratio of the reactants in the reaction formula is exactly the weight ratio of the three raw materials in the black powder!

Afterwards, the teenager focused on calculating the molar mass again. Nitrogen 14, oxygen 16, potassium... Potassium in KNO3 is slightly smaller than calcium, calcium 40, potassium should be 39, then 2KNO3 is 202, 3C is 52, and S is 32.

Therefore, according to the calculation results, the best proportion of black powder should be: soil salt 202, sulfur 32, charcoal 52, namely 74.6%, 11.9%, 13.5%. In the actual explosion, the charcoal is often not completely burned, so it should be slightly more, instead of sulfur, it becomes 75:10:15, that is, 15 parts of soil nitrate, 2 parts of sulfur, and 3 parts of charcoal!

Xiulote looked back at the formula of "one nitrate, two sulfur and three charcoal". At this time, he discovered that the "one" of the saltpeter should refer to 1 jin, and it was 16 taels of the old jin, and the "two" of the sulfur It is 2 taels, and the "three" of charcoal is 3 taels. Exactly in line with the calculated 15 servings, 2 servings, 3 servings.

"So it is!" Finally, the ratio of gunpowder was deduced, and a happy smile appeared on Shirot's face. Immediately, the boy threw away the pen and paper, and got up from the ground excitedly, but suddenly his upper shoulder hit something soft.

Hearing a soft cry, the potter girl raised her head and fell backwards, her soft long hair brushed across the boy's face, and a gust of breeze lifted up. At the moment of weightlessness, she stretched out her hands, hugged His Highness's arm in time, and pulled down with her whole body weight.

Sherlot tilted his head when he heard the sound, but saw Taliyah who was exclaiming. He was startled, and stopped his subconscious precautions. Immediately, he was pulled vigorously, his footing was unstable, his footsteps slipped, and his center of gravity quickly became unbalanced. In just two breaths, he was completely weightless, and he fell with the potter girl, and there was another soft whistle from under him.

Shirot leaned on it sideways, feeling the soft body, and his heartbeat suddenly accelerated. He turned his head, and in front of him was Talaia's bright eyes, beautiful face, and long loose hair, the potter girl's breath close at hand, and the indifferent body fragrance on the nose... The young man suddenly lost his mind.

Talaia opened her eyes wide, looked at His Highness's face, felt the boy's body, and slowly blushed. Then, she closed her eyes suddenly, like a waiting kapok, blooming with attractive colors.

Seeing this scene, the workshop was silent, and the warriors looked at each other. After a while, the female workers dared to coax. Everyone solemnly waited for the "God Revelation" 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 in the vicissitudes of life. He spoke in a low voice, and was about to direct everyone to retreat.

Shirot was sluggish for a moment, shook his head vigorously, and then struggled to get up from the ground. Then he pulled Talia from the ground too, patting the dust carefully on her body.

Afterwards, the boy took a few deep breaths before speaking calmly.

"15 parts of soil nitrate, 2 parts of sulfur, 3 parts of charcoal, remixed gunpowder per pot... No rumors!"