Anyway, the two colors are different and they will be tested on it.

It sounds similar, let's try it first.

"Yes, this is it. Can you refine it, Taoist priest?" Qin Yuan asked in a muffled voice.

Baopuzi smiled slightly and said, "This is the main ingredient of our Taoist Three Immortal Pills. It is widely used in other elixirs and was known to alchemists as early as the pre-Qin period."

"Legend has it that this substance was included in the elixir of immortality taken by Qin Shi Huang."

Hearing this.

Qin Yuan couldn't help but break out in a cold sweat.

It's not easy for the First Emperor to live this long after taking so many random pills...

Baopuzi said with some pride: "If you put it in a porcelain basin, it won't corrode. If you light a fire, it will melt. If you turn off the fire and wait for it to solidify, as long as you are careful, it won't melt or burn your skin."

"I have been refining this Green Gong for who knows how many years. It is not difficult."

"very good!"

Qin Yuan nodded, thought for a moment, and reorganized his thoughts.

Although he couldn't make industrially synthesized ammonia.

He doesn't know how to make ammonia using the traditional methods mentioned in online articles.

But he understands chemistry!

First, clarify the purpose of the experiment - to prepare nitrogen fertilizer.

Secondly, design the experimental idea - find a nitrogen-containing compound, and then find a way to extract the nitrogen.

Regardless of whether this nitrogen turns into nitric acid or ammonia, it will become an electrolyte after acid-base neutralization and can be absorbed by the roots of plants.

So, what contains nitrogen?

coal!

So how do you extract nitrogen and separate out the unwanted stuff?

burn!

He remembered clearly that coal burned in the air, mainly producing carbon dioxide and sulfur dioxide.

There is too little ammonia, and even if it turns into nitrogen oxides, it seems difficult to separate it from the two big brothers above.

Then isolate the air and burn it!

Since there is no air, according to the law of conservation of mass, there is no oxygen, and no carbon dioxide and sulfur dioxide.

Then we can definitely separate!

You should be able to get ammonia.

Then you have to find an acidic solution to absorb it.

Acidic solution - sulfuric acid/hydrochloric acid!

For hydrochloric acid, it has to be processed with sodium chloride first. He remembered that it needs to react with silver ions to become hydrochloric acid.

Dissolving silver is such a hassle!

That leaves only sulfuric acid.

Where does sulfuric acid come from?

Ore - ferrous sulfate/ferric sulfate, you know these two contain sulfuric acid.

Very good, it’s settled.

Go to the next step and analyze the experimental principle——

Write a chemical equation first.

Potassium, sodium, ammonia, nitric acid solution.

Whether it is ferrous hydroxide or ferric hydroxide, it is a precipitate.

The system has been reduced and the reaction can proceed.

Reasonable!

Ammonium sulfate has been produced.

——I got ammonia fertilizer!

From the perspective of acidity and alkalinity, ammonia water is alkaline, while ferrous sulfate or ferric sulfate is definitely weakly acidic.

Acid-base neutralization is no problem.

uh-huh.

It's settled.

The idea is clear now.

Let me prove it again.

Whether you look at it horizontally, vertically, left, right, up or down, the idea is flawless, impeccable and seamless.

If this still can't be done, it's definitely not my problem.

Qin Yuan was ready to start giving orders.