I am the cook, but I am Li Er's son-in-law

"As for the purple flame." Yin Xuan finished explaining the first one, and then opened his mouth to explain the second one, "It's just a very simple knowledge point."

"Although our common flames are all yellow, like phosphorous fire, most of the flames we see are blue."

"This has nothing to do with magical powers and spells, it has to do with the nature of the object. When some special objects burn, the color of the flame will change slightly."

"The purple flame should be potassium."

After speaking, Yin Xuan paused.

"It's not easy to extract this thing, and she's lucky."

Extracting potassium as a simple substance is a very troublesome thing-this is not a matter of one coincidence, but several coincidences.

First, plant ash must be burned, and then plant ash water, or potassium carbonate solution with a lot of impurities, is purified by recrystallization to obtain potassium carbonate.

Hydrochloric acid has to be produced and reacted with potassium carbonate to obtain potassium chloride.

Potassium chloride reacts with sodium at high temperature to obtain potassium metal.

Hmm. If you want to complete this step, you have to extract the "sodium" in advance. If Yuan has this ability, he won't go to great lengths to extract potassium.

Purple flames, how can there be a thrilling explosion?

Therefore, Yin Xuan reckoned that this Yuan family must have been lucky. When cooking the golden juice, some potassium was produced by mistake.The world is so wonderful.

After squatting in the laboratory for half a year, I couldn't get a result, but in the wonder of nature, I got the result.

Although Yin Xuan's explanation was not very detailed, it was done step by step.

But in their ears, it was "first this, then that, then this and that, and then that and that, that's how Yuan made it."

They can understand what a single word means, but when they are combined together, they become a bible that they cannot understand.

Zhou Xiaosan frowned, his face turned into a bitter gourd.

As the emperor, Li Shimin, with a thick face and a dark heart, pretended to be thoughtful, and nodded: "I see."

Yin Xuan didn't save him any face, and said angrily: "Do you understand?"

Li Shimin blushed and smiled embarrassingly.

Zhou Xiaosan sighed: "I didn't understand, it seems that a certain person is destined to have no chance to be a scholar."

While shaking his head, he stood up: "However, I have written down what the shopkeeper said, and I will go to investigate the house of the temptress Yuan."

As he spoke, he left in a hurry without even eating a bite of food.

The county government gave them three days, and this was already the second day.

Huaizhenfang and Yankangfang are far apart, if he eats here again, maybe there will be a curfew when he arrives at Yankangfang.

Li Shimin felt a little better for some reason.

Unlike Zhou Xiaosan, he didn't fully believe Yin Xuan's words.Anyway, Zhou Xiaosan has already gone to investigate, and it won't be too late to believe it when the result is confirmed to be true.

"I didn't expect to have so much knowledge in pretending to be a ghost." Li Shimin sighed, and while sighing, he sat obediently and let Yin Lulu draw a turtle on his face.

Yin Lulu raised her hand and thumped Li Shimin's shoulder: "Don't move, the painting is crooked!"

Li Shimin shut his mouth immediately.

Yin Xuan did not explain that this is chemistry, this is physics, and this is something that can change the world.

The current Datang cannot possess these things.

It's not that those so-called "feudal and vulgar" thoughts will make them not accept science.But the soil of Datang is not suitable for science to take root and sprout.

The development of science requires a lot of resources.

But Datang. The current limited resources are not enough to fill the stomachs of the people all over the world.To develop resources is the same as Qin Shihuang building the Great Wall and Sui Yangdi building the Beijing-Hangzhou Canal. Although it is a good thing that will benefit the future, it will indeed cause people to live in poverty, and even lead to the collapse of a dynasty.

Food is the biggest pain in the hearts of people who work hard on this land.

Seeing that Yin Xuan was not going to continue talking on this topic.

Li Shimin didn't ask much.

Although he is somewhat interested in this kind of "heresy" theory, Yin Xuan is willing to say it, and he just listens to it as a novel to relieve boredom. If Yin Xuan is not willing to say it, he will not force it.

To him, such things are of little importance.

When a big fire burned the sky and the clouds were filled with red clouds, Li Shimin took Li Lizhi back home—both father and daughter's faces were painted with turtles and bastards.

Back in the imperial city, Li Shimin had just washed his face and was about to continue with his official duties.

The eunuch knocked on the door and entered, and reported: "Your Majesty, Chang'an County Magistrate Yang Zuan, please see him. He said that he has found out the case of Yuan's demon rebellion, and he is here to inform His Majesty."

Li Shimin raised his eyebrows and waved: "Call him in."

I was a little surprised in my heart, and couldn't help sighing, that bad guy named Zhou Xiaosan really handled things quickly.

Yang Zuan walked in respectfully and looked up at His Majesty.

Long time no see, His Majesty is still so wise and mighty.

wait
What is that thing next to the ear on the left face, it looks like a turtle?No no no, there is no pattern on the back, is that a bastard?
wrong!After taking a closer look, Yang Zuan confirmed that it was a turtle and a bastard.

Who is so bold, dare to draw such things on His Majesty's face?
Yang Zuan quickly looked back, presented the memorial in his hand to the eunuch, and then said softly: "Your Majesty, I have thoroughly investigated this matter to determine exactly what kind of means the seductress Yuan used to deceive the public."

"His behavior and behavior are all written in the memorial."

Li Shimin took it, but didn't open it, just pretended to smile: "The temptress used sodium and potassium to create a feeling of supernatural powers?"

Yang Zuan was taken aback: "How did Your Majesty know?"

Halfway through the speech, he abruptly swallowed the next words, and praised them almost obsequiously: "Your Majesty, God knows, a temptress can't escape your eyes."

"It's because I'm stupid that I only found out about this matter at this time."

Li Shimin laughed.

How did he know?
When Yin Xuan was explaining to Zhou Xiaosan, he was beside him.

But this Yin Xuan is really a capable person, and he solved this case that was helpless to others with just a few words, and he learned a lot of things.

The love of talents in Li Shimin's heart became more intense.

He decided that he would go to Tongfu Restaurant more often in the future, and use his personal charm to influence him, so that he would be used by Datang sooner or later.

If he inadvertently exposed his identity as emperor in front of him in the future, he would definitely be grateful.

Li Shimin shook his head, expelled these fantasies from his head, and squinted at Yang Zuan: "If you have this ability, you will solve this case the first time."

"Tell me, who is helping you behind your back."