Chapter 1754

"Of course." Xu Haoran unloaded his backpack and put it in front of Li Hang.

Li Hang opened his backpack, took out a bottle of concentrated hydrochloric acid and concentrated nitric acid from it, carefully opened the cap of the bottle, and poured both hydrochloric acid into a huge container at the same time.

When concentrated hydrochloric acid and concentrated nitric acid were mixed, the pungent smell let everyone cover their nose and mouth.

"Are you making aqua regia?"

In the crowd, someone could not help shouting.

Li Hang nodded to the man, and then said, "the aqua regia volatilizes very fast. We have to reach the place where the sewer outlet is sealed in half an hour."

With that, Li Hang was about to grab the glass beaker with his bare hands, which made everyone gasp.

Want to know, aqua regia has strong corrosivity, is one of the few can dissolve the inert metal material.

If a person's skin is only slightly stained with it, it is a disaster.

But Li Hang, without any protection, picked up the liquid medicine with his bare hands. It was incredible, even bold!

At this moment, those who choose to stay and move forward and backward with Li Hang suddenly feel relieved. They feel that they are with the right person.

Under the gaze of a group of people, Li Hang takes the lead in entering the sewer. Gu Yanxi and Xu Haoran follow Li Hang's steps and get in at the same time.

Behind that group of people look at each other, but also did not hesitate to follow the footsteps of the three, into the sewer.

The aperture of this sewer is very large, and an adult can pass through it without any difficulty.

Although there is always a disgusting stench around us, we don't care about these crimes at all compared with being able to survive.

Li hangzhao's impression of the school's underground pipeline structure in his mind, with a kind of person in the curved pipeline seven turns eight circles, soon, he took a crowd to an iron fence.

"Here, at last! Excellent! We can finally get out of this place. "

After a crowd cheered, Li Hang remained unchanged, he will be filled with corrosive liquid carefully bit by bit on the iron fence post.

Everyone's eyes are tightly fixed on the place where aqua regia and the fence contact. It's just the moment when the liquid falls up. Although it also has a very strong corrosion effect, the corrosion effect is not very obvious.

When Li Hang ran out of the only cup of aqua regia in his hand, the thick steel bar of the fence was only slightly thinner, and it was not fused.

Seeing this, all the people behind them were worried, and their emotions were a little excited.

"What's the matter? Is there any mistake! How to prepare such a small amount of liquid medicine, quickly add more! There is not enough aqua regia! "

"No, I've run out of medicine." Xu Haoran said in a bad mood.

As soon as the words came out, people could not help being impatient. Immediately, someone roared out of control: "what are you doing? Don't you have backpacks? Why don't you take more concentrated hydrochloric acid and nitric acid? You are going to kill us

Turning his hands into clouds and covering them with rain, Xu Haoran understood these people. He was selfish and had only himself in his head.

Xu Haoran jumped up on the spot, pointed to the group and yelled: "who the hell is running around with his schoolbag full of hydrochloric acid and nitric acid? You don't have to wait for the zombies to bite you to death, and you'll be completely corroded by the leaking liquid!"