While Li Di was tossing his cotton wool, the chemical team designed and built a large courtyard on the banks of Wenlan, far from the buildings and residential areas.

The open space within 200 meters in diameter with the courtyard as the center is cleared of grass, and the ground is repeatedly crushed with loess, lime, and fine sand, and even the stones are all picked out, and the road is paved with bricks. Two barbed wire fences were erected around it, on which were hung pieces of black skulls painted with hideous hideous colors and large wooden planks with fireproof markings.

This is the ZHA Pharmaceutical Factory of the Chemical Group. In order to implement fire prevention and collision prevention, the construction team has made great efforts to use cement and brick structures, and the roof does not use wooden beams and columns, but all brick arch structures. The whole house is free of iron, wood, not even stone, to prevent any sparks and burning.

According to the advice of several ZHA medicine enthusiasts, the floor of the production workshop was not paved with bricks, but a layer of river sand was used to absorb any acids, bases and medicines that might fall.

The structure of the house is also very special, the middle production workshop not only opens the windows in the north and south to facilitate ventilation, but also opens the door from east to west, and next to the door is a deep trench with fine sand. This thing is an escape ditch, which can be used to escape in case of some uncontrollable chemical reaction - provided that everyone reacts quickly enough and their legs and feet are flexible enough.

These two escape ditches brought a dignified atmosphere to the chemical team. Just as many people in the mechanical group dream of building guns, there are few people who are engaged in chemistry who do not yearn for zha medicine. Many people have secretly made all kinds of ZHA drugs in the laboratory, but in this humble environment, how sure are they that the ZHA drug maniacs in the pride of the chemistry group are dumb.

A group of people sat in the middle of the barbed wire fence where the skulls were hung, discussing the direction of the zha medicine.

"You know what we're going to do?" Ji Si retreated and looked at the group of people in front of him.

"We have been waiting for this day for months."

"Everyone must be mentally prepared to die and be crippled!" Ji Siwei said viciously, "Now it's not a trick to mess with the black fire and add some batter." ”

"You crow's mouth!" Ji Siwei was smashed into a pile of mud clods and slipped to the side.

In addition to the people of the chemical group, the people of the mechanical group, and Li Di, who had suffered a tragic failure of nitrocellulose, also participated in the meeting -- he was unwilling to fail his nitrocellulose group.

"I don't understand, weishenme nitrocellulose just can't do it!" He was so annoyed that he thought it was something that had been caught.

"Chemistry is a very delicate job, which is so simple." "Your process is problematic, and you lack some of the most basic equipment. ”

"If we have all the equipment, nitrocellulose is a small thing." Ye Yuming said. He was a minor civil servant, but he studied chemistry and had a good understanding of mining and blasting.

"Well, if you can build a bigger centrifuge." Ji Sihui thought that everyone knew about this, but the question was where did this thing come from except for a small centrifuge in the laboratory.

Without a centrifuge, it is difficult for nitrocellulose to completely remove free acid from cotton fibers. In practice, nitrocellulose can become extremely unstable, as the Austrian army suffered from in the 19th century.

"We have to help with the industry." Xu Yingjie said that he is a person who is very obsessed with chemical products, and he is particularly fond of preparing various chemical agents, and belongs to the kind of experimental maniac who loves to do it very much.

"It's difficult," Wang Luobin shook his head, "our prime motive is not good yet." ”

"How?" Li Yunxing made a suggestion, and he was also recently transferred from the military group to the artillery group.

It is not difficult to have nitric acid and glycerin in hand, and there is also a Fengcheng wheel cold storage that can provide a steady stream of ice cubes to cool down, and it should be relatively safe to manufacture.

"I have a recipe." Ye Yuming was full of interest, "I did it myself in the laboratory-"

Everyone gasped, this shijie is still really a bold character. **Although it is known for its simplicity of manufacturing, it was often used by all kinds of terrorists and revolutionaries in the early 19~20th century, but more martyrs died in the manufacturing process than the police.

Ye Yuming's recipe is:

(1) Add *mL distilled water to *mL beaker;

(2) Prepare a large amount of ice salt mixture and place it in the sink.

(3) Put the *mL beaker into the water sink, inject *mL concentrated nitric acid, and cool to below *°C.

(4) Slowly add *mL concentrated sulfuric acid, mix evenly, and cool the mixture to *degrees.

(5) Slowly add glycerin with a dropper, about one drop per second, and pay close attention to the temperature to control it below * degree; Stop until there is a clear glycerol layer on the surface of the mixed acid solution (about glycerol * mL is added).

(6) Stir slowly for about a minute, and always keep it at a low temperature.

(7) Inject the mixture into the beaker in step 1, and the first will precipitate to the bottom of the cup.

(8) Detect with litmus test paper until it is not acidic.

If sodium carbonate is available, sodium carbonate can also be added to enhance the stability of **.

"I'm willing to give it a try," Ye Yuming was very sure, "I've done it once or twice, and I'm more experienced." These things are not rare, and the equipment is also available. Large-scale manufacturing where feasible. ”

"You're going to be blown up in the sky with this method." Xu Yingjie shook his head again and again, "The glycerin used in the laboratory is analytically pure. The glycerin we can make now can only be saponification, which contains saturated fatty acid salts, which will first react with mixed acid to release heat, and you may not be able to curb the ice salt mixture in time. Zuihou is - boom! ”

"Well, I didn't think of that question."

