Chapter 8 Chemical Composition of Soap

"Time is too tight, the queen has issued three edicts in succession, I'm afraid Your Majesty's time is running out, the court needs the prince to go back to preside over the overall situation as soon as possible, we can rescue the prince and then find a way to take her out of the city, at that time, it's just a woman, let's act cheaply, don't have to be as timid as now."

Qin Lao Wu nodded, "Hmm...... What the eldest brother said is reasonable, the most important thing for us now is to send the prince out of the city as soon as possible...... Hey, I don't know if Uncle Liu has done it properly. ”

When Fu Tingye heard this, his eyes became fluttering, and he looked out the window-

The scenery outside is gray, with layers of snow and a chill.

"At the beginning of the Liao soldiers, they occupied the three prefectures of Xi, He, and Mo, from the state to the government, city, town, and village...... Whether it is a judicial institution or a miscellaneous formality, it needs to be connected one by one, layer by layer...... Naturally, it is time-consuming and laborious to dot up......"

Once he thought of the land under his feet, which was changing silently, Qin Lao Wu couldn't help but be silent.

"I hope this trip will be smooth and ......," Qin Lao Wu said.

……

When the sky was slightly bright, Hua Qingxue got up.

Li Jingnan rubbed his eyes and watched in disbelief as Hua Qingxue climbed out of the warm quilt.

Oh, my God......

The sun is coming out in the west?

Didn't they get up until three o'clock in the morning?

There is no way, it is too cold, even if you wake up, you have to squeeze into the quilt and stare dryly, and then wait until the sun is drying your buttocks, and then crawl out to dry with satisfaction.

Hua Qingxue shrunk her hands and feet and put on her clothes one by one.

She has been stupid in ancient clothes and can't tell the inside and outside, Li Jingnan pointed out a few times, every time she didn't care, in the end she only remembered that the light color was worn inside, and the dark color was worn outside, it would never be wrong.

It was too cold, and the clothes were also cold and cold, only a single coat that had been covered in the quilt in advance was hot.

"There are still leftover buns from yesterday, you can bake them on the stove later, the pot was requisitioned by me." After Hua Qingxue got dressed, she combed her braids and said to Li Jingnan on the bed.

There was only one person left, and it didn't seem to be as warm as just now, Li Jingnan tilted her head on the kang and asked her, "What are you going to do?" ”

Hua Qingxue was in a good mood and smiled, "I'm going to make soap, didn't you say it yesterday?" ”

Li Jingnan's eyes widened instantly, and he looked at Hua Qingxue like a madman, "You said fragrant pancreas?" Do you know how to do pancreas? ”

Although Li Jingnan does not distinguish between grains, he also knows that things like fragrant pancreas are not affordable for ordinary people, just like not everyone can afford to eat white rice.

Hua Qingxue smiled and shook her head, "I can't make fragrant ones, I don't have spices and essences at hand, I can only make ordinary ones, but it's definitely better than what you used before, and I bought sulfur, we can make sulfur soap and use it, um!" I'll make more and sell them, so I won't be hungry in the future! ”

After Hua Qingxue finished speaking, she picked up the pot behind the door and some things purchased yesterday, and went to the yard happily.

Li Jingnan naturally didn't sleep, he was very curious, he got up quickly, put on his clothes and shoes, and ran to the yard with him.

Hua Qingxue was pouring quicklime into the pot, and when she saw Li Jingnan running out to join in the fun, she smiled a little embarrassedly, "I don't know if I can succeed...... In principle, it shouldn't be a big problem, but there is no measuring cup and measuring tool at hand, and the amount can only be estimated. ”

Li Jingnan looked at the contents of the pot and asked, "Is this about to start making pancreas?" ”

"Not yet, I need to get the sodium hydroxide out now......"

"Huh? What's that? ”

"The soap is made up of sodium hydroxide and oil, and as long as you get the sodium hydroxide, the rest will be easy."

When Li Jingnan heard this, he only seemed to understand it, and urged: "Then hurry up, I want to see it!" ”

Hua Qingxue was rarely patient, and she explained as she operated: "We first need to calcinate quicklime and then add water...... You see, this becomes lime slurry, and the chemical composition of lime slurry is...... Forget it, you can't remember, in short, now at this time to add miscanthus salt, don't ...... This amount of lime slurry probably requires this amount of miscanthus ......"

"Ahh It's blistered! Soak! Li Jingnan saw that there was a reaction in the pot, and he shouted!

"Don't get so close!"

Hua Qingxue pulled Li Jingnan to the side, he still stretched out his head to look into the pot, and muttered: "Hua Qingxue, you shouldn't be alchemy......

Hua Qingxue: "......"

Well, in fact, she thought about it, ancient chemistry did start with those alchemy Taoists......

"These are two things that are undergoing a metathesis reaction, and together they produce calcium carbonate precipitates and sodium hydroxide."

"Where? Where? ”

"Well, now the sediment in this pot is calcium carbonate, and the rest is sodium hydroxide, which is very well divided, and there is no need for secondary filtration."

