After the prosperous Tang Dynasty

In a blink of an eye, it is already September, and the sweet-scented osmanthus is fragrant.

The soap recipe that Xiao Yansui gave to Mrs. Pei has long been remade by craftsmen according to the above steps, and even the citrus-flavored soap and suet soap that Xiao Yansui mentioned casually are made separately After it was cut into pieces, it was delivered to her.

Xiao Yansui looked at those small pieces, and originally intended to make liquid soap again, but after thinking about the troublesome process and the inconvenience of storage, she gave up on her own.

Coincidentally, the trees are now full of osmanthus flowers, wisps of sweet fragrance, that day when Axiu came back from the kitchen, she brought a few pieces of extremely small and exquisite sweet-scented osmanthus candies.

Axiu put the plate on the table next to Xiao Yansui, and said with a smile: "Liu Niang, just now the kitchen said that this is made of sweet-scented osmanthus freshly harvested in the past few days, you can try it."

"Well," Xiao Yansui put down the pen in her hand, took a casual bite, and thought it was okay, but it didn't particularly suit her taste. Take it to share with a few maidservants.

However, looking at these sweet-scented osmanthus candies, she remembered that if making soap, sweet-scented osmanthus itself is also a very easy-to-obtain raw material. I mentioned something to Pei Shi.

With such a reminder, Xiao Yansui will naturally not continue to take things to heart. Anyway, if there are other flowers and plants that can be used to make soap, Mrs. Pei only needs to mention it to those craftsmen, and naturally someone will think about it work around.

It will be the Mid-Autumn Festival soon, and Mrs. Pei has been busy preparing for the rituals for relatives and friends these days. As for the family banquet, she has not even prepared for it at all—anyway, there will definitely be a Mid-Autumn Festival banquet in the palace on that day. People, Xiao Song is a high-ranking and powerful person who is favored by Xuanzong, He Shi is his first wife, Mrs. Xu Guogong, Xiao Hua is also the emperor's close minister, as for Xiao Heng, he is the son-in-law, and Princess Xinchang is Xuanzong's own daughter. Needless to say.

Roughly counting, these people in Xu Guogong's mansion must all go to the palace to celebrate the Mid-Autumn Festival. What's more, when the Mid-Autumn Festival is full of reunion, when the palace invites ministers to the Mid-Autumn Banquet, they must not leave their families alone. They were separated, so that, in this Mid-Autumn Festival, all the important officials in the court and the central government were dragging their families one by one, and Xiao Yansui, who was only six years old in a few months, was naturally among them.

Early in the morning, Mrs. Pei rushed to Xiao Yansui's yard and dug her daughter out of the quilt who was still sleeping in the cage.

Just after waking up, Xiao Yansui was still sleepy, and subconsciously opened her eyes wide, sat on the bed, and looked at Mrs. Pei in a daze.

After a long while, Xiao Yansui called out: "Morning, good morning."

"..." Mrs. Pei rubbed her precious daughter's head helplessly, and urged with a smile: "I'm going to the palace to attend the palace banquet today, so I have to get up early and get ready."

"Oh." Xiao Yansui replied in a daze. She heard Mr. Pei talk about today's events two days ago, but she didn't expect it to be so early.

After Xiao Yansui rubbed her eyes and woke up a little bit, Mrs. Pei directed Axiu to open all Xiao Yansui's wardrobes, and picked out a set of Qian Seru, which was extremely festive in color. Skirt with pale pink ribbon pattern on it.

In her previous life, Xiao Yansui liked all kinds of simple colors and extremely simple and clear clothing styles. For such complicated patterns and gorgeous colors, she probably lacked aesthetics to some extent. Although her eyes were a little straight, but, However, she never expresses her opinion. Usually, Axiu helps her choose the color of her clothes, and during important festivals, naturally, Mrs. Pei personally helps her.

