When it was time for communications late at night, Ning Zhiheng edited a telegram to report Zou Chengbin's arrest to headquarters, leaving the director to verify the information himself. As for what happened afterward, it was none of his business. His most important task now was to start eliminating the traitor.
Early the next morning, Ning Zhiheng took Yi Huaan out of the Huiying Hotel. After confirming that no one was following them, the two went their separate ways. Ning Zhiheng went to Taishan Road in the city and found an inconspicuous little hotel not far from the Buli Coffee Shop, where he booked a room.
At noon, Yi Hua'an arrived, carrying a large leather suitcase. After knocking on the door and entering the room, he carefully placed the suitcase on the table.
Ning Zhiheng carefully closed the door, then turned around and asked, "Is everything ready?"
Yi Hua'an nodded and said, "According to your list, everything is ready. It's just that yellow phosphorus is hard to get. I spent a long time looking around the two match factories before I found one of their warehouses. I bribed the guards with a lot of money and that's how I got these."
Ning Zhiheng went to the window first, reached out and pushed it open. It was the dead of winter, and the temperature inside the room was already low. The cold air from outside rushed in through the window, and the room suddenly became cold. In no time, the temperature inside the room was about the same as the outside temperature.
At this moment, Ning Zhiheng came to the leather suitcase, gently unfastened the leather buckle, lifted the lid, and took out all the items inside.
Several thick cotton cloths, two bottles of high-quality kerosene, and finally a small, flat leather suitcase about half a foot square.
Yi Hua'an quickly warned from the side, "Be careful!"
Ning Zhiheng examined the exquisite little leather suitcase carefully and asked, "How well is the seal on this suitcase?"
"I visited several shops before choosing this box. It's the right size and has a good seal, but it's impossible to completely isolate it from the air."
"That's for the best!"
Ning Zhiheng nodded, took out the small leather suitcase separately, placed it in front of him, unfastened the leather buckle and gently opened it. Inside was a tightly wrapped cotton cloth that was soaked with water. Gently unwrapping it, he could see a large piece of solid material that looked like yellow wax inside. This was yellow phosphorus.
Ning Zhiheng nodded slightly, then turned to Yi Hua'an and said, "Go and keep watch. I need to conduct some experiments."
Yi Hua'an agreed and left. Ning Zhiheng felt that the air temperature in the room was already very low, so he spread out a piece of cotton cloth, poured some kerosene on it, and slowly soaked it. He took a small piece from the yellow phosphorus, placed it on the cotton cloth, raised his hand to check the time, and slowly began to observe it.
Time flew by, and by evening, Ning Zhiheng had finished his experiment. The results confirmed that his hypothesis was entirely feasible. Seeing that the time he had agreed upon with Xu Yongchang was almost up, he tidied up the room, picked up his suitcase, and left the room.
He left the hotel, walked a distance, and arrived at the entrance of the Buli Coffee Shop. He turned to look at Yi Hua'an, who was on guard duty not far away. Yi Hua'an nodded to Ning Zhiheng, indicating that it was safe.
Ning Zhiheng then pushed open the door and asked the coffee shop manager for a private room. He ordered two cups of coffee and some tea and snacks, and waited quietly for Xu Yongchang to arrive.
Not long after, Xu Yongchang arrived quietly as promised. Ning Zhiheng gestured and greeted him at the door, and Xu Yongchang quickly followed Ning Zhiheng into the private room.
After closing the door, the two sat facing each other, and Ning Zhiheng asked in a low voice, "Has the situation changed?"
Xu Yongchang shook his head and said, "No change. Li Zhiqun has informed us to prepare. Tomorrow morning at eight o'clock, the Special Higher Police will arrange a vehicle to take us to the airport. At the same time, Fu Shengyuan and his wife will also return to Shanghai with us. They should board the plane around eight-thirty."
Ning Zhiheng calculated the time and felt there were no problems. He said in a deep voice, "I have decided to completely eliminate these traitors on this return trip. I will tamper with the plane they are on."
At this point, Ning Zhiheng placed the suitcase on the dining table, opened the lid, pointed to the items inside, and began to say, "The yellow wax-like stuff in this damp cloth is what we commonly call yellow phosphorus, and it is also the key to our operation."
Next, Ning Zhiheng explained the characteristics of yellow phosphorus in detail. Yellow phosphorus is a chemical substance used to make matches and is also a highly toxic chemical substance. Its biggest characteristic is that it has a low ignition point and can burn on its own at room temperature of 30 to 40 degrees Celsius.
Moreover, yellow phosphorus burns very completely, with the highest combustion temperature reaching over 1,000 degrees Celsius. Therefore, it can burn almost any material that comes into contact with the flame, turning it into fuel and causing the fire to grow larger and larger. It is especially dangerous in confined spaces, and the heat released is enough to kill all living organisms within its effective range.
The fumes produced by burning yellow phosphorus are also highly toxic and can be fatal if inhaled. When burning yellow phosphorus comes into contact with a person's body, it can penetrate the skin and then penetrate into the bone, making it impossible to extinguish until the person is burned to ashes.
Besides temperature, another prerequisite for yellow phosphorus to spontaneously combust is that it must be exposed to air and react with oxygen in the air in order to spontaneously combust.
Therefore, the conditions for storing white phosphorus must meet two requirements: first, the temperature must be below room temperature and must not exceed the ignition point of white phosphorus; second, it must be isolated from air, and it can even be stored in water.
Due to the urgency of the situation, Ning Zhiheng couldn't find the raw materials for explosives in time, so he finally thought of using yellow phosphorus as an incendiary agent. This was because the raw material was the easiest to obtain, and because yellow phosphorus was extremely powerful, once it started burning in the air, it was impossible to extinguish, and the destruction of the aircraft and the loss of life would be inevitable.
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