Xu Yingjie said: "I think the development direction of chemical industry from high to low is: 1. Nitrocellulose, gun power multiplier, other firearms can not do." 2. Synthetic ammonia, this can be done as long as our synthetic ammonia plant is completed. 3. Picric acid, impact resistance, can be emitted with nitrocellulose powerful zha medicine. **It's a waste firewood, it can only be loaded with a zha medicine bag, a grenade or something, and the power is not significantly better than picric acid, and the stability is too poor. ”

"There is nothing wrong with synthetic ammonia, the factory can be successful as soon as it falls, but it is too difficult to taste picric acid." Ji Siwei categorically denied, "The process of phenol production may be possible in 10 years." Just 13 atmospheres is no difference. ”

"Phenol can be refined from coal tar, but it doesn't have to be benzene. Phenol is originally a product of coal coking. ”

"It's not very efficient. If we must make picric acid, our coal coking plant can produce phenol as soon as it is put into operation. If the production is not low, it will be enough then. The problem is that the military group can't wait now. Ji Siwei spread his hands helplessly.

"Then there's only Black Fire Yao." Xu Yingjie said, "If someone is not afraid of death, they can also try it." ”

In Zuihou's opinion, whether it is ** or picric acid, it has to wait for the chemical plant to be put into production. At the moment, it is certain that it will be possible to make it or the black fire yao, and they are sure enough to make a fine-grained black fire yao with a quality far exceeding that of this era, including propellants and explosives. Even the supply of saltpeter is not too difficult, even if the supply of saltpeter is not available from Guangzhou, a certain amount of nitrate can be obtained by using the stacking method. According to the information queried, in 1959, a county built a black fire yao manufacturing plant for quarrying, and did not rely on foreign saltpeter to transport in, only relying on the county's soil nitrate collection and stacking method, which could reach the level of 50 tons of black zha medicine per year. If you control the county government of Lingao, you can still do 20~30 tons of black fire yao a year.

Lin Shenhe said: "The most important thing is security and stability. It's okay for the black fire yao to replace the problem, but we still lack fire caps, and without fire caps, the industrial sector can only make smoothbore guns. ”

To make a fire cap, you have to have mine mercury. Thundermercury is an initiating agent. The shells and grenades of the black fire yao are okay, and the Minnie rifle of the traverser must have a fire cap.

The process of thunder mercury is not complicated: it is simply a product of dissolving mercury in nitric acid and mixing it with alcohol and zuihou.

Mercury is not an easy thing to obtain, and the Guangzhou advance station even bought mercury and cinnabar, but only brought back about 10 kilograms of mercury, which has already bought out all the pharmacies in Guangzhou. The chemical group has also considered making thunder silver, at least silver is much more than mercury, and silver is non-toxic, but thunder silver is more sensitive than thunder mercury. Or thundermercury is safer.

Mercury requires high-purity alcohol, and it is not difficult to make alcohol, but now the potato crops have not come down, and it is a bit of a waste to take rice to make alcohol, and the commerce and trade department bought a batch of the strongest soju from Qiongshan County through the purchaser Lin Quanan, and the chemical group designed and manufactured a wood, tin structure of the still, which is used for secondary distillation, the first time the liquor is distilled into crude alcohol, and then distilled again, so that the concentration of 96% alcohol is obtained, and the remaining residual liquid is fusel oil, This stuff can be used as a raw material for penicillin. Of course, it's too early to talk about penicillin.

Xu Yingjie is responsible for the trial production work. The man who liked to play with all kinds of disgusting chemicals had flipped through his chemical manuals countless times, and had read the process he had copied down from the database over and over again until he remembered the whole process perfectly.

The manufacture of pyrotechnic products is the most dangerous part of the entire military chemical system, and even in the modern factory environment, danger is often associated with the producers, not to mention those who are prepared to manufacture them with rudimentary equipment.

Although mine mercury itself is sensitive and dangerous, it is relatively safe to react in a humid environment. However, for those who play with firework for the first time, they are not afraid that it is bragging. To be on the safe side, everyone withdrew from the reaction lab. He was left alone inside. The military team originally wanted to sponsor a set of explosion-proof suits in friendship, but it was not very easy to work after wearing that thing, so I had to give up.

Xu Yingjie first put the pure mercury into the ceramic jar, and then added * kilograms of nitric acid, and then heated to *~* °C with a hot water bath, in the heating process to oscillate from time to time, the mercury slowly dissolved, after about 40 minutes, Xu Yingjie got a jar of green mercury nitrate solution.

After mercury nitrate is made, the *% purity of alcohol * kg is preheated to *~* °C, and mercury nitrate is added to the alcohol at this time. It's important to control the temperature here. Xu Yingjie always pays attention to the display of the thermometer.

As soon as the alcohol was poured in, the reaction began, the mercury nitrate solution began to boil, and after all the alcohol was poured in, it was slightly shaken, and at this time he saw that the temperature of the thermometer had risen to *°C. Illustrate that the reaction was successful. After the temperature slowly reached *°C, the reaction tank was filled with white smoke, Xu Yingjie knew that the preparation had been basically successful, and if there was no red smoke, he could directly withdraw and rest and wait for the reaction to be completed. He looked at his watch and noted when the reaction began.

He checked the glass condenser above the jar to confirm that it was working properly. This thing is used to collect the smoke during the reaction. The smoke produced during the reaction is not only toxic and flammable, but once condensed in the reactor, it will affect the yield and quality of mine mercury.

The people in the chemical industry team all stared at the courtyard door from a distance, and everyone applauded when they saw him come out, and Xu Yingjie was very cooperative with a few poses.

An hour and a half later, when they walked in again, the reaction had completely stopped, and a layer of gray granular material had condensed at the bottom of the reactor, somewhat like gray sand.

Xu Yingjie carefully collected the wet thunder mercury, wrapped it in cotton cloth, and then squeezed out the water with a manual compressor to make the moisture content less than 5%. Under normal circumstances, the mercury should be dried in a special drying room for 10~15 hours. Now there is no such condition, so it can only be dried naturally.