The son crosses every night

Jing Xun considered that he should send someone to Tanghua in a day, and Tanghua didn't see him. After receiving the manpower, he immediately sent the fifty Qinghuiwei to the suburban village to guard it.

The roof of the new house in Biezhuang has been sealed, and Tanghua ordered people to clean up five rooms to make Datong shop, five rooms for 50 people, and hired cooks and servants for them to cook and do laundry, just to ease the hearts of these people.

The Qinghui Guards were not considered regular guards of the royal palace, nor were they soldiers of the Dasheng Dynasty. They were not ranked according to the ranks of the captains, chiefs, etc. They only formed a team of ten people, called the captain, and the tenth team had a big captain.

Tang Hua only needed 50 people, but Jing Xun still assigned him a captain named You Hong.

At the age of 26, You Hong was married once. His mother-in-law died and he had no children. He had no plans to remarry for the time being, so he ate and lived with the soldiers in the camp, and was loved by his subordinates.

Two days later, Tanghua personally went to the village in the suburbs, took him to inspect the suburbs, and told him which places to focus on.

The nearby [-]-acre fields are all under the name of Tanghua, as long as strangers are not allowed to approach.

You Hong responded very seriously, and immediately adjusted the manpower according to what Tang Hua said, and then suggested, "This place is very open, so it is better to raise a few watchdogs to watch, so that if there is a disturbance, you can detect it in time."

Tang Hua nodded and said with a smile: "I didn't think it through before, so I have to trouble you to find some good dogs."

You Hong agreed.

Tang Hua didn't come here today just to see how You Hong and the others were doing their inspections. He came here today mainly to see the matter of Xiang Yunsha.

Xiang Yunsha has only dyed one autumn cloud pattern, the peony pattern is still being adjusted, but the dark azure pattern is stuck.

He had planned to paint gold powder on it before, and he had worn clothes painted with gold powder and embroidered with gold thread before, and he didn't realize how difficult it was to get gold powder and gold thread. However, when the dyer came, he inquired and found out that gold powder is nothing nice one.

When they make gold powder here, they need to melt the gold first, add mercury slurry, and then add salt.

The liquid gold amalgam will be adsorbed on the surface of the powdered salt, and after the amalgam is evaporated, the powdered salt will be washed away to obtain fine gold powder.

Tang Hua was dumbfounded when he knew the truth about what kind of clothes the palace made and what clothes he wore.

At any rate, he has studied chemistry, and he knows how terrible mercury paste is. How can such gold powder be attached to clothes? His customers are all high-ranking officials and dignitaries. The best piece of cloth even has to be tributed to His Majesty. Come Jinfen, how many heads does he have enough to chop off? !

If something really happened, the entire Gu Palace would not be enough to drag him down!

Tang Hua immediately stopped the gold powder urgently, and asked his subordinates to think of other ways.

Seeing this, He Zi cautiously suggested using gold leaf instead of gold powder.

Gold leaf is not much larger than gold powder, and there are gold leaf as thin as a hair, which can completely replace gold powder.

Tanghua knows a little bit about gold leaf. To make gold leaf, you must first pat the gold leaves, then drop the leaves, kang kang, make twisters, beat the foil, issue, and cut the foil. After ten or so processes, every bit of gold leaf consumes production. the great effort of the reader.

The gold leaf produced in this way is good-looking, but it is also really expensive. Tang Hua didn't want to use gold leaf at first because gold leaf is expensive, three times more expensive than gold, and the cost is really high.

Now he has no choice but to ask someone to contact the gold leaf workshop to avoid delays.

Tanghua has a lot of things to do, and he has to be busy with the household department and his own business. When he goes to Ruan Shijie at night, he has to memorize his texts and learn Japanese. From morning till night, he suffers from the pity of his white jade-like face. Some dark circles come out.

Ruan Shijie changed a batch of new summer clothes for him that day. Tang Hua looked at the clothes in the cloakroom, poked his head out, and asked, "Sir, don't I still have so much to wear? Why did I get new ones?" gone?"

