psychochemist

Chapter 516 Dust Explosion
A true warrior dares to face the challenges of life.

There was a thrilling explosion in the food warehouse just now.Yu Fan and Chen Jianyang narrowly escaped death again.

Chen Xingyang: "I didn't expect Zuo Cequan to hide a bomb in the food warehouse, and no one found it! It's terrible."

Yu Fan: "Actually, this bomb was not placed by Zuo Cequan in advance, but was made just now."

What?Yu Fan's words were astonishing, which made everyone feel puzzled.

Yu Fan asked Baitang's mother who had just escaped from the warehouse: "Just now in the house, did Zuo Cequan open the flour bag and throw flour into the air?"

Baitang's mother nodded and said, "Yes, I'm still very surprised. This cook threw flour into the air like crazy. It's unbelievable. But I took the opportunity to escape."

Baitang asked curiously: "Why would he do this? Use flour as a smoke bomb?"

Yu Fan waved his hand: "No, the flour particles suspended in the air are not smoke bombs at all, but out-and-out - explosives!"

Covering his mouth, Chen Xingyang said in disbelief: "Old Yu, are you kidding me? Flour is explosive? We eat flour every day. How did this flour become explosive?"

Yu Fan turned on the popular science mode and explained: "This is actually a common chemical phenomenon called dust explosion."

Chen Xingyang: "Dust explosion?"

Guo Na had a good idea and thought of it: "Dust explosion refers to the dust cloud formed by the mixture of combustible dust and air in a confined space. Elevated chemical reaction. Dust explosion chemical reaction is extremely fast and very destructive."

Yu Fan nodded, and continued: "Flour is composed of carbohydrates, which are combustibles. When the flour particles diffuse into the air and reach a certain concentration, they will deflagrate when they meet an open flame. The airflow produced by the explosion is also easy to cause deposition. The dust on the ground and warehouse shelves disperses to form a dust cloud, which triggers secondary or multiple explosions. In simple terms, only four conditions are required for a dust explosion. First, combustible dust is suspended in the air at an appropriate concentration. Second [-]. In a relatively confined space. [-]. There is sufficient air or oxidizer. [-]. There is a fire source or strong vibration and friction."

Chen Xingyang: "Tsk tsk tsk, isn't it a bit alarmist? According to this, if I make noodles at home, if the flour rises and encounters an open fire, it is possible to blow up the house?"

Guo Na: "Really. I read the news. The owner of a food stall raised too much flour in the shop, causing the flour to explode. There are also many flour factories that often experience violent explosions. , There are countless such news, and a search on the Internet will give you a lot.”

Chen Xingyang rested his chin and said thoughtfully: "This old fox is really cunning."

Guo Na: "Fortunately, Brother Yu responded in a timely manner. If it was [-] seconds later, you might also be buried in the flames."

Chen Frameyang lowered his head, thinking about something.

Yu Fan glanced at Chen Xingyang from the corner of his eye, this time Chen Xingyang was a little strange, he didn't thank Yu Fan, but was thinking about something calmly.Perhaps he was tired of being dragged down by this case, and he was already used to this feeling of going through life and death.

At this time, the sound of sirens came from a distance, indicating that the support troops had arrived.This also means that everything will be settled.

Suddenly, Baitang remembered something, she looked around and asked in doubt, "Where did Brother Zhang Zai go?"

It was only now that everyone realized that Zhang Zai slipped away while they were not paying attention.

Chen Xingyang: "I'll go, why did this bastard slip away? But I guess he won't run far, I have to catch him and interrogate him."

But Yu Fan said: "I don't think you need to waste time on Zhang Zai, he is not the person we are looking for, and has nothing to do with the person we are really looking for," Yu Fan adjusted his glasses, and said to himself He said, "What do Zuo Cequan's last words mean? The darkest part of the playground is exactly where the end point is found. The end point is the starting point." Yu Fan thought about Zuo Cequan's words.

Chen Xingyang seemed disapproving, and said: "Cut, don't pay attention to these things. I think he deliberately pretended to be a secret. He hated the police so much that he would rather commit suicide than cooperate with us. What value does it provide? No value!"

Yu Fan was still thinking.

"By the way," Chen Xingyang suddenly remembered something, "Old Yu, your company is also in the chemical industry. I haven't asked what products your company does?"

Yu Fan: "We manufacture metal processing aids, such as cutting fluids, anti-rust agents, and metal cleaners. By the way, why are you asking this?"

Chen Xingyang: "Oh, it's nothing, I just asked... Oh, by the way, let's explain the situation here with the colleagues who came to reinforce, and then we have other things to go back to do." Chen Xingyang changed He started a topic and avoided Yu Fan's question.

Unable to explain why, Yu Fan had a faint feeling that something was wrong.But the thing to do now is to handle the scene well.

……

After the handover of the affairs here, it was already evening. Chen Zhuangyang arranged for his colleagues to send the Baitang family back home. This time, thanks to the little girl named Baitang, although the final development of the matter was a bit shocking Things backfired, but this little girl still helped Yu Fan and the others with many clues.

Chen Xingyang drove the car and drove back with Yu Fan and Guo Na.

Along the way, the three of them didn't talk much. It may be that the past few days have made everyone very tired.Guo Na was in the back row, leaning on a chair and falling asleep.Yu Fan was looking at the retrograde scenery outside the window, while thinking about the little things that happened in the past two days.Why do they end up dead every time they come across someone with a clue?Is this just a coincidence?Yu Fan felt his head swell and gradually became sleepy.

Yu Fan wanted to close his eyes slightly to rest his mind, but as soon as he closed his eyes, a black figure in a tarpaulin suddenly appeared in front of him, and Yu Fan was so frightened that he lost sleepiness!
Yu Fan sat up straight with a whimper, this black shadow was exactly the one that appeared in Fan Xinflow mode recently.

Chen Xingyang next to him asked with concern: "Old Yu, what's wrong with you?"

Yu Fan blinked, but the black shadow did not appear again.Yu Fan: "No...it's nothing. I seemed to have a little hallucination just now. Maybe it's because I'm too tired these days. You should drive slowly. You haven't had a good rest these days. Safety comes first."

Chen frame Yang touched his nose, clenched the steering wheel with both hands, and said coolly: "Don't worry, I'm an old driver."

On the mountain in the distance, a man with a telescope was watching Yu Fan and his car go away. He was wearing a black cloak, and there was a pattern printed on the cloak—the electron layer map of element sulfur!
　Life is short, but if you spend your life humblely, it will be too long——Toluidine Red

　　
　
(End of this chapter)