Xiao Yansui yawned slowly, quite leisurely, she was put on such a beautiful red dress, not to mention, even the hair that was usually combed in a relatively simple style was loosened and re-combed. It's just that a five-year-old girl doesn't have much hair. Xiao Yansui sat in front of the vanity mirror and watched Axiu busy for a long time, which made her feel sleepy again.

However, the hair bun that is much more complicated than usual looks quite beautiful, and there are various small and delicate hair accessories with pearls and gemstones dotted in the hair, and it complements the skirt that is more gorgeous than usual .

Xiao Yansui looked at her appearance in the Linghua mirror, and it was rare for her to look carefully for a while, and the feeling she felt the most was that no one would touch her head today, otherwise, would she accidentally give her hair to her? Got messed up and have to do it all over again?

Originally, Xiao Yansui thought it was all over, but Axiu flipped through a small box in her dowry, and in the end, she even patched a small flower on Xiao Yansui's forehead. Tin.

Hey, this is kind of fun...

Xiao Yansui finally got a little bit interested, and looked at himself in the bronze mirror with great interest. After looking around for a while, he felt that although the reaction of the silver mirror was a bit troublesome, it was still necessary to make it clearer. out of the mirror.

——Although she usually has a maid to help comb her hair, Xiao Yansui usually sits in front of the mirror with her eyes closed and rested, never staring at it carefully, but at this moment, she suddenly saw something interesting, of course, the mirror is more clear alright……

For making a mirror, the simplest association is naturally the silver mirror reaction. The silver nitrate solution reacts with sodium hydroxide to form a white precipitate, and then gradually adds concentrated ammonia water until all the white precipitate produced before is dissolved to form a silver ammonia solution. Add acetaldehyde dropwise, heat it with hot water after shaking, and then you can see a layer of metallic silver being plated on the container.

However, although the process of the silver mirror reaction is very simple, it was when there were laboratories and various ready-made chemical reagents. Now, in Xiao Yansui's hands, sodium hydroxide is the easiest to get. of.As for the others, there is no silver nitrate solution, and concentrated ammonia must be prepared in a way. Acetaldehyde—although acetaldehyde is not poisonous, it is volatile, flammable and explosive. She is alive and well now, and she does not want to blow it up again. After thinking about it for a while, Xiao Yansui dismissed the idea, let's change it to glucose solution, which may be relatively easier to obtain!

However, after changing the acetaldehyde to glucose, the reaction process is still the same, just drop the glucose solution into the silver ammonia solution, then shake and warm in hot water.

So, now the only problem left is silver nitrate solution and concentrated ammonia water, where can she find it...

Elemental silver is the best thing to get. The silver taels in her own hands can be just a couple of pieces. Tang Dynasty should also be able to find concentrated nitric acid. The main product of saltpeter mines is saltpeter, and the main component of saltpeter is naturally potassium nitrate. , Calcining potassium nitrate in a closed container will generate nitrogen dioxide gas, and nitrogen dioxide is soluble in water, which is directly nitric acid.

——Of course, although the principle is very simple, the production process of nitric acid is really not something that Xiao Yansui can do in her own yard. However, she thought, when those Taoist priests concocted alchemy, they probably used saltpeter, Their alchemy furnace seems to be able to calcine saltpeter. Well, in this case, she may find a way to find nitric acid from a Taoist who is keen on alchemy, and then put silver in it...

The only thing that is inconvenient is that Mrs. Pei goes to the temple to offer incense every month, but has never been to a Taoist temple.For a while, Xiao Yansui couldn't tell where there was a more reliable Taoist temple in Chang'an City.

As for concentrated ammonia water, it is the same as nitric acid production. The chemical principle is very simple. Heating the mixture of solid ammonium chloride and slaked lime produces ammonia gas that is introduced into the water to become ammonia water. However, the actual implementation process is quite troublesome. , still can't get it...

