Wang Xuance has read the design manual and production process principle manuscript left by Li Chengqian during this period of time, although he is already familiar with the production process of all the workshops, but he is still confused about the strange things produced by these workshops.

Later, after a period of study in the training camp, and being brainwashed by listening to speeches in the country, I felt that it was not as simple as I thought. What is this prince doing with these things that no one understands?

"Your Highness, why did you become so excited after reading these places today? Xuan Ce doesn't understand many things, and I hope His Royal Highness will solve his doubts. Wang Xuance took advantage of Li Chengqian's sit down to rest and hurriedly came up.

"Qiming, when you first started contacting, you must be a little confused. While I'm happy today, I'll tell you about it. Li Chengqian was indeed a little proud.

Li Wujie glanced at him with disdain, pursed his lips, and happened to be seen by Li Chengqian. Suddenly I felt depressed, and finally started pretending once, and I attracted a roll of eyes. I had to cough dryly, pretending not to see it, continuing to keep a smiling face, casually pointing to a not-looking transparent glass jar I had just gotten, and said to Wang Xuance: "First of all, let's talk about glass, in fact, this thing has been around since ancient times, and it is not my creation." ”

"It's been there for a long time? How did I not know? Wang Xuance looked at it suspiciously, thinking to himself, after all, he is a child, and he probably likes to brag.

Li Chengqian said with some emotion: "Liu Xin of the Han Dynasty, Ge Hong of the Eastern Jin Dynasty copied the "Xijing Miscellaneous Records" and said that Emperor Wu of the Han Dynasty made divine objects. Wang Jia's "Collected Memories" of the Eastern Jin Dynasty said that Sun Liang, the lord of Wu, used [colored glass] as a screen, [very thin and clear, so that the four people sat inside the screen and looked outside, if there is no separation, but the fragrance is not through the outside]. The "Art and Literature Gathering" volume 84 [Liuli] article that has just been compiled has many descriptions of it. There are many other books that record them, so I won't list them all.

This thing, called Liuli in the past, has long existed in the Western Regions, and it has long existed in ancient China, but the descendants are not good, and they have lost their inheritance. All I'm doing now is restoring the original process, which I call glass in order to be a little different from the past.

In fact, it is not complicated to manufacture this thing, and the main raw materials of glass are: stone alkali, limestone, quartz sand, feldspar, borax, etc. The proportionally prepared raw materials are heated and melted at high temperatures, then molded, and finally annealed and cooled to form glass. As for the use of this glass, think about it, what if it could be used instead of window paper? What if you use it to make tableware and wine utensils? Or even what if you use it instead of doors and windows? Of course, it can also be used to make ....... Therefore, young people should read more books and not make a fuss when they see a new thing. ”

"Well, I see, Qiming has been taught." Wang Xuance was suddenly sweating profusely. I muttered in my heart, how old are you to be so old-fashioned? But this glass is a good thing, so many uses, I can't imagine that it has been there for a long time. Besides, so many of the books you said are not classics, they are all miscellaneous books, how can I, an orthodox reader, remember so much.

Li Chengqian looked at Wang Xuance's embarrassed appearance, and his heart was dark for a while, in order to find an ancient basis for glass, I rummaged through ancient books, and my hard work always paid off. So he looked up proudly and said: "Of course, the proportion of raw materials and the heat of glass need to be constantly tested, and I have also failed many times here, and I have continuously summed up experience, and now I have finally met the requirements." ”

Li Wujie looked at the expressions of Li Chengqian and Wang Xuance with a smile, and in order to ease the atmosphere, one of them poured a cup of tea. Wang Xuance hurriedly thanked him. After a change of thought, he immediately asked: "Then why do the manor workshops collect and dispose of filthy things such as human and animal feces?" ”

Li Chengqian picked up the teacup and sighed: "Actually, it is mainly to make Pu Ni, which is also a matter of no way, you think, saltpeter mines are unevenly distributed, mostly in the Western Regions, Turkic, and the nearest one is also in the area of Jiannan (Chongqing). The road is difficult, and to obtain it, the cost of mining, labor, and transportation is high.

The output of soil nitrate collected by the people is even more scattered, and the raw materials are scarce, which is only enough for medicinal purposes. In order to solve this problem, after investigation and understanding, observing the formation process of soil nitrate, and continuous experimentation, the current method was formed. There are many people and livestock in the major estates and workshops, and it is just right to collect and pile up those filthy things, which can first prevent pollution of the environment, and can also be converted into soil nitrate through manual treatment, so that it can be produced in large quantities faster than natural generation.

After that, these prepared soil nitrates can be processed in batches to boil simple nitrate. Of course, if you want to make it into a simple nitrate, you also need to collect plant ash. The charcoal ash from the porcelain kilns everywhere and the grass and wood ash from the fire in the manor can be used. And there are other uses of plant ash, such as the soap and toothpaste we use, all of which have the effect of plant ash. As for the remaining waste, it can also be used as fertilizer for the cultivation of the estate. ”

"Oh, I see, does the soap have to be made of plant ash?" Wang Xuance hurriedly asked.

"Actually, it's not all, in the past, because it was equally difficult to obtain stone alkali, it was expensive, and it couldn't be popularized at all, so plant ash was necessary. In the past, in order to make high-quality soap and soap, the plant ash must first be filtered with charcoal, alum, leather glue, etc. It is also necessary to use slaked lime to convert to caustic soda, as well as to add rosin, soaphorn and spices.

Of course, from now on, with ammonia, a by-product of coke, the production of stone alkali was small and insufficient, and this problem can be solved immediately. In the future, we will be able to make soda ash and caustic soda ourselves, and we will not need plant ash to make soap. The function of plant ash is to constantly produce simple nitrate. That's why I'm so happy this time. The more Li Chengqian spoke, the more excited he became.

"Creating so much Pu Ni, is His Highness going to get this?" Wang Xuance pointed to the swarthy, round cast iron objects on the table, with vertical and horizontal grooves on the surface.

"Yes, it's just one of those weapons, I call it a grenade. With Pu Ni, it will be possible to make things like gunpowder and nitric acid, and it will be possible to produce explosives and other chemical things in a steady stream, and then in the future there will be more other weapons, such as bullets, artillery shells, incendiary bombs, poison gas bombs, etc., which are more powerful than arrows. ”

Li Chengqian was even more recognized in the face of Wang Xuance's intelligence and intelligence. Looking at the thing that I just made, my heart was also hot, and I couldn't wait to open the insurance immediately and throw it out to try.