Aunt Yang's eyes darkened: "Potassium permanganate, what is this? It's sweet, I don't understand what you're talking about, aunt."
Gan Tian thought for a while and changed it to a more understandable term: "It's the kind that doctors prescribe when treating hemorrhoids during sitz baths? Think about it carefully, has anyone ever been to the hospital and prescribed this? The doctor asked him to take a bath.
If you pour some water into it, it will turn into a purple-red liquid. It can reduce inflammation and relieve itching. Take a sitz bath for a few minutes and the itching will go away.”
The villagers at the scene shook their heads, not wanting anyone to know their privacy:
"I don't have hemorrhoids!"
"Me neither, don't know, don't know!"
However, some uncles and aunties at the scene tried hard to recall in their hearts that the medicine prescribed by the doctor to treat hemorrhoids was indeed purple-red when poured into the water, which was similar to the phenomenon when the young man fell down just now.
Gantian sees through it without saying it, but there are many people who have never suffered from hemorrhoids. Gantian puts it another way: "It's the solution we give to watermelons and winter melons to treat fusarium wilt. Rice seeds and cabbage seeds are soaked in potassium permanganate for ten times."
Minutes, it can be disinfected and sterilized by rinsing it clean, haven’t uncles and aunties used it before?”
Aunt Yang suddenly realized: "So that's it. I have a bottle at home, which is used to disinfect seeds. It can also cure rice blast, tomato virus disease, watermelon wilt, and Chinese cabbage soft rot. It is non-toxic and tasteless.
Very useful.”
Other villagers also echoed: "I also have rice seeds soaked in that thing, which can increase the germination rate. It is said to kill the germs attached to the surface of the seeds. The key is that it is very cheap!"
When it comes to crops, the villagers have practical experience.
"So, it's really not dirty water with a lot of bacteria?"
"Then it doesn't kill all the bacteria, leaving no trace behind?"
"But the water is indeed clear, so what's going on?"
The villagers started discussing again, eagerly waiting for Gantian to tell them the truth.
Gantian said: "It's actually very simple. Potassium permanganate and vitamin C, or potassium permanganate and oxalic acid and other reducing agents will undergo an oxidation-reduction reaction, which will discolor the color and turn it into clear water. There should be a reducing agent hidden in his body, so when no one is paying attention,
It's just poured in, it's just a trick."
The young man selling the goods was furious when Gan Tian exposed the truth. He rolled up his sleeves and rushed over to beat Gan Tian.
"You girl, you're full of vitriol, let's see if I don't smash your mouth!...Ah...it hurts, it hurts! Let go, let go!"
He looked fierce and raised his hand to teach Gantian a lesson, but Gantian grabbed his wrist, locked his other arm behind his back, raised his leg and kicked him hard in the knee, instantly forcing him to kneel on the ground on one knee.
The young man wanted to resist but couldn't get rid of Gan Tian. He was so angry that he shouted angrily: "Bitch, let go!"
Gantian seemed not to hear, restraining him with one hand, and fumbled around in his pocket with the other hand, and finally found two vitamin C injections in his trouser pocket.
Gantian lowered her head and looked: "It is indeed vitamin C!"
Gan Tian kicked the liar away and held two small vitamin C injections: "Did you see it? He had a vitamin C injection hidden in his pocket. The secret of turning the purple-red potassium permanganate water into clear water is
This little vitamin C injection is not some kind of functional underwear. If you don’t believe it, someone can go home and get a bottle of potassium permanganate, and I’ll verify it on the spot for everyone to see.”
Some villagers came closer to look at the small potion, and it actually said Vitamin C Injection.
"Is it really vitamin C?"
"Why does vitamin C turn potassium permanganate water into clear water?"
"I, I, I, I'll go home and get it, I'll be right back!"
The villagers whose homes were nearby rushed home.
The young man, who was kicked to the ground by Gantian and could not get up, wanted to run away, but was quickly subdued by the villagers.
Another young man who wanted to drive away was also stopped by villagers.
When the villagers got back a bottle of potassium permanganate, Director Jiang and the photographer also arrived. Director Jiang gave the photographer a look: Take the picture for me!
At this time, Gantian asked someone to fetch a basin of water from the well at the entrance of the village. She poured the potassium permanganate that the villager brought from home into the basin, stirred it with a wooden stick, and soon the water turned purple.
liquid.
The names of the villages surrounding her suddenly became clear.
"Mr. Gan's little granddaughter is right. It's really potassium permanganate, not dirty water full of bacteria. We were almost deceived!"
"No, I'm ready to spend money to buy two pairs of underwear."
Gantian broke open another bottle of vitamin C injection, poured the injection into the water, continued to stir, and said to the villagers who were watching: "Look, everyone, will the purple-red liquid turn into clear water?"
After a while, exclamations came from the scene.
"Changed! Changed! Really changed!"
"What's going on? How amazing?"
"It turns out that the secret is really not in the underwear, but in the vitamin C injection. It's sweet. Tell us, why is this?"
It must be said to prevent more people from being deceived.
Gantian said: "The principle is very simple. It is a little chemistry knowledge that middle school students understand. Vitamin C and potassium permanganate are just oxidized and reduced. Vitamin C contains carboxyl groups and has reducing properties. The manganese in potassium permanganate is +7
Valence, strong oxidizing property, the two undergo an oxygen reduction reaction, the manganese ion changes from +7 to +4, and the solution changes from purple to colorless.”
Many villagers present nodded in understanding.
Gantian said: "It doesn't matter if you don't understand. As long as everyone knows that potassium permanganate and vitamin C can fade when mixed together.
Draw inferences from one example and apply it to life. If you accidentally stain your hands or clothes when using potassium permanganate in the future, just soak it in vitamin C water and it will fade quickly.
If you accidentally ingest potassium permanganate, you can also take a large dose of vitamin C for gastric lavage to relieve potassium permanganate poisoning.
Even if someone's white shirt turns beige after being worn for a long time, you can first soak the clothes in potassium permanganate water for two hours, then wring the clothes dry, and continue soaking in vitamin C water, and they will soon be healed.
It can be restored to white, which is a perfect whitening artifact."
After hearing this, the villagers expressed that they had gained more knowledge!
Netizens in the live broadcast room also liked it one after another.
[Vitamin C and potassium permanganate, is it so simple? Please bear with me, get it, it’s amazing!]
[My son did this little experiment in kindergarten. These two scammers are so abominable. They used things that even a child knows to deceive an old man from the countryside!]
[Using iodophor + vitamin C can also fade the color.]
[Pinch a kiwi fruit, or a lemon, the same goes for it. The last time my hands were soaked black by potassium permanganate, I washed them with lemon and the color faded.]
[I hate these people who go to the countryside to sell goods and deceive the elderly the most. In the past, everyone didn’t know what tricks those scammers used. Now Shili Marshmallow makes the scammers reveal their true colors on the spot. Haha, I am so happy! 】