Long Yingxiao carefully recalled the interlocking and precise steps, making sure that no mistakes could be made, because once a mistake was made, the explosion was likely to occur at that moment.
Just as he was told, Long Yingxiao began to purify dilute sulfuric acid while heating the mixture of toluene, concentrated sulfuric acid and concentrated nitric acid.
Is there anything else that can be used? Long Yingxiao thought to himself as he was making T·N·T detonating tubes in his hands.
"By the way, there is also black gunpowder, this is the simplest one. Come on, let's start." As soon as he finished making the thunder tube, Long Yingxiao thought of the black gunpowder production method passed down by the Chinese ancestors.
"Sulfide, dinitrate, and charcoal, although it is not particularly accurate, it is actually almost the same. This is a chemical instrument room, and some things can be made instead." While doing it, Long Yingxiao thought in his mind.
Recalling the knowledge about black gunpowder.
The oxygen released by the decomposition of potassium nitrate will cause the charcoal and sulfur to burn violently, instantly producing a large amount of heat and nitrogen, carbon dioxide and other gases. Due to the rapid expansion of the volume, the pressure suddenly increases, and an explosion occurs. About every four grams
When the black gunpowder is ignited and burned, it can produce 280 liters of gas, and the volume can expand nearly ten thousand times. In a limited space, the gas expands rapidly when heated and causes an explosion. During the explosion, particles of the solid product are dispersed in the gas
During the explosion, a large amount of smoke is produced. Because potassium sulfide solid is produced during the explosion, and a lot of thick smoke often emerges at the same time, it is named black gunpowder. Moreover, the instantaneous deflagration temperature of black gunpowder can reach more than 1000°C, and it is extremely destructive.
In addition, it is also very sensitive and easy to burn, and a small spark can ignite it.
However, according to the characteristics of black gunpowder, Long Yingxiao would not use it unless absolutely necessary. Because the explosion of black gunpowder is loud and produces a lot of thick smoke, once used, it is like standing on the evil side.
In front of the Dragon King, he said to him: Have you seen me? That way no one will know where Long Yingxiao is.
Regarding the embarrassing situation he was in now, Long Yingxiao thought and acted.
On the other side, the black dragon evil spirits in each teaching building successfully controlled the teachers and students in each classroom and office.
Class 16, Senior High School.
The classroom seemed to be the same as usual, everyone was sitting upright in their seats.
But, it's still a little different.
Next to the podium in the classroom and in front of the back wall, there is a black dragon evil warrior wearing dark clothes standing. The expressions of every student are also very exciting. Most of them have visible fear on their faces, and their bodies seem to be still.
They were trembling; only a handful of people looked unchanged, not knowing whether they had plans or suppressed fear.
And Mo Ziling, who is now sitting in the middle of the third row, is still as beautiful as ever, but her face is no longer as happy as usual. Her brows are furrowed, and her eyes are full of thoughts and worries.
What should I do? What should I do now? Mo Ziling was at a loss.
Most of my abilities are for healing, so they are of little use in this situation. Although there should be a few people in the class who also have unusual abilities.
We have strength, but we can't communicate with them now. And even if we can knock down these two people in the class, there should be people in black clothes stationed in other classes. What should I, and we, do?
Mo Ziling analyzed in her heart, but she still had no way to change the current situation.
Glancing back slightly at Long Yingxiao's empty seat, Mo Ziling's eyes showed a look of deep worry.
Where are you? Do you also have some abilities? Don't get caught. Although he knew it was impossible, Mo Ziling still hoped that Long Yingxiao, who was not in the class, could come back to help them get out of trouble.
How is that possible? It would be difficult for him not to be caught. Mo Ziling told himself again in his heart.
But what she didn't expect was that Long Yingxiao would really come back.
But not yet.
And now Long Yingxiao is ready. He doesn't plan to continue to wait for the Black Dragon Evil Warriors to pursue them, and then repel them one by one. Because this way he may never be able to escape from the school, so now he decides to take the initiative and rely on
Use your own ability to escape from the school and seek external help.
Long Yingxiao opened the window adjacent to the corridor on the north side of the chemical instrument room, and just as he was about to jump into the corridor, he suddenly felt the breath of the black dragon evil spirit again.
The black dragon evil warrior at the bodyguard level, is he patrolling? Long Yingxiao thought to himself.
Hey! Why didn't I expect that Long Yingxiao suddenly patted his head in annoyance, and then a sneer appeared on the corner of his mouth.
Ta,ta,ta...
The footsteps of the Black Dragon Evil Master in the corridor were still so soft and unnoticeable, but Long Yingxiao would never misjudge his position with his ears and grasp of his breath. So, the next second, he jumped from the window
come out.
