The middle-aged woman nodded and motioned to the middle-aged man: "Then hurry up, the vinegar in the store is almost running out, you hurry up and mix out the vinegar." Pen Fun Pavilion wWw. ｂiquge。 ｉｎfo”

After saying this, the middle-aged woman's eyes swept over Huo Sining's body, and she seemed to be a little puzzled, but she didn't say much, and turned around and went into the store directly.

Huo Sining jumped out of the car and glanced at the small noodle restaurant, a small shop of less than fifty square meters, with seven or eight tables, but each table was full of people, and it seemed that the business of this noodle restaurant was quite good.

Now Huo Sining also knows what the middle-aged man means by ruining a vat of vinegar, his shop is a noodle restaurant, and he sells Xishan noodles, Xishan people love to be jealous, and it is absolutely impossible to eat noodles without vinegar.

No wonder this middle-aged man would go all the way to buy high-concentration acetic acid, probably preparing to make his own edible vinegar.

It is not the first time that Huo Sining has heard of blended vinegar, although Xishan vinegar is famous, but the Xishan vinegar that is generally bought is actually synthetic vinegar, that is, blended vinegar made by mixing glacial acetic acid and brewed vinegar in a certain proportion.

If you want to buy authentic brewed vinegar, unless you go to the home of a villager who specializes in making aged vinegar, this is authentic and pure handmade vinegar, and there are absolutely no food additives.

So seeing this middle-aged man buying glacial acetic acid blended with edible vinegar, Huo Sining was not surprised, this kind of noodle restaurant is a small business, plus the daily traffic is so large, the possibility of using brewed vinegar is very small.

What is the harm of blending vinegar Huo Sining is not clear, she is a Bashu person, and she doesn't like vinegar food, so she doesn't care about these, what she cares about now is just the sword she dropped in the bucket of glacial acetic acid.

The middle-aged man over there had already moved the four large barrels of glacial acetic acid from the car, and Huo Sining noticed that there was a yellow corrosive warning slogan printed on the stainless steel barrels.

"Oops!" a thought flashed through Huo Sining's mind, and he suddenly realized that things were not good.

The liquid in this bucket is glacial acetic acid, glacial acetic acid is acetic acid, although it is a weak acid, but it has a corrosive effect on metal, her sword fell into this acetic acid barrel for so long, shouldn't it have been dissolved than corrosion?

Thinking of this possibility, Huo Sining suddenly became anxious, cold sweat broke out in her head, she hurriedly ran to the middle-aged man, and shouted anxiously: "Uncle, can you please take out my things quickly?"

The middle-aged man was still good at talking, and seeing Huo Sining in such a hurry, he smiled, and immediately took a pipe over, and began to lead the vinegar from the stainless steel into another empty barrel.

Acetic acid is volatile, and the liquid is drawn out of the stainless steel and flows out with a loud noise, and in a short time, a strong and pungent sour smell fills the air.

Huo Sining didn't care about this, covering her nose, but her eyes were staring at the stainless steel bucket until the liquid in the bucket was more than half empty, revealing a white cloth bag upside down in the bucket.

Seeing this, the middle-aged man took a rubber glove and put it on, and quickly fished out the wet cloth bag from the barrel.

The middle-aged man was quite careful, after the things were fished out, he grabbed the package and quickly washed it under the faucet, until the high-concentration vinegar was completely diluted, the pungent smell dissipated, and he couldn't smell the smell, so he handed the package to Huo Sining.

The price of edible acetic acid is not high, this barrel of acetic acid is about fifty or sixty catties, Huo Sining estimates that it is only three or five hundred yuan, she said in advance that she would compensate the middle-aged man for a bucket of vinegar, so she was not stingy, and quickly took out five hundred yuan from the bag and handed it to the middle-aged man.

When the middle-aged man saw this, his face suddenly turned red, he was joking with Huo Sining, and when he saw that Huo Sining really gave him money, he was embarrassed to accept it, thinking that bullying a little girl like this seemed a little unkind.

But Huo Sining insisted, stuffed the money into the middle-aged man's hand, and said sorry to the middle-aged man: "Uncle, I'm really sorry, it's all my fault, it caused you a loss, you must take this money, otherwise I really don't want to go." ”

After some shirk, the middle-aged man finally had no choice but to accept the money.

Here Huo Sining took the package, regardless of whether the package was wet and dripping, after saying goodbye to the middle-aged man, she hurriedly walked out, turned a corner, and quickly ran towards an uninhabited alley.

Huo Sining couldn't hold her breath for a long time, and when she realized that acetic acid might corrode her sword, Huo Sining couldn't wait to take off the T-shirt in front of the middle-aged man, but she still held back and withdrew to the alley, but she couldn't care about it anymore, and directly dismantled the package.

With this pull, Huo Sining heard a strange click, and at the moment when she removed the T-shirt, pieces of scattered patina actually fell down the cotton cloth.

Huo Sining was dumbfounded, the patina originally attached to the sword was infiltrated and corroded by acetic acid, Huo Sining picked it with his hands at will, and those rusty shells could be easily peeled off.

However, after a few random strokes, the patina on the sword fell off piece by piece, but the sword body was not damaged, but revealed the deep and gloomy bronze color inside, and the sword qi lingered, forcing the sword qi to rush to the face.

At this time, Huo Sining figured out the reason, this sword was not made of iron, but dark iron, that is, bronze.

This sword is an ancient sword, at least a thousand years old, because of long-term exposure to the air, the bronze came into contact with oxygen and produced a chemical reaction, which caused the surface of the sword body to oxidize, forming a layer of copper oxide shell.

Acetic acid is a weak acid, which can corrode metals such as iron and zinc, and can also react with copper oxide, but it cannot corrode copper, because the metal activity of copper is weaker than that of iron and zinc, so when Huo Sining accidentally dropped the sword in the vinegar tank, the copper oxide on the surface of the bronze sword had a chemical reaction with acetic acid, so that the patina was removed, and the blade inside the bronze sword was exposed.

Huo Sining originally planned to bring the sword to Zhou Shitao and ask Zhou Shitao to help remove the rust layer on the surface of the sword, but she didn't expect it to be crooked, she was busy grabbing the old T-shirt and wiping it on the sword body.

After the bronze piece fell, the center of the sword body that was originally covered by the bronze piece flashed with a trace of golden light, Huo Sining subconsciously looked towards the glowing position, but she didn't expect this look, but she was suddenly startled in her heart, and the hilt of the sword in her hand was unstable, and she almost fell to the ground. (To be continued.) )