Sun Yi and Wang Stuffy walked side by side in the camp. Pen "Fun" Pavilion www.biquge.info

To say that the captain of the guards, the stuffy man, has no consciousness of being a subordinate at all, and he dares to go side by side with Lord Lidel.

However, Sun Yi didn't have the consciousness of being a leader at all, and both of them felt that it was good to walk side by side.

A few farmer men had already helped Sun Yi's collapsed shack to re-erect. The baby was frightened, and Sun Yi asked Yang Carpenter to move near his shack in order to take care of his daughter.

Sun Yi screamed, he wanted to take a walk around the camp, and he needed to sort out his thoughts.

It is necessary to take advantage of their crossing and quickly open up the situation.

The first thing that Sun thought of was soap - the only way to cross the customer to collect money.

The saponification reaction is the content of middle school chemistry textbooks, as long as the oil is decomposed with a little alkali.

Through the novel, the protagonist can boil soap in a pot, give it away first and then sell it, and the big girl and the little daughter-in-law rush to buy it first.

Sun Yi opened his mouth: "Stuffy, what do you use to wash clothes?" ”

The stuffy man replied, "Of course it's water!" ”

Sun Yi smiled and said, "I mean, what should I do when I can't wash it with water?" ”

The sullen said: "Hit with a mallet!" ”

It is indeed feasible to hit with a mallet, and to use a physical blow to get the dirt out of the clothing.

Sun repeatedly asked: "Can't you wash it with a mallet?" ”

The stuffy man replied, "The hungry lady will wash her dirty clothes with water soaked in the ashes of plants and trees." ”

The main component of grass and wood grey water is potassium carbonate, which is a weak alkaline substance that can remove oil stains, and the key is that the cost is zero.

Sun Yi then asked: "Can't you wash it with grass and wood gray water?" ”

The stuffy man replied: "If the ashes of the plants and trees can't be washed, the hungry lady will add a little alkaline noodles." ”

Alkaline noodles are sodium carbonate, also known as soda. Like plant ash, it is a weakly alkaline substance. The use of baking soda to remove stubborn stains, especially oil stains, was also widely used in later generations.

In fact, sodium and potassium are elements of the same family, and their compounds are extremely similar in nature. Sodium carbonate and potassium carbonate are basically the same thing. It's just that the potassium carbonate content in plant ash is far less than the sodium carbonate content in alkaline noodles.

In the Ming Dynasty, alkaline noodles were basically natural products, and Sun Yi estimated that the price of edible alkaline noodles would never be too expensive.

I didn't want to go to a depression, there was a layer of white crystals on the ground of the depression, and the stuffy egg grabbed a handful and said to Sun Yi: "Master, this is alkali." ”

There are many saline-alkali lands in the north of the country, and if you just wash clothes, you can really go to the alkaline fields to pull a little.

However, soap is such a high-grade chemical product, and the decontamination ability is stronger than that of alkaline noodles.

Sun turned on his phone and looked up the soap.

The result disappointed Sun Yi, soap is not a panacea, it can only remove alkaline stains, in other words, oil stains.

Later generations of laundry detergents, laundry detergents, collar cleaners, and detergents are added with a variety of surfactants, enzymes, and bleach, which have a super washing effect.

Moreover, Sun Yi found that the cost of producing soap was high!

The main raw material of soap is oil, animal oil and vegetable oil can be. The second is alkali, the stronger the alkalinity, the better, but the alkali mainly plays a catalytic role, the consumption is very small, and the alkali consumed by a pound of oil is calculated in grams.

Oils and fats are decomposed into soap and glycerol under the catalysis of alkali, so one pound of oil produces one pound of soap at most.

If we consider that the actual production is not a test tube experiment, and the removal of impurities and incomplete reactions are considered, the resulting product will be even less.

In the novel, five catties of soybean oil produce five hundred bars of soap, which is pure nonsense.

The standard soap of later generations was 250 grams per piece. That is to say, one pound of oil can produce up to two bars of soap.

In the actual production of soap, it is also necessary to consume alcohol to mix oil, salt to precipitate soap paste, acid to neutralize the alkali in soap, and various spices to be added.

The soap that comes out of this way is at least more expensive than grease, will anyone pay for it?

Sun Yi cautiously asked the stuffy egg: "If you can wash your clothes with grease, will anyone use them?" ”

The sullen replied very directly: "Unless someone loses their mind!" The oil is not enough to eat, and the lamp is reluctant, who will use it to wash clothes! ”

The stuffy guy is right!

Historically, when soap entered China, it was because of its cost that limited its sales.

The earliest reliable record of soap's entry into China is found in 1854 when British merchants advertised in Shanghai for the use of foreigners living in Shanghai. Then, in 1860, some foreign firms in Shanghai began to purchase goods in bulk and sell them to various places.

After the soap was imported into China, it was called "pancreas" by the northerners, "maple" by the southerners, and "soap" by the Yangtze River basin. Until the late 1890s, although soap was sold in Chinese shops and stalls, it did not replace traditional detergents, and for ordinary Chinese, the use of soap was a high-end consumption.

In 1888, a British merchant wrote a business report detailing the sale of soap in Canton and the cherishing of it by the Chinese: "Another commodity that can now be seen in every Chinese store is soap. Even in small stalls, you can see soap bars at a lower price. There should be a large market for soap here, because the quality of local goods is very bad. But I didn't understand that there would be a need for the fine soaps that I saw in stores. Because except for a few Western servants, I have never met a Chinese who use soap to wash their faces and hands, naturally there is no soap in the bathhouse, perhaps noble women will use it, otherwise unless it is regarded as an antique, it seems to have no future. ”

In 1889, the number of soap imported at the port of Guangzhou was 4,365 boxes, worth 2,334 pounds, which was very little for a large trading port like Guangzhou, which radiated the whole of South China.

Also in 1889, small boxes of fine soap for travelers, possibly soap, appeared on steamships and hotels in Canton. This packaging method itself shows that soap has not been closely related to the lives of ordinary people for a long time.

In the same year, a foreigner traveling in the Yangtze River basin saw a bar of soap being cut into 32 pieces and was being sold.

The real acceptance of soap by the Chinese has been in the Republic of China for 50 years.

The high-end detergents that really occupied the market in ancient China were actually soaphorns with similar functions, low prices, green and harmless and non-irritating.

Even in later generations, many people began to abandon chemical detergents in favor of traditional soaps.

And the processing of soaphorn is really too simple to be simple.

Sun Yi's mother's recipe is:

Long soap horns, round soap horns (soapberry) are crushed, soaked in water for about half an hour, and then boiled in the pot for two hours to filter out the slag, cool is the best shampoo, dishwashing liquid.

According to Sun Yi's mother, soaphorn shampooing does not hurt hair, is not irritating, and also removes dandruff.

If it is paired with Polygonum multiflori, arborvitae branches, and tea seeds, it is a traditional Chinese medicine shampoo.

――In short, no one buys soap for crossing.