"Hammer!" Long Yingxiao shouted coldly in his heart.
In the blink of an eye, the giant hammer that was simulated when dealing with the guards on the fifth floor appeared in Long Yingxiao's hand again.
Long Yingxiao fell from the sky, and hit the back of the neck of the black dragon evil warrior of the group guard level with a hammer. Long Yingxiao's own strength plus the impact of gravity made the group guard's eyes suddenly go dark, and he fell straight down.
Towards the front.
After using the blast control, Long Yingxiao fell to the ground and supported the team guard whose body was about to be smashed into the corridor.
Long Yingxiao did not continue to stand there stupidly. He directly grabbed the black dragon evil warrior and quickly returned to the chemical instrument room.
Quickly taking off the clothes of this group of guards, Long Yingxiao had the same idea as Shao Tianhan. Although Shao Tianhan's strategy was aborted before it was implemented, he still made the entire fifth-level Black Dragon Evil Warriors sacrifice.
Despite the price, no one knows what step Long Yingxiao will be able to achieve this time.
Everything is unknown, just like Long Yingxiao still doesn't know the purpose of the Black Dragon Evil Warriors' trip.
Putting on the pitch-black black dragon mask, Long Yingxiao's eyes became a little colder. Taking a deep breath, Long Yingxiao's mental power spread out in a fan shape. Feeling that there was no aura of the black dragon evil warrior outside, he sorted out
He took off his clothes and quickly jumped into the corridor.
The bodyguard Long Yingxiao knocked down had the same figure as him
The clothes were similar, and the clothes fit well. In addition, Long Yingxiao deliberately imitated the walking posture of this team guard. Most people would definitely not be able to tell the difference between the team guard just now and the "team guard" now.
Slowly walking towards the staircase on the east side of the fourth floor, Long Yingxiao's eyes were cold, and his face under the mask was unusually calm. He walked calmly, as if he was carrying out the original patrol mission of this group of guards.
Time passed by minute by minute, and Long Yingxiao had already reached the east stairwell of the fourth floor.
And here, there are also two black dragon evil warriors standing guard.
Long Yingxiao knew that doing more was better than doing less, so he didn't say anything, didn't make any unnecessary movements, and just planned to quietly walk past them under their noses.
However, Long Yingxiao still didn't understand the rules of the Black Dragon Evil Order well enough.
Just when Long Yingxiao walked in front of the black dragon evil warrior on the west side, Long Yingxiao was kicked out by him with a "bang".
"Buzz..." Long Yingxiao's body hit the handrail of the stairs next to him hard, making a crisp buzzing sound.
Not good! Long Yingxiao thought to himself, I still underestimated the hierarchy within the Black Dragon Evil Order, the comprehensive militarized management system. When subordinates see their superiors, they must salute, otherwise they will be severely punished. No, if this continues, if your identity
It would be troublesome if it was exposed.
Long Yingxiao's eyes were calm, without any sign of anger. He looked at the three bloody lines on the shoulders of the black dragon evil warrior in front of him that seemed to be shining at the moment. He stood up straight and imitated the group of black dragons when he was besieged before.
The evil warrior saluted to the evil dragon emperor's guards, his right hand formed a fist and struck heavily on his left chest.
"This subordinate is guilty." Long Yingxiao's voice was obviously a little high-pitched.
Saying this loudly was not just to get rid of the trouble in front of him, Long Yingxiao also wanted to get rid of those potential dangers. The sound he made when he hit the handrail of the stairs just now was not insignificant.
The soldiers came to surround him again, which would not be fun.
However, Long Yingxiao didn't know that a situation like the one that besieged him before would never happen again. In other words, it shouldn't have happened in the first place.
Sure enough, after Long Yingxiao's words, the anger and doubts in the eyes of the black dragon evil warrior in front of him were obviously reduced a lot.
"snort!"
The black dragon evil warrior in front of him snorted coldly, obviously not satisfied that he just kicked Long Yingxiao.
Seeing that the black dragon evil warrior didn't say anything, and there was no doubt in his eyes, Long Yingxiao secretly said that he was in danger, got up and went downstairs.
"stop!"
Suddenly, another guard who had been standing on the east side and had not done anything just now moved sideways in front of Long Yingxiao.
"What are your orders, sir?"
Long Yingxiao wondered, was this going to be seen through? But he still held on to the last bit of luck, lowered his head and asked this question.
"The Black Dragon Evil Warriors have always been very disciplined, and subordinates will never act disrespectfully towards their superiors. You are not a Black Dragon Evil Warrior! Catch him!" This man indeed saw through his true identity as Long Yingxiao thought.
, the last sentence is to shout loudly, asking his companions to help.