Datang: I was exposed by Princess Changle

It is to let them remember and be more careful.

Lin Xuan took out a piece of pork.

Everyone stood up.

Shi Qu's eyes were straightened.

What is Professor Lin doing?

I saw Lin Xuan carefully sucked out several drops of concentrated sulfuric acid with a dropper.

Then, it dripped directly on the pork.

Chi chi chi sound suddenly sounded.

At this moment, everyone's eyes are staring straight.

They saw that the pork was corroded into a black pothole!

It stinks!

hiss!

Even Cui Hao's face changed, and he quickly backed away in fear.

What the fuck? !

Is this a god horse thing? !

Lin Xuan then said slowly: "If you really meet."

"Never rinse with water!"

"Doing so will only increase your burnt area. You must first dry it with a cotton cloth and then rinse with water."

"You must keep this in mind!"

All in all, but there will always be people who suffer.

"Teacher, what's the use of this thing?" Shi Qu couldn't help asking.

"Mom! Such a scary thing, what do we learn to do?"

"Used to kill people?"

Other students talked a lot.

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Chapter 285 Laughing often, luck comes naturally!

Lin Xuan shook his head when he heard the words, and slowly explained: "Sulfuric acid is very useful!"

"It's the foundation of the chemical industry."

"Acid in three acids and two bases!"

Lin Xuan thought for a moment, and then said: "Sulfuric acid can be used first in the metallurgical industry and metal processing."

"Especially the production process of non-ferrous metals requires the use of sulfuric acid."

"The extraction of certain precious metals also requires sulfuric acid to dissolve other metals that are included."

"Including the high-concentration explosives to be made later, sulfuric acid is also essential."

"Even improved soil! Sulfuric acid can be used to improve calcareous soil with a high pH value! So that saline-alkali land can also grow crops."

"Explosives?"

Cui Hao and a group of students all showed surprise when they heard the words.

Be nice!

This is something that His Majesty expressly prohibits from teaching.

Lin Xuan spread his hands and said lightly: "Students, don't worry. It is not so easy to develop this thing."

"Which one of you can use sulfuric acid to produce high-concentration explosives, I will guarantee you the title of marquis and prime minister!"

"But it depends on whether you have the ability!"

Bullshit?

He took a mouthful of dynamite.

Do you still want to get it out?

When Nobel ordered the explosives, he did not know how many people were killed.

Only Cui Hao and the others can figure it out?

Lin Xuan wouldn't believe it even if he was beaten to death!

There are actually many effects of sulfuric acid, and Lin Xuan just mentioned these.

He plans to talk to them about how to make batteries out of sulfuric acid tomorrow.

This is the point of urgency right now.

Get out the batteries, and then get out the diesel generators.

And hydroelectric power!

Of course, this is Lin Xuan's current idea, and it has not reached this stage in a short time.

After class.

The students all started to pack their things and left one after another.

-

In private, Li Shimin is actually a very laughable person.

Especially when getting along with Lin Xuan.

According to Lin Xuan, one has to stay happy.

Only in this way can we live longer.