Sitting in front of the vanity mirror, Xiao Yansui thought about it for a while, and even thought that he should consider giving up the silver mirror reaction. Anyway, in this day and age, some craftsmen's craftsmanship itself can be called ingenious, directly making simple silver into silver powder Painted on the back of transparent and colorless glass, or polished directly on a flat silver block, such a silver mirror itself is actually much clearer than a copper mirror...

Xiao Yansui was seriously thinking about various plans in his mind. After much deliberation, he still felt that he needed a pen to write out all the relevant chemical equations on white paper, and then consider the source of each chemical reagent. , After comprehensive consideration, you can finally sort out your own thinking.

After all, although the silver mirror reaction is troublesome, if she can take this opportunity to get concentrated nitric acid and ammonia water, it will be easy for her to do other things in the future. After all, these two things are the most common in the laboratory. Also the most commonly used chemical reagents.

What's more, modern mirrors, because of the cost problem, have long since abandoned the method of silver plating. Because the color of aluminum powder looks similar to silver, it is also silvery white and has a shiny metallic luster. "This name, aluminum plated on the back of the glass, is naturally a mirror...

Many thoughts flashed through Xiao Yansui's mind, while Mrs. Pei was sitting on her daughter's bed, seeing her young daughter who was dressed up, although she was still pretty and cute, but quite imposing, Covering her lips, she couldn't help but chuckled, and praised: "Liu Niang is more beautiful today."

Xiao Yansui was still distracted, completely subconsciously, and replied without turning her head: "Aniang is also beautiful."

A simple sentence, it sounds like childish words, but it is so easy to coax Pei Shi to smile even more.

After such a toss in the early morning, Xiao Yansui was naturally taken back to her own yard by Mrs. Pei, and the family had breakfast together.

After Xiao Yansui's train of thought was interrupted, she didn't continue to think about it. She just thought that after returning from the palace for today's Mid-Autumn Festival banquet, she would go to the study to organize her thoughts.

Xiao Heng and Xiao Wu were also dressed in clothes that looked a little different from usual. When Xiao Yansui sat there, he looked at them for a while.

Xiao Heng smiled at her, Xiao Wu didn't need to go to study today, he just went directly to Xiao Yansui's side, the energetic young boy said seriously to his sister: "Liu Niang, follow brother today."

Xiao Wu also had lingering fears about what happened at Ximing Temple last time, especially because Xiao Wu was not a few years older than Xiao Yansui. He was probably at the age when cats and dogs were teased and hated by people on weekdays. However, for his younger sister, Xiao Wu Wu is full of protective desire.

After hearing this, Xiao Yansui just smiled and said: "Okay." But the next second, she looked directly at Mrs. Pei, she was not sure if she and Xiao Wu could sit together, although It's a family, but Xiao Yansui thinks that the young man and the young lady have a separate banquet in the palace.

Pei's expression seemed to be normal, and she put two chopsticks into the bowls for Xiao Wu and Xiao Wu respectively, and then said: "You all stay with A Niang first."

After speaking, Mrs. Pei raised her head to look at Xiao Heng again, at Xiao Heng's age, he has not yet reached the crown, has not entered an official position, but he is not a child anyway, and said directly: "Sanlang is with you, Aye. "

"Yes, Ma'am, don't worry." Xiao Heng smiled and nodded.

Xiao Yansui looked up at her two elder brothers and her mother, Mrs. Pei, thinking of Princess Wan'an, a few dangerous thoughts flashed through her mind.

It stands to reason that this time it was in Xuanzong's Xingqing Palace, especially during the Mid-Autumn Festival, so Ximing Temple was fine. It is estimated that there were not many people who dared to deliberately cause trouble at this time and this place.

Even Princess Wan'an, Xiao Yansui didn't think that she dared to brazenly continue to attack herself at this time.

After all, the incident at Ximing Temple last time was sort of suppressed. If it happened again in the palace, no matter how much Xiao Song took care of the overall situation, it would be impossible for him to keep silent...

