Release that Witch Chapter 287: Preparing a soap factory

Western Region, Border Town.

The washing stones purchased from Silver Light City are full of four ships, and it took days to unload them.

Now that there are enough ingredients, it's time to officially put the soap production plan on the agenda.

The supporting workshops and warehouses have already been set up. The soap factory is located next to the industrial park, next to the No. 2 steam assembly factory, and the shape is exactly the same. The roof, beams, and wall panels are all wooden structures with a size smaller than one circle. In addition, the wood cutting and hoisting work is all under the responsibility of witch, so the construction period took only a week.

The use of washed stones, or trona, to make soap is essentially a series of chemical reactions. The required raw materials are also very common. In addition to soda ash, a lot of lime milk and oil are also required. Among them, the milk of lime is a suspension of lime immersed in water and precipitated on the bottom of the container, which is used to react with soda ash to generate caustic soda, and then reacted with caustic soda and oil to form higher fatty acid salts and glycerin. The former is soapy, while the latter is an extremely explosive raw material for important.

Roland has already tested the full reaction process in the castle backyard when making soap before. The principle is basically the same, but to expand a small number of trial productions into mass production, it is still necessary to formulate reasonable processes and specifications. What is more, important requires professional chemical personnel to guide production.

To this end, he called the chief alchemist into the office.

"Her Royal Highness, I have thought of a possible solution for the large-scale production of sulfuric acid you requested." As soon as I entered the door, Cam Schuire shouted, "But this requires a large amount of lead, and the lead is made into a container. Blacksmith, I heard that someone in your witch can accurately cut the metal. She made those rumbling iron golems. Can I ...?

"Of course, report to me the shape and size of the container you requested, and I will tell Witch Union to do it," Roland beckoned him to sit down, "I didn't come to you today to make acid, but to another Tasks. "

"My Highness, I really can't spare time for other things recently," Cam shook his head again and again. "Large-scale acid production is a difficult challenge, and I must go all out." He paused, added "Neither the disciples, they are helping me prepare for this, none of them can leave."

"Do n’t worry, it wo n’t take you much time," Roland drank tea, "and you do n’t need to transfer your proud disciples to take charge, just a few apprentices."

"Then ... what is the mission?"

"Making soap is a cheap version of soap in the convenience market. Except for its taste, it has the same function as soap and can be used for bathing, washing clothes, and cleaning tableware."

"Is the saponification reaction mentioned in «Elementary Chemistry»?" Cam stroked his beard and said, "The one that reacts with sodium hydroxide and oil to form alcohols and salts?"

I have to say that hearing a standard chemical noun from a alchemist mouth is a very strange feeling, especially the term was coined by myself. Roland held back a smile, nodded solemnly, "Yes, it is the saponification reaction recorded in ancient book. I also figured out how to make soap based on it."

"So what do you need me to do? If it is not important, I suggest to put it into production later. After all, even if your citizen does not take a bath for several days, there is no problem. Clothes and plates are directly in the river The bubbles are just fine. "

"It is very important," the prince emphasized, "or, the soap is not important, but the by-products in the production process are what I urgently need."

"You mean ... alcohol?" Cam dismissed it.

"Yes, it is alcohol, you can also call it glycerin." Roland said, "It is an extremely important raw material, its significance is not less than two acids."

"Okay," Cam Schuire shrugged. "But, okay, I don't have time to implement it myself."

He exhaled softly, and dealing with the chief alchemist was really tiring. "You just need to pick out a few smart apprentices and demonstrate then it will be alright in front of them. I will recruit some citizen for production, but After all, they do n’t know anything about chemistry, so someone has to check every link. ”The prince paused for a moment.“ You can also think of it as a chemical experiment that has never been practiced. If you put it in alchemical workshop, this process can mean several alchemy formulas. The discovery is enough for an apprentice to get the title of alchemist. "

Probably the last sentence persuaded Cam, "Since that's the case, I will spend an afternoon teaching the content you have arranged to the apprentices."

"Very good," Roland smiled, "You should also know that the most important in the production process is to make a sufficient amount of sodium hydroxide," he wrote the reaction formula on paper before the synthetic alkali process was invented, Petronas is the most important alkali-making raw material. The main component of the latter is sodium bicarbonate, which can be decomposed into sodium carbonate, carbon dioxide and water by heating. Because the raw materials are abundant and the process is simple, it is still used until modern times. "The washed stone can be decomposed by heating, dissolved in water, and filtered to obtain a relatively pure sodium carbonate solution."

"Next use it to heat with lime milk to get a sodium hydroxide solution. The purification method should be easy for you to think of," he wrote as he explained, "clarify, distill, mix, and repeat this step. Until the solution concentration can precipitate a large number of crystals after cooling. "

These are the contents involved on «Elementary Chemistry». Due to the many nicknames of the two alkalis, it is very easy to be confused (such as caustic soda, tartrine, soda ash, soda, baking soda, soda, etc.), and it is the knowledge point of the exam important I didn't memorize the textbooks, so I still remember them clearly.

"I see," the chief alchemist looked at the reaction from beginning to end, "but, Your Highness, what about grease?"

"I will arrange for these materials to be delivered to you." Animal oils were still expensive in this era, but after the last personal guard seed purchase tour brought olive tree seeds from Fallen Dragon Ridge, Border Town With a reliable source of vegetable oil. Although it is currently only planted on a small scale in the backyard of the castle, it has the ripening ability of Leaf, and harvesting a bunch of fruits a day is not a problem.

The extraction of olive oil is also very simple. After the fruit is mature, it can be produced by physical cold pressing. After filtering through the filter to remove fragments and slag, you can get clear oil.

Finally, the requirements for the preparation of soap and the retention of glycerin were briefly explained before Roland allowed Cam Schuire to leave the office.

In this way, when the soap factory started, he had a stable access to glycerin.

Glycerin means that true smokeless propellant and powerful explosives are also not far away from him. (To be continued., Your support is my greatest motivation.)