Ruan Shijie said casually, "You've lost too much weight recently, your original clothes didn't fit you well."

Tang Hua lowered his head and pinched his waist, wondering: "Is there? I didn't notice it?"

"Yes." Ruan Shijie beckoned him over, "Go down to eat first, drink today's tonic soup quickly."

"Oh." Tang Hua put down the clothes in his hands, and when he thought of the clothes Ruan Shijie bought for him before being thrown away, he was very reluctant, so he couldn't help whispering: "It's such a waste to throw away so many clothes. "

"Don't waste it. Some were sent to related studios I invested in, and some were donated." Seeing that he was still frowning, Ruan Shijie sighed, "You are young, why do you worry so much?"

Tang Hua opened his black and white eyes, and said, "You bought it for me."

After he finished speaking, he felt that he had seized the opportunity, so he hurriedly followed He Xiling's instructions, stumbled and teased, "Fuck, a little more care will make me look more mature mentally, and I'm just right for you?"

Seeing his clumsy appearance, Ruan Shijie shook his head helplessly, "Why don't you hurry over here?"

Tang Hua had already smelled the scent, and when he saw him beckoning, he hurried over with a smile.

The two went downstairs to the restaurant for dinner.

Ruan Shijie recently invited a nutritionist to cook a meal every afternoon.

When Zonghua was with him, he didn’t use much for dinner. He only used five minutes to fill his stomach. He went here to fill up another portion. From soup to vegetables to desserts, Zonghua could eat enough every day. After studying for two hours, it was just right. Digestion is about the same, and it is convenient to go back to sleep.

Tang Hua came over to take a look, "Hey, eat fish today? Sir, this fish looks so strange, what kind of fish is it?"

"I don't know, it's a kind of sea fish. If you are interested, the nutritionist will come over tomorrow and ask him."

The nutritionist didn't finish cooking until 45:[-], and the dishes on the table were still hot, and the fish was steamed especially well, without any fishy smell.

After eating a piece, Tang Hua couldn't help but take a piece of the tender meat off the belly of the fish, and sent it to Ruan Shijie's bowl, offering the treasure and saying, "Sir, this fish is delicious, you can try it."

"I know, eat yours and leave me alone."

Ruan Shijie has reached the age when he has to work hard every day, control his diet and keep in shape.

He doesn't eat dinner, and now he uses some with Tanghua, but he doesn't eat too much, he only eats half a bowl of food, and stops his chopsticks.

On the other hand, Tang Hua, who is still growing taller, can eat a cow every day. The three dishes, one soup and a small dessert on the table are quickly swept into his stomach by him.

After finishing his meal, he swiftly packed up the dishes and threw them into the dishwasher. He came over and burped a little, and quickly covered his mouth in embarrassment.

Ruan Shijie looked at him and smiled, then gently pushed his back, "Go and brush your teeth."

Tang Hua responded, obediently went to find his own toothbrush to brush his teeth.

After eating and brushing his teeth, it was not yet 09:30.

"Sir." Holding the book, he asked, "Can I ask you something?"

Ruan Shijie looked up at him, "Ask what?"

Tanghua didn't bother him with his children's affair, but only asked about the printing and dyeing of Xiangyun yarn. He explained the situation first, and then said: "I saw that they used garlic water to paste gold leaf on clothes. I asked them to try it." Try it, not only does it not stick to it, but it also smells like garlic."

Ruan Shijie recently accompanied him to read a lot of papers, and learned about his business, and asked, "Didn't you use fish glue?"

"Isinglass doesn't work either, it makes the clothes hard and uncomfortable."

Since Tanghua started his business, he has been escorted by Ruan Shijie all the way, and has never encountered any problems. After this problem appeared, he spent a lot of energy, but he was quite helpless, and he was already a little upset.

Ruan Shijie reminded him, "Have you read the relevant papers?"

Tang Hua nodded. He looked through a lot of materials, but he couldn't find an effective method.

