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Chapter 33 A little test (4)

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    "Come on!" Chen Wanrong knew that Chen Zairong was very curious and motioned for him to take action.

    With Chen Wanrong¡¯s permission, Chen Zairong said, ¡°I¡¯ll add it,¡± and threw the soda ash in his hand into the bucket. There was a soft sound and water splashed everywhere.

    "You're not being gentle either." Chen Laoshi looked slightly displeased.

    Mrs. Chen Wang caressed Chen Zai Rong's shoulder and said, "Zai Rong, use less force. Water will splash everywhere. Be careful of splashing on people."

    Chen Wanrong had to teach Chen Zairong the key points again. He grabbed a handful of soda ash and sprinkled it evenly in the bucket: "Spread it like this, spread it evenly. Don't use force, just sprinkle it down."

    "There are stones, there are stones! There are really stones in the water! It's really amazing!" Chen Zairong pointed to some calcium carbonate precipitates in the bucket in surprise, his eyes widened like copper bells, just like Chen Laoshi who saw this scene for the first time yesterday.  The expressions are exactly the same.

    The chemical reaction between hydrated lime and soda ash is very fast and completes instantly. It is called an instant reaction in chemistry. Calcium carbonate that is slightly soluble in water appears in the water instantly and floats in the water due to its low solubility.  But Chen Zairong screamed loudly, as excited as a playful child who suddenly has a favorite toy.

    "Keep your voice down, your ears are deafened." Chen Laoshi scolded and began to lay out the master's music: "If it's not magical, can it be called a magic? Turning soda ash into irrelevant stones, this is the magical effect of magic!  Wanrong, right?" Looking at Chen Wanrong, eagerly expecting Chen Wanrong's confirmation.

    The main component of limestone is calcium carbonate, and the calcined quicklime is calcium oxide.  Quicklime reacts with water to produce hydrated lime and calcium hydroxide, and hydrated lime reacts with soda ash to produce caustic soda and calcium carbonate, and it's back to the starting point.  The saying that rocks grow in water is actually true.

    Chen Laoshi plagiarized Chen Wanrong's statement to stage the show, pretending to be a master, which made people laugh. Chen Wanrong complied with his wishes: "Dad, that's it."

    "Old man, you are a stupid big-tailed maggot. Who doesn't know this? I know it too." Mrs. Chen Wang rolled her eyes at the drunken Chen Laoshi.

    Chen Laoshi's face was a little confused: "I didn't tell you." He moved a few steps away from Wang Chen.

    Chen Zairong's understanding was very good, and he understood the trick immediately: "Brother, I understand! This is similar to making batter. When making batter, you have to spread the flour evenly, otherwise lumps will appear."  He picked up a handful of soda ash and sprinkled it evenly in the bucket. Although he had only practiced once, he was as experienced as a master craftsman.

    Making batter in rural areas requires a lot of skill. If you know how to make it, a bowl of batter will come out with no lumps and is delicious.  However, for those who don't know how to cook, lumps will appear if the flour is not spread evenly. When you bite it, there will often be a porridge sound, and a ball of flour will appear in front of your eyes, as if it is snowing.

    This metaphor is vivid and vivid, especially suitable for farmers to understand. Chen Laoshi complained: "Wanrong, you didn't tell me earlier, such a simple thing." He grabbed a handful of soda ash, rolled up his sleeves, and sprinkled it in the bucket, as if making batter.  Similar.

    With his neck stretched out, his eyes widened, his sleeves rolled up, and his left hand on his waist, Chen Laoshi really looked like a master.  Chen Wanrong was secretly amused. He picked up a stick and stirred in the bucket. Without stirring equipment, he could only use the "fully automated" method of human labor.

    Looking at Chen Laoshi's appearance, Mrs. Chen couldn't help but curl her lips and click her tongue in disdain.

    Chen Wanrong was responsible for stirring, Chen Laoshi and Chen Zairong were responsible for spreading soda ash, and Chen Wang was responsible for visiting. More and more calcium carbonate precipitated and the barrel began to become turbid.

    I did an experiment yesterday. It didn¡¯t take much time and was completed in just a few moments.  Today is about actual production and making products, and the gap between them is huge.  Such a turbid solution had not appeared yesterday. Chen Laoshi gasped in surprise: "Wan Rong, what's going on? There weren't so many stones yesterday? Wan Rong, your spells are getting more and more powerful."  He was very polite, with a look of admiration on his face, as if a believer had met a god.

    It's all the same chemical reaction, the only difference is the amount. Chen Laoshi actually praised it so much. Chen Wanrong was afraid that he would misunderstand, so he hurriedly clarified: "Dad, they are all the same. Yesterday I did less, today I did more, the difference is  Here, it¡¯s like the difference between a small bowl of porridge and a large pot of porridge.¡±

    "Porridge?" Chen Laoshi patted the bucket thoughtfully and looked at Chen Wang with a trace of worry in his eyes.  Wang Chen glared at him and shook his head slightly, as if to convey some message.