Before going out, Mrs. Pei and Xiao Yansui were standing beside the carriage. Before the maid was ready for the low stool, Xiao Heng had already walked over, stretched out his arms to pick up Xiao Yansui, and sent him to the carriage.

"Thank you." Xiao Yansui sat in the car and poked her head out and said to him.

Xiao Heng looked at his sister and smiled.

Xiao Wu stood by and looked at him, and asked in a low voice, "Which carriage should I take?"

At this time, the maidservant had already placed the low stool, and Xiao Heng raised his hand to support Mrs. Pei, and after sending her into the carriage, he turned around, saw his younger brother Wulang, and walked over.

Xiao Wu opened his eyes slightly, took a step back, and said vigilantly, "Brother, what are you doing?"

Xiao Heng: "..."

In the next moment, Xiao Wu didn't have time to react, and was directly picked up by Xiao Heng and thrown into the same carriage.

"Aw!" Xiao Wu was taken aback for a moment, subconsciously opened his mouth and shouted.

Xiao Yansui: ==! ?

Mrs. Pei stretched out her hand to support the youngest son who was put in, smiled a little reproachfully and glanced at the eldest son, and said softly with a little reproach: "Sanlang, you're teasing him again."

Xiao Wu: This elder brother will never get better QAQ! ! !

"Aniang, Wulang, Liuniang, I'm going to get into another carriage," Xiao Heng smiled casually, with a bit of innocence and gentleness.

Pei nodded with a smile, "Go."

Xiao Yansui also looked at Xiao Wu with sympathy, and stretched out a finger to poke him lightly. After poking Xiao Wu with a "hey", Xiao Yansui stretched out his hand and waved lightly at Xiao Heng. waved.

Xiao Heng saw it, smiled again, and waved to his sister, then turned around and got into another carriage.

Sitting in the carriage, Mrs. Pei didn't let the accompanying maid Yunyan do anything, but straightened Xiao Wu's lapel by herself, made it docile, and said casually: "This time when I come back from the Mid-Autumn Palace Banquet, it will last until this day." At the end of the month, you, A Weng and A Ye, are on leave of granting clothes, Wu Lang and Liu Niang are also much taller, just in time to make this year's winter clothes."

Yun Yan added softly at the right time: "Winter is coming in a blink of an eye, but when it's cold, winter passes quickly, so you can make two sets of spring clothes for next year."

Mrs. Pei nodded slightly, seeing these two children who looked the same in a few days because of their young age, they also smiled and said: "That's true."

Along the way, Mrs. Pei thought of something, and from time to time she whispered a few words to the two children. Although Xiao Yansui and Xiao Wu usually had their own ideas, they always listened to what their mother Mrs. Pei said. Has been seriously nodding in agreement.

Unknowingly, while talking, the carriage arrived in front of the palace gate.

Xiao Yansui opened the curtain of the carriage, and saw that there were already many empty carriages parked around, and it seemed that only the coachmen from various prefectures were left around. As for the owners of the carriages, they all entered the palace one after another. middle.

As soon as Xiao Yansui turned her head, she saw that her father Xiao Hua and elder brother Xiao Heng, who had come together all the way, had already got off the carriage, and the two of them raised their heads and walked towards this side.

"Aye." Xiao Yansui greeted softly.

Xiao Hua nodded, and stretched out his hand to help Mrs. Pei down. As for Xiao Yansui and Xiao Heng, Xiao Heng still did the work for him, but because he was about to enter the palace soon, for Xiao Wu, Xiao Heng finally didn't do it again this time. He took him down casually, but gave him a hand, helped him jump off the carriage, and then smiled: "Be careful not to sprain your ankle at this time."

"It's okay." Xiao Wu didn't care, the height of the carriage was really nothing.

For Xiao Yansui, who was younger, Xiao Heng was already used to walking with her in his arms at a slightly longer distance, so it was more logical to carry his well-behaved sister out of the car.

