Dressed as a sickly villain and survived by farming

With the backing as a guarantee, Duan Rongshu has been so busy these days that he never leaves the ground.

After making the glassware, Duan Rongshu asked someone to burn a set of crucibles for him, and set aside a special room for him to conduct experiments. No one but him was allowed to enter, and Uncle Liu and Rong Yi could only do the experiment. Can watch from outside.

With the mineral map, the problem of raw materials was half solved, and Duan Rongshu began to return to his old business, making basic acid and alkali.

People found a large amount of bile vitriol, bile vitriol, which is also commonly known as copper sulfate pentahydrate, heated and decomposed bile vitriol to obtain disulfur trioxide, then introduced it into water with a glass tube to obtain sulfuric acid, and absorbed trioxide with sulfuric acid Sulfur produces concentrated sulfuric acid.

Salt was needed to make hydrochloric acid. Duan Rongshu went into the kitchen again, but the salt he got was not what he remembered.

Salt and iron were profiteering industries in ancient times, and the price of salt remained high. Duan Rongshu planned to monopolize the sale of salt, but he would not prohibit others from selling it, but would plan on the price.

There is also a reason why salt is expensive. In ancient times, salt was boiled with seawater. With the increase in cost, high salt tax and government monopoly, many people could not afford salt.

However, soil salt has a lot of impurities and contains toxic substances. The salt in my hand is also large and yellowed, which is already considered good.

Duan Rongshu took a bag to the laboratory for purification. Simple purification is to dissolve, filter, and then evaporate to dryness to precipitate out salt.

After dissolving it with distilled water, wrap the activated carbon with a fine cotton cloth, filter the salt solution, evaporate it to dryness, and scrape off the fine white salt.

Rong Yi watched him go to the kiln to burn charcoal in the past two days, and now he took all the salt from the kitchen. Looking at the dumbfounded cook, he sighed, "Don't worry, I've already sent someone to buy it."

The cook waved her hands to show that she was not in a hurry, "Uncle, this lord has not had a good appetite recently, so you can't keep busy and not pay attention to your body."

Duan Rongshu poked his head out from the door at this time, his face was not sure if it was dust from the bottom of the crucible, his eyes were bright, and he felt a little embarrassed.

Seeing several people looking at him, he took out a bag from behind, "Here, Yan, I forgot to make lunch soon."

The cook took it and opened it, "My lord, why is your salt different from the previous one?"

Rong Yi also poked his head over, poured out the salt, and the tiny snow-white salt glistened in the sun.

"I purified it, do you still have a bitter taste?"

He put it in his mouth and tasted it, then nodded, "Really, how much does a bag of this salt cost?"

Duan Rongshu smiled at the cook, "Ma'am, this is purified from the salt in the kitchen, and I figured out a way to reduce the cost, so everyone can eat this kind of salt in the future."

Rong Yi moved his eyes towards him, and the two met each other, knowing his plan.

Rong Yi wiped his face with a handkerchief. Ever since he was immersed in the laboratory, both Rong Yi and Uncle Liu had to carry more handkerchiefs in their arms, and save them for him to wipe his face. He returned from burning activated charcoal the day before yesterday. At that time, it was as if he had returned from a disaster, and his whole body was dusty.

After seeing no one around, Rong Yi said in a low voice, "Baby, can we manage to buy salt?"

"Uncle, [-]% of the protection fee. Besides, we are all part-time workers, and this is done by His Majesty."

Duan Rongshu never thought about fighting against those powerful families, unless Zhao Huai cleaned them up, otherwise he wouldn't go up to the top, this kind of thing should be done by Zhao Huai.

Duan Rongshu went into the laboratory to make hydrochloric acid again. He heated sodium chloride and sulfuric acid to produce hydrogen chloride. After dissolving in water, he became hydrochloric acid. Fortunately, the room was well ventilated, otherwise he would have died here. .

After making concentrated hydrochloric acid again, Duan Rongshu took two glass bottles to the yard, saw a marble slab next to him, and wanted to pour a few drops on it, but there was no glue-tipped dropper or anything, so he poured it accidentally A little more, bubbles suddenly appeared, and the stone was dissolved to form a pothole.

Rong Yi was shocked when he saw it. Could it be the bone-resolving water that is rumored in the Jianghu?

"Baby, you can't play with such a dangerous thing!"

"Is this bone water? Who gave you such a dangerous thing?"

Duan Rongshu turned his head and raised his dazed little face, looking innocent.

How could it be a dangerous item made by his obedient nephew?

"No, it's not that powerful."

Before Rong Yi could sigh, he heard another sentence, "Uncle, do you want it?"

Rong Yi took a deep breath, as if to calm himself down, "Uncle, don't, you can't play with dangerous objects."

The standard clip sound to coax children, whoever listens to it, cries, Duan Rongshu chuckled, "I don't play with that, I will be careful."

Ever since Rong Yi saw how dangerous what his nephew was doing, he almost stayed outside, ordering others to do it if he had something to do, and let Uncle Liu continue to watch it if it didn't work.

After making alkali, Duan Rongshu started to make soap. Apart from soybean oil, there are other oils that can be used to make soap. Different formulas are used according to different functions. In addition, there are distilled essential oils that can be added.

Fat plus sodium hydroxide and water is the basic formula. Duan Rongshu tied his climbing arm, put on a mask, and carefully added a small amount of sodium hydroxide to the water.

Introduce the lye into the oil, heat it in a water bath, keep stirring until it becomes thick, pour it into the prepared mold, and wait for it to harden and release the mold.

Duan Rongshu stretched his waist, then thought about the saltworks, wrote a letter, and wrote down the method of drying the salt and purifying it. He stood in the yard and looked left and right. where.

He raised his head and called out, "Dark guard."

……

After thinking about it, "Well, social fear with shaking hands? Come out and deliver a letter."

A black shadow flashed and fell in front of him.

Duan Rongshu: ...

"Give this letter to Your Majesty."

Mo Liu explained, "Humble employees don't shake their hands, and they don't feel social fear."

"Then how do I summon you in the future?"

"My humble name is Mo Liu, sir, call me by my name and come immediately."

"Okay, old six."

……

Inside the imperial study.

Mo Liu offered it with both hands, "Your Majesty, Lord Duan's letter."

Zhao Huai opened the letter and frowned, knowing that the money was not for nothing, so he immediately smiled,

"This lazy thing."

"What has he been doing these two days?"

Ever since Zhao Huai confessed to Mo Liu, Mo Liu followed Duan Rongshu at any time, and only reported when there were important matters, or only reported every few days, Zhao Huai still couldn't let go.

"Master Duan has been busy in the laboratory all the time, so I can't see the specific job."

"My lord took two glass bottles and poured something on the stone, and the stone disintegrated. My lord's uncle called it..."

"Bone-melting water, yes, it's this thing."

Mo Liu glanced at Zhao Huai's frown again, and added, "Your Excellency says no, uncle can do it if he wants."

Duan Rongshu was just joking with Rong Yi about that kind of storybook stuff, even if he could do it, he didn't kill people, so why would he want that thing?

Zhao Huai slapped the table, and gave Mo Liu an order, "Show me him, his oily skin is broken, you're the only one asking."

Zhao Huai wanted to rush to Huangzhuang right now, he was really afraid that Duan Rongshu would accidentally make him lose arms and legs.

"Bring an imperial doctor to take care of him when he goes back, and ask Yan Ji to send two people to him."

Then he took a deep breath, "If he really wants to play with Bone Transformation Water, don't let him do it himself."