    "Mom, did you bring the rice bucket?" Chen Zairong looked at the barrel in surprise: "I thought this bucket looked familiar. I couldn't remember it for a moment, but I remembered it as soon as dad patted it. Mom, is there no rice?  Already?"

    Chen Laoshi's face darkened, and before he could speak, Chen Wang took over: "Zairong, what nonsense are you talking about? WanrongIf we need a bucket, we put the rice in a bag and free the bucket for emergencies.  "

    Although Chen Laoshi is good at woodworking and makes a lot of barrels all year round, he has no barrels at home except a rice barrel.  "Weaving mats, sleeping on bare beds; selling salt, drinking weak soup", this is a portrayal of life in a poor family.

    Chen Zairong didn¡¯t believe it and asked, ¡°Mom, are you not lying?¡±

    Chen Wanrong knew that no matter whether his guess was true or false, he couldn't admit it now. If there was really no rice, he would stop studying for fear and said with a smile: "Zai Rong, don't make random guesses. How can there be no rice at home?"  "I've been at home all day, and I don't know if there's any rice." In order to convince him, she raised her voice a lot and said it so categorically that anyone would believe it.

    Chen Zairong said oh and stopped talking.  Chen Laoshi and Chen Wang looked at each other and secretly breathed a sigh of relief.  Chen Wanrong saw this and thought that Chen Zairong's guess was probably true and he had to find an opportunity to confirm it.

    In order not to bring in slaked lime, soda ash should be used in excess.  Excessive soda ash is not harmful and can still be used to treat skins. If too much slaked lime is used, something will happen. Chen Wanrong estimated that it was almost done and asked Chen Zairong to stop.  After stirring for a while, he tapped the stick on the edge of the bucket and put it aside.

    Chen Wanrong knows a lot about separation technology, but currently there is no equipment, so he can only use the most primitive method: standing still.  If you don't stir the solution, the calcium carbonate precipitates will sink to the bottom of the barrel after a while. At that time, you can ladle the caustic soda solution into the pot and heat it.

    "Wanrong, is it time to stir up trouble?" Chen Laoshi rubbed his hands and asked Chen Wanrong for his opinion.

    It was indeed time to prepare the pot. Chen Wanrong nodded: "Yes, Dad."

    "There are no extra pots at home, so I can only use the cooking pot, the big one." Mrs. Chen Wang also came to seek Chen Wanrong's opinion: "Wanrong, do you agree?"

    This is an extremely poor family. There is no extra pot at home, and even if you want to buy it, you don't have the financial resources to buy it. You can only make do with the cooking pot. Chen Wanrong didn't say a word: "Okay."

    Chen Zairong rushed to work: "I'm going to wash the pot."

    Chen Wang held him back: "I've washed it, let Wanrong see if it's suitable for use. Yesterday I saw that you washed the barrel for so long, it must be clean. I washed it for a while, I'm afraid it didn't suit Wanrong's taste.  , Wanrong, go and have a look."

    She was so attentive, she had thought of everything, and she had done all the preparations well. Chen Wanrong felt warm in his heart, and said thank you: "Thank you, mother!"

    "Thank you very much? Just a little hand work." Mrs. Chen Wang smiled, so happy that even the wrinkles on her face disappeared.

    When he came to the kitchen and took a look, the three-foot large pot was cleaned cleanly and looked very refreshing. Chen Wanrong couldn't help but praise: "Mom, you cleaned it really well. It's very useful."

    "I was afraid that it wouldn't be clean, so I added some soda ash." Chen Wang was reassured by Chen Wanrong's affirmation.

    Chen Zairong grabbed the edge of the pot and lifted it up. A black hole appeared on the stove.  Chen Zairong rushed out of the house as if he was flying. Chen Wanrong and the other two chased after him but could not catch up.  By the time Chen Wanrong and the others arrived at the field, Chen Zairong had already placed the pot on the stove hole and set it up.

    Mrs. Chen Wang dragged Chen Laoshi to go pick up the firewood. Chen Zairong rushed to say, "Mom, you guys rest, I'll go." Without waiting for Mr. Chen to express his position, he jumped out of the way.  Looking at his back, Mrs. Chen Wang was very happy: "This child!"

    When Chen Zairong turned around, he had a large bundle of firewood in his hand. He put it in front of the stove, turned around and stood by the bucket and looked into the bucket.

    After a while, the solution in the bucket has clearly separated into layers. The upper layer has become clear, but the lower layer is still turbid.  Chen Wangshi and Chen Laoshi came around and looked into the bucket, like anxious greedy cats staring at the fish, wishing they could let it rest immediately.

    Half an hour later, the calcium carbonate settled to the bottom of the barrel, stacked like sediment in a river. Chen Wanrong said, "It's done."

    This was what Chen Zairong was waiting for. He grabbed a ladle and scooped up the clear solution and poured it into the pot.  Mrs. Chen Wang was busy lighting up the fire.  When Chen Zairong finished ladling out, Chen Wang also raised the fire, and the sound of roaring flames came from the stove hole.

    "Why not yet?" Chen Zairong looked anxiously into the pot and asked with a confused look on his face.  (Remember the website address: www.hlnovel.com
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