Li Jingnan looked at the unknown object in the pot suspiciously, and then looked at Hua Qingxue, his expression was very incomprehensible, "This can make pancreas?" ”

Hua Qingxue nodded affirmatively, "Hmm! I'll clean it up, and you go to the house and get the oil first. ”

"Good!" Li Jingnan rushed to the house, and after a while, he came out with the oil pot.

Hua Qingxue carefully separated the sodium hydroxide from the precipitate in the pot, poured the sodium hydroxide back into the pot, scooped a spoonful of water from the bucket, and slowly mixed it into the pot.

There was an immediate violent reaction in the pot, and layers of smoke came out of the pot!

Hua Qingxue was prepared, and immediately covered her mouth and nose, and Li Jingnan did the same, covering half of her face, in the end, it was difficult to get rid of the child's sex, and secretly opened her mouth halfway to take a breath, and was immediately choked with snot and tears!

Hua Qingxue couldn't take care of him at this time, wrapped a thick cloth in each hand, held her breath and grabbed both sides of the pot, put it whole up, and put it in the prepared basin, which would submerge half of the bottom of the pot.

"Sodium hydroxide produces heat and smoke when it comes to water, but it's only a minute or so, and now we're cooling it down."

"And then you can make pancreas?" Li Jingnan wiped his nose and asked her.

Hua Qingxue shook her head, she waited quietly for a while, reached out and carefully touched the outer edge of the pot, now in winter, the cooling is already fast, plus soaking in cold water, the pot is not so hot.

Wait until about 40 degrees Celsius, and when it's warm, you can refuel.

"Huh? What about the oil I let you take? ”

Li Jingnan immediately pointed to the oil pot on the side.

Hua Qingxue saw it and immediately slapped him on the ass!

"It's our own oil! What I asked you to take is the waste oil that Aunt Yan gave us! ”

There is always a lot of waste oil left in the restaurant every day, which has been fried countless times, mixed with the residue of many ingredients, and the color is brown and black, which is no longer suitable for consumption.

Waste oil doesn't cost a penny, and it's the most suitable for soap.

Li Jingnan took a beating, frowned and muttered, "I am the prince", and then shrugged his shoulders and trotted back to the house, bringing out the waste oil that Hua Qingxue said.

Hua Qingxue added oil to the completely dissolved sodium hydroxide, stirred it with long chopsticks while adding it, and changed it to Li Jingnan when he was tired of stirring.

"Don't change directions, keep going in one direction."

The two of you change me for a while, and I change you for a while, and after about a quarter of an hour, the things in the pot have become like milk tea, and there is no oil on the surface.

Hua Qingxue took out a few large bowls, arranged them in a row on the side of the pot, and poured the contents of the pot into the bowl one by one. After doing all this, Hua Qingxue clapped her hands and said, "Okay! Put it under the eaves in a place where the sun can't get it, and it will dry tomorrow, and then you can cut it into small pieces. ”

Li Jingnan looked forward to it, "Will you become a pancreatic tomorrow?" ”

Hua Qingxue smiled, "Hmm! But you have to wait a month before you can use it, and the longer you put it, the harder it is, the better it will be! ”

Li Jingnan was shocked! "What are you doing! How could those Liao soldiers wait for you for a month?!! ”

Hua Qingxue turned her head to look at him, looking dumbfounded, "I didn't plan to use the pancreas to wash those military clothes......"

Soap can only be used if it is left for a long time, and one month is already the shortest time estimated by Hua Qingxue, even in the modern industrial era, the best time to sell handmade soap is three to six months after it is made.

Of course, if it is a machine-produced soap product, there is no need to wait for such a long time, and the price will be much lower than that of handmade soap.

The price of a commodity is always closely related to two things, one is the scarcity of its materials, and the other is the short time it takes to make it.

Li Jingnan sometimes really feels a headache for Hua Qingxue's slow half-beat brain circuit!

He said anxiously: "Since these things are not used for laundry...... So why are you working so hard?! Aren't you afraid that if you can't wash your clothes, they will give you a knife?! ”

He wanted to say: when is this now! How do you still have time to play pancreas? Yes?!

Hua Qingxue is not slow, she is very smart, and she always has countless inexhaustible scientific knowledge in her head, but the problem is - her thinking and cognition are different from Li Jingnan.

She must find a way to settle down here as soon as possible, so that she can live well after escaping from Li Jingnan.

Ren Qiu is too chaotic here, she hasn't had an accident so far, except that she is very careful, it's more luck.

The chaotic security, the fluctuating prices, and the tense and oppressive atmosphere that pervades the city all the time make her want to go out of the city all the time......

Hua Qingxue began to clean up the pots and pans, preparing to make another pot of soap mixed with sulfur, while answering Li Jingnan: "Their clothes don't need this, they only need to dip potato flour in vinegar and apply it directly to the bloody places...... If it is not clean, it is enough to rinse it again with boiling water on rotten radish. ”

Li Jingnan glared, "It's that simple?" ”

Hua Qingxue spread her hands helplessly, "Otherwise, how difficult do you think it can be?" ”