The Notre Dame system is arrogant again

Chapter 494
"I know that many girls think about marrying. It seems that in a girl's life, marrying is the meaning of her life. Whether she is smart or stupid, talented or scumbag, noble or humble, find A man who likes and is liked is the most important thing. But I don't think so, I don't want to marry!"

Zhang Xiaohua simply said it more clearly.

"I want to live on my own, I only live for myself, I don't want to revolve around a man, I don't want to revolve around a man's family, and me and his children, but this kind of life needs money and a lot Money, this is my purpose and my dream, I want to be free!"

Zhang Xiaohua looked at him seriously and said.

"Duan Li, we are friends, I hope we will always be friends. I will not marry you, I just want to make money with you happily, and help each other when we are in trouble. If you get married in the future, I will bless you, We are still friends. So, I give this to you, and if I think of other ways to make money in the future, I will give it to you. But we can’t be together, if we are together, maybe one day we will hate each other, maybe in the end Can't even be friends. I don't want that."

Duan Li looked at Zhang Xiaohua fixedly, he seemed to realize that this is what Zhang Xiaohua wanted to say, and he just wanted to tell him not to marry him.

Sensitive, he thought of more for a moment, was it because he was holding her just now, it must be.

This made him feel a little stuffy in his chest, and he felt unspeakable anger, discomfort, sourness and other bad emotions.

This is something he has never experienced before. For so many years, no matter how humiliated, bullied, or even physically painful, he has never felt such emotions.

He felt that Zhang Xiaohua cared about his background, his experience...

He was abandoned, rejected, his sincerity, his feelings, just like a joke.

She doesn't like herself, she never liked herself.

Not to marry, huh, huh, how come, which girl will not marry, she just doesn't want to marry herself.

She chose Duan Yu.

Who else but Duan Yu?
After saying so much, is it because you are afraid that he will feel uncomfortable?
No, no, I just wanted to tell him to do something.

It turns out that in her eyes, he is just a person who does things, just like those people, he is just a person who does things...

Maybe, in her eyes, he is also a rag...

Thinking of this, Duan Li felt a surge of anger was about to burst out of his chest, but he suppressed it in the end.

Zhang Xiaohua didn't know that Duan Li brain made up so much, if she knew, she would have said it too, this kind of misunderstanding can't be allowed to deepen, it's immoral.

She looked at Duan Li with his head down, and she didn't speak for a long time, just about to speak, Duan Li said.

"Okay, I see, you can teach me now."

Zhang Xiaohua felt his depression, and naturally understood why, but she could only pretend that she didn't know, and smiled.

"Okay, come with me." Get off the kang and go out.

……

"...This is ten catties of lard, and this is rouge gouache. Both jars have holes drilled in the bottom and thin tubes. They are all custom-made."

Zhang Xiaohua led Duan Li into the back room and showed him one by one.

"I'll do it, you see, write down the steps, if you don't understand, you can ask to do it yourself later."

As she said that, Zhang Xiaohua brought a basin of charcoal, filled it with water, and cleaned it.

The charcoal used to light the fire has many impurities and needs to be washed off, but it cannot be washed thoroughly by simple washing, and it needs to be filtered.

Pull out a few pots, which are filled with gravel and fine sand from large to small.

Put crushed stones of different sizes, fine sand, and washed charcoal into the jar layer by layer, pour clean water, and then flow out from the thin tube at the bottom of the jar. This is simple filtration.

After washing, spread cotton cloth in another jar with thin tubes, put a layer of large pieces of charcoal, spread another layer of cloth and then spread small pieces of charcoal, followed by fine sand, small pieces of pebbles, and large pieces of pebbles , a full yard of five layers, accounting for more than half of the jar, this rough filter is considered complete.

Next, Zhang Xiaohua poured lard into the pot and told it to melt slowly, and then added soda powder to a pot of lime mixed with water.

The main ingredient of soda powder is sodium bicarbonate, and after reacting with lime solution, that is, calcium hydroxide solution, calcium carbonate precipitates and a clear solution in the upper layer are formed, and these clear liquids are sodium hydroxide.

Sodium hydroxide, commonly known as caustic soda, is an important industrial chemical raw material and is extremely corrosive. Once it touches the skin, it will decompose the fat in the skin, and the fire hazard is more serious than sulfuric acid.

"You must be careful with this thing, it will burn your hands."

Zhang Xiaohua solemnly told Duan Li.

Duan Li also put away his thoughts at this time, concentrated on watching and remembering, and nodded upon hearing this.

"I see."

Zhang Xiaohua carefully skimmed off the sodium hydroxide with a porcelain bowl, put it into the oil pan, and stirred it thoroughly, and the oil saponification reaction would occur later.

It's in this middle school textbook, but Zhang Xiaohua forgot, and only found out after reading someone else's novel.

Stir the oil pan well, and the rest is waiting.

While waiting, Zhang Xiaohua took out a block of marinated rice, the kind used to make tofu, ground it and added water to mix it well.

The brine block is a hard block formed by the evaporation and solidification of brine water. This kind of thing contains an ingredient, that is, magnesium chloride.

Magnesium chloride is a kind of salt, which will decompose into hydrogen chloride under the action of high temperature, and hydrogen chloride is soluble in water, which is commonly known as hydrochloric acid.

In the modern chemical industry, the most important chemical raw materials are "three acids and two bases". The three acids refer to sulfuric acid, hydrochloric acid and nitric acid, and the two bases refer to sodium hydroxide and sodium carbonate.

Both bases can be prepared by earth method, and the simplest method for the three strong acids is to use brine.

The lard in the pot had already started to react, and the oily yellow soap on the top layer began to solidify gradually. Zhang Xiaohua picked out the soap that hadn't completely solidified, skimmed off the top part, and added the pre-prepared rouge powder to stir. Let it stand evenly, and this part will be soap after solidification.

Lard soap without any treatment will have an oily smell, and rouge is added to cover up the oily smell.

Of course, it is best to extract the essential oils from the flowers and fruits, which will make the soap more aromatic.

But right now Zhang Xiaohua doesn't want to make it too complicated.

The soap comes out, and there are still some turbid soaps and alkaline waste liquid at the bottom in the pot, skim off the turbid things in the middle layer, and put them into a single basin.

The ingredients here are mainly unreacted lard and impurities, and a small amount of soap.

Zhang Xiaohua added the prepared brine into it, stirred vigorously and heated it, and after a while, the lard in the basin changed again and gradually solidified.

Adding caustic soda to lard will produce soap after the reaction, and adding hydrochloric acid will produce another substance, which is a candle.

Because the added sodium hydroxide solution cannot be excessive, there will always be some fats that are not fully reacted. Using this part of the fat for acidic reaction to make wax not only avoids waste, but also makes the wax better than paraffin wax and insect wax used on the market. The wax is of good quality, second only to the best tallow waxes.

And this kind of candle is brighter than oil lamps, and more importantly, it smokes less, so it can definitely sell for a good price.

(End of this chapter)