The most trustworthy people Zhang Forget can trust at the moment are ten domestic servants with different skills and ten maids who can knit female celebrities recruited from Huayin County. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

They signed a slave deed, took their families, and came to Luoyang away from Huayin, enjoying the good treatment of high monthly money and free education for their children, but also did offer undoubted loyalty to Zhang Wang.

Ten servants and ten maids lined up, staring at Zhang Forget with nervous faces.

Their families scattered in all directions, surrounding the entire house. Zhang Forget wants to teach their family the ability to earn up to 800 million yuan a year, which is not ambiguous at all, and must protect the secret, and no one can be allowed to have the opportunity to steal the school.

Wang Yue took his daughter Wang Rao and his apprentice Ma Bao and stood on the left side of Zhang Wang. Douzi, Zhang Hong, and Chun Yuyi stood on the right side of Zhang Wang. The small leader Zhang Mane and fifty Yellow Turban soldiers were arranged to go out on patrol early in the morning.

Zhang Forget glanced at the quiet crowd and asked, "These days, I have asked three hundred family members of the nursing home to boil alkali on the saline-alkali land day and night, do you know what I am going to do with these things?" ”

Everyone was shaking their heads, but Wang Rao interjected: "Do you want to refine the elixir of immortality?" ”

Zhang Wang's mouthful of old blood almost spurted out, and said in his heart Refining your sister's Dan, alkali is to be used to make caustic soda, really refining the elixir of immortality, do you dare to eat it?

Glaring at Wang Rao, who was uneducated, Zhang Forget said: "Whether we can make 800 million money in a year depends on these things." ”

Everyone looked at each other in amazement, and found that there was a look of disbelief in each other's eyes.

The things boiled in the saline-alkali land everywhere can earn 800 million yuan a year? That's an exaggeration, isn't it?

Zhang Wangjian successfully aroused everyone's appetite, so he continued: "Alkali is a thing that can be used in a wide range of uses, such as tanned leather, glass, steamed buns, and printed books. Don't ask me what glass, steamed buns, or printed books are, and we'll talk about them later. What we are going to use today is not the soda ash on the ground, but the caustic soda obtained by the further reaction of alkali and hydrated lime. ”

As he spoke, Zhang Wang pointed to another car of slightly different white powder at the corner of the house, and said to everyone: "Caustic soda is made of alkali, which is more corrosive and more versatile, and can be used in soap making, textile, printing and dyeing, bleaching, papermaking, oil refining, metallurgy, fertilizer, ceramics and many other aspects, oops, it really makes people drool when they think about it......"

Zhang Forget said this, looked up, and found that everyone looked like they didn't know what he was talking about, so he had to sigh helplessly, and said concisely: "Take soap making as an example, caustic soda and lard are mixed to get soap, soap is a thing that is several times better than soaphorn and pig pancreas." A pound of lard costs three or five yuan, but it can make two pounds of soap, and after selling it, you can earn almost two hundred yuan. ”

When everyone heard this, they all gasped, soap is something countless times better than soap? A pound of lard worth three or five cents can be made into soap worth two hundred cents? Oh my God, that's a fifty times the profit!

Douzi was surprised: "Why can one pound of oil produce two pounds of soap, this is not reasonable." ”

"That's a good question."

Zhang Wangxiao touched her head with a smile and said: "The production principle of soap is through caustic soda, and after the saponification reaction, sodium ions are used to replace the glycerin and water in the fatty acid glycerides. The atomic weight of sodium ions is 23, and the molecular weight of glycerol is 92......

Well, look at your eyes, it seems that you can't understand, then I'll talk about something you can understand, soda ash and grease reaction, to create pure soap, when we go out, we have to add water and some other binders and emulsifiers, in this way, a pound of soap contains only half a pound of pure soap, a pound of grease can naturally produce two pounds of soap.

Seeing that the surroundings were still silent, Zhang Forget was completely speechless: "Okay, let's not talk about theories, I'll just show you how to make soap." ”

Everyone finally breathed a sigh of relief, and even the erudite Zhang Hong looked much more relaxed.

"I'm going to show you how to get soap from grease and how to add additives such as pinesin and sodium silicate to soap to make soap that can be taken out. This is a craft that can be passed on to future generations, and when I die, you can pass it on to future generations, so as to ensure that your children and grandchildren will be rich and prosperous throughout their lives, and they will have no worries about food and clothing. ”

Everyone was very excited when they heard this, but Zhang Hong asked meaningfully: "Xiao Langjun, should I avoid such confidential matters?" ”

It means that I have no relatives with you, and I am not a master and servant, what do you think about teaching me the means of making money that can make fifty times the profit?