The Xingqing Palace is already magnificent and beautiful. Rao Xiao Yansui, even though he visited many well-known palaces at home and abroad during his travels in his previous life, those have already been accumulated over the years, and they have long since become old and will be long The years and occasions are integrated into it, their existence, writing is the vastness of history, the palace is magnificent but also extraordinarily empty, the building is magnificent but even more lonely, far less than this time, the real residence of an emperor in the heyday of Tang Dynasty The time comes so real, fresh and vivid.

Xiao Yansui has been following Pei's side step by step. Naturally, at the gate of Xingqing Palace, there are maids and servants with their own duties, waiting to lead the way for the ministers and noble ladies and wives of various households.

Xiao Yansui usually seldom goes out, and she stays in her yard all day on weekdays, and she doesn't know what she is up to. Today, it is rare to go out, but it is directly in the Xingqing Palace, so Pei's will naturally focus most of her attention on it. placed on her.

In fact, not only Mrs. Pei, but also Yun Yan, the only maid with Mrs. Pei, and Xiao Wu, who is not very old, have been watching Xiao Yansui seriously, for fear that something might happen to her.

"..." Xiao Yansui never expected that Xiao Yansui could be like this when he went out.

It was not until the palace maid led a group of people to the seat, sat down and had a place to rest, that Mrs. Pei breathed a sigh of relief, lowered her head slightly and quietly asked her two children: "Are you tired?"

Xiao Wu and Xiao Yansui shook their heads almost simultaneously.

Xiao Wu is usually lively, but as for Xiao Yansui, although she stays at home, she just walks the dog at home when she has nothing to do!When she didn't adopt a little dog, she used to take a stroll in the yard. For a five-year-old child, the amount of exercise she got at home was not small at all, even compared to those who often followed My mother's going out as a guest is actually a little lady who is sitting in someone else's house. I'm afraid she still has a little more energy...

At this time, it was only two months since Concubine Wu Hui passed away.

Concubine Wu Hui's biological children had to observe filial piety, so Princess Xianyi and concubine Yang Hui naturally stayed in Chang'an City.

Because of the pain of losing her mother, after two months, Princess Xianyi looks much lighter than before, especially today, during the Mid-Autumn Festival, Princess Xianyi is wearing a light-colored palace attire. When she got up, the wide long-sleeved skirt was swaying, and she was so thin that she felt a little fragile.

Mrs. Pei lightly signaled to her daughter that she was dressed so beautifully and festively today, if she was talking and playing with other people, she would naturally have to hang out with people who were also gorgeously dressed and lively, but she had to stay away from Princess Xianyi and the others on purpose.What's more, Princess Xianyi and Shouwang Li Mao are brothers and sisters of the same mother, and Xu Guogong's mansion has no friendship with Shouwang before. At this moment, Concubine Wu Hui died, and Shouwang Li Mao's status is extremely delicate However, no matter what the reason is, the Pei family will only keep her daughter away.

Xiao Yansui nodded. In fact, even in such a lively place, she just wanted to sit peacefully. She was not interested in running out to play...

Princess Xinchang had already gone to talk to her sisters who were close to her in normal times. The princesses gathered together, chatting and laughing freely, which was quite lively.

Princess Ningqin was pregnant before, and she has been quietly sitting on the seat with a smile on her face. Counting the days now, she is almost five months younger, and her belly is slightly showing. It is not obvious to cover up.

Mrs. Pei and Princess Ningqin met their gazes, and they nodded slightly as a gesture. Mrs. Pei was about to tell Xiao Wu to take good care of Xiao Yansui, but she herself got up and went to talk to Princess Ningqin, and saw, Jiulang Zhang Dai, who had been sitting quietly beside Princess Ningqin just now, had already got up, walked over quickly, and greeted Mrs. Pei casually, then his eyes fell on Xiao Yansui, and asked directly: : "Xiao Liuniang, is the injury on your hand healed?"