It was only recently that he discovered that although the thesis is good, not everything can be found on the paper. Everyone is tightly clutching the relevant contemporary technology that can make money, and he can't refer to it even if he wants to.

The industries under Ruan Shijie's name are mostly high-tech industries, and they don't know much about them.

He pondered for a moment, "Why don't you try gelatin?"

"Gelatin?" Tang Hua had some impressions in his mind, "I'll find out how to make it."

Gelatin is more troublesome than isinglass. Remove the inner layer of skin such as cowhide and pigskin, cut it into small pieces, soak it in lime milk, then add hydrochloric acid to neutralize it, and then add water to cook, filter, concentrate, and cool. .

In just a few sentences, it contains the technical difficulty of hydrochloric acid.

Tang Hua had no choice but to find a way to make hydrochloric acid.

He can find out the principles of the laboratory method and the modern industrial method, but he wants to move to his other village to make it, but there is no way.

Tanghua now has to face the dilemma of making sulfuric acid first and then hydrochloric acid.

Tanghua got dizzy from reading. He rubbed his head and put his face on the cold desk, "Sir, why do I think I should go to graduate school in chemistry?"

Seeing his listless appearance, Ruan Shijie patted his head, "The admission requirements for graduate students in chemistry are much stricter. You haven't received undergraduate training, and you haven't had three or five years of surprise study. No one dares to take you."

When Tanghua heard him say this, he looked at him sadly, let out a sigh of relief, and recited: "I have two methods now, one is to burn sulfur or treat pyrite at high temperature to produce sulfur dioxide and finally sulfuric acid. Sulfuric acid is obtained by using vitriol as a raw material and calcining it in a distillation pot."

"Use green alum, aren't you in the imperial capital? There must be a Taoist temple, and you can buy related things."

Tang Hua nodded, "Then use this."

With sulfuric acid, hydrochloric acid is easy to handle.

In the [-]th century, there was a technology of heating salt and sulfuric acid in a distillation pot to produce sodium sulfate, and absorbing the irritating gas escaped with water to obtain hydrochloric acid. It is not difficult to make.

Tanghua had learned this passage in textbooks, and he remembered this passage clearly, and it was just a breeze to get sulfuric acid and hydrochloric acid.

Things finally got a clue, and Tang Hua relaxed a little.

Ruan Shijie looked at him, "Tomorrow is June 28, do you want to go out and play?"

Tang Hua was stupefied in learning, he raised his head, his eyes became bigger and brighter because of his thinness.He has been suffering from seizures for a while now, his facial features have developed a bit, his eyes are not as round as they were when he was fifteen or sixteen, but tend to be bigger and longer.

His eyes are very beautiful, especially at the end of the eyes, the curvature is excellent, it looks like a drawn painting, full of charm.

At this time, the picturesque eyes were full of puzzlement.

Ruan Shijie stared into his eyes and reminded him, "The exam is coming soon, why don't you go relax?"

Tang Hua was in high spirits, "Sir, where are you going to relax?"

Ruan Shijie smiled: "There is a new theme park in the suburbs, shall we go?"

It was only then that Tanghua came to his senses, and then wondered, "I'm not a child, so I don't need an amusement park?"

"Chen Sui and He Xiling are going, and I want to ask if you want to go together."

Tang Hua couldn't understand it, it was nothing more than Brother He's passing, he often had convulsions, why Brother Chen followed him to some amusement park, it was so strange.

Ruan Shijie seemed to see what he was thinking, and explained: "Not only children, as long as the mind is young, anyone can go to the amusement park at any age."

At this time, Tang Hua was most afraid of people saying that he was young, so he immediately said: "I'm not young, I'm old, sir, let's not go to that amusement park."

Ruan Shijie saw that he was anxious to clarify, but couldn't help laughing.

Tang Hua saw that his eyes were smiling, and the anxiety eased. He rolled his eyes and said, "Or else go? If you want to go, sir, I will accompany you."