Zhang Forget pretended to be unhappy and said: "I treat you as my own family, what are you doing with me like this?" Friends have the meaning of wealth, I teach you a craft to make money, why not? In the future, when you are an official, you can use this method to make money, and then build bridges and pave roads, reclaim wasteland, dig ditches and canals, and benefit the people. ”

When Zhang Hong heard this, he was a little moved and a little surprised, how did Zhang Forget know that his wish was to benefit the party for the first term of office?

Zhang Forget didn't allow him to speak, and directly started to operate. Just kidding, you still want to run when you get to my house? Running away from the Dong brothers is enough for me to feel heartache, and if I run away again, I will vomit blood.

When everyone saw that Zhang Forget was starting to come to the real thing, they all held their breath and stared at him without blinking.

In order to allow everyone to learn as soon as possible, Zhang Forget did every step very carefully, and at the same time explained his behavior in detail.

"The grease is first heated to melt, and then the caustic soda and water are mixed in proportion, and after stirring evenly, the caustic soda solution is made."

"Mix oil heated to about thirty or forty degrees with a caustic soda solution at the same temperature, stir slowly for ten minutes, let them fully blend, and it becomes a thick soap like yogurt."

"This is the soap mold I prepared in advance, gently pour the soap liquid into it, add the emulsifier and binder I prepared in advance, shake the mold or tap the mold lightly, so that the bubbles float out."

"After the soap has cured, it is taken out of the mold, cut into small rectangular pieces, and dried so that it can be sold as a finished product. Cold soap usually requires a dry and ventilated environment for one or two months to dry the soap. ”

Zhang Forget carefully demonstrated three times, and explained some safety matters that needed attention, and then asked the servants and maids to start operating on their own.

He himself carried a bucket of soap and led the group of people who were really close to him back to the study.

Everyone knew that Zhang Forget had the following, and couldn't help but secretly smack their tongues, they already had soap fifty times the profit, wasn't it enough? What else is Zhang going to do?

Zhang Forget led everyone into the study, and said endlessly: "Ten catties of lard and twenty catties of soap are not too profitable business. To make more money, we need to use hydrochloric acid to break down the soap and remove stearic acid from it, which can be used to make candles or batik cloth, which is much more profitable than simply making soap. ”

"Candles? Batik? ”

Hearing unfamiliar words spit out of Zhang Che's mouth, everyone couldn't help but blush at their ignorance.

Zhang Che said with a smile: "It is recorded in the "Xijing Miscellaneous Records": 'The king of Minyue presented 200 honey candles to the emperor, and the emperor was happy. This candle, a type of candle, is made of beeswax. Beeswax is a fatty fluid secreted by the beeswax glands of workers about two weeks old, which condenses into scales when exposed to air, and these scales come together to form beeswax. ”

Wang Rao exclaimed, "Oh my God, how many bees do you have to raise to get the beeswax to make 200 honey candles!" It is no wonder that the king of Minyue offered beeswax to the emperor, and the emperor would be happy. ”

Zhang Forget smiled and continued, "There is also a kind of wax that is secreted by the ash insects on the ash tree. Ash worms live on tree trunks, eat tree sap, and secrete ash. Beeswax and ash are rare in the world, not easy to obtain, and the cost is too high, so it is difficult to use them to make a fortune. We can use hydrochloric acid to decompose the soap made from animal fat to make wax that is better than beeswax and white wax. ”

Although beeswax and white wax appeared in the Han Dynasty, the candles made were paste-like and had to be melted and used as flame-resistant grease. Because beeswax and ash materials are not easy to obtain, and the wax-making process is extremely complicated, the yield of wax is extremely low and ridiculously expensive, and only princes and nobles can afford to use it.

Kou Zhun, the prime minister of the Northern Song Dynasty, went to the toilet to light candles, and was criticized by the people at the time for his extravagance! The root-shaped candles that were common in later generations did not gradually enter the homes of ordinary people until the Ming and Qing dynasties.

Zhang Forget is very sure that once his stearin candle is made, it is definitely a simple thing to make money.

"I will show you how to make wax from soap, which is another craft that can be passed on to future generations, and when learned, it will ensure that your descendants will be more prosperous and powerful."

Zhang Wangfu finished speaking seriously, laughed, and began to operate in person.

During the Han Dynasty, Taoist priests had already learned the method of obtaining sulfuric acid by dry distillation of stone gallbladder during alchemy, and the reaction of sulfuric acid with salt to obtain hydrochloric acid. It was not until the eighth century that the Indians mastered this technique of making sulfuric acid, and the wisdom of the ancestors made people proud until a thousand years later. (The specific method is not detailed here, so as not to harm others)

Zhang forgot not to tell everyone how to make hydrochloric acid, because once the secret recipe for making soap was spread, he would have to rely on the monopoly of candle-making methods to earn money and pay off debts.