Chapter 239 The Art of Salt Purification

Before leaving, Ma Chao did not worry about political affairs at all. He has three counselors, Jia Xu, Fa Zheng and Yang Fu, Wu has a famous general of Pound De, and secretly has an ugly brother to respond. Even the two major forces, Dongqiang and Shenbumen, rely on their arms. It is not a terrible disaster like thunder that can seriously damage the Ma family.

And only Chang'an can create the source of this disaster. Ma Chao entered Chang'an as the head of the Ma family, which was a turmoil for the Ma family, and also a disturbance for the Chang'an court. His trip to Chang'an is not so much a hostage as a must for the development of the Ma family: only by turning the eyes of the Chang'an court to Ma Chao alone can the forces behind Ma Chao get a period of calm development.

Therefore, whether from family hatred or national hatred, it is inevitable for Ma Chao to enter Chang'an.

Before he left, the most reassuring thing was actually those things that changed because of him. For example, new crops, tea-frying technology, distilled wine, steel filling method, improved papermaking, etc. Fortunately, these new things have reached a large scale in Fufeng, and there are also people responsible for taking care of them. Ma Chao is relatively at ease.

But the only thing he can't forget is whether the craftsmen in the arsenal can completely master the salt purification technology...

Before leaving, Ma Chao specially called the three giants of the arsenal: Han Feng, Zheng Hun and Pu Yuan, and showed them a salt purification technology.

In fact, the salt purification technology is very simple, nothing more than a few steps: dissolution, filtration, toxic analysis, evaporation and crystallization...

In Ma Chao's view, this is a small process test, and for the three giants, this is another milestone technology. In particular, Han Feng also knew the huge profit behind the purification of salt. In the name of Ma Chao, Hu faked Hu Wei and mobilized Ma Chao's 200 personal guards to stand guard at the arsenal. His tense appearance was like Ma Chao's gunpowder.

There are everything in the arsenal. Ma Chao ordered a hammer, iron brazed, salt sieve, linen, charcoal, wooden barrels, iron pot, and even five hand-cranked stone mills. Ma Chao checked it and needed a lot.

"Look, your master is delicate and expensive now, and it's a great deal to use it once." Ma Chao said with a smile, carefully smashed a few pieces of salt stone into small pieces with a small hammer, called a bodyguard, poured the salt into the stone grinding eye, and the bodyguard shook his hand and turned the stone grinding. The brown salt powder slowly flowed out from the edge of the stone grinding. Ma Chao put the salt stone powder into the wooden barrel, added water, stirred it with a wooden stick, and let the salt fully melt into the water. After the solution was saturated, he said, "This is the first step. Dissolve, smash the salt and pour it into the bucket."

Then, Ma Chao poured these solutions into another wooden barrel covered with double-layer linen. After a while, the linen cloth was full of gray-black slag. Remove the hemp cloth, and the solution in the bucket becomes brown. At this time, the color of the solution becomes lighter, but there are still many impurities. Four layers of linen cloth is covered on a wooden barrel. After filtering it again, it leaves a light red solution. Ma Chao took a look at the impurities that had been filtered and told the main points of the process: "This is called filtration. No matter how many times you filter it, it will not be filtered until the color of the solution turns into this light red."

At this time, it still cannot be evaporated and purified, and the toxic analysis stage should continue. Ma Chao took a huge funnel and ordered the guards to smash charcoal. Before the guards did anything, Han Feng, Pu Yuan and Zheng Hun came to the stage in person and smashed the charcoal first. Ma Chao wrapped the charcoal grains in four layers of linen and stuffed them into the funnel. He squeezed them tightly. He found a shelf, fixed the funnel on the shelf and dissolved it. The liquid was poured into the funnel. After a while, the light cyan solution slowly flowed out and tasted it. It was good. It was only salty and not bitter. Although some salt was lost in the process, it could be guaranteed that the boiled salt was absolutely edible.

"This process is the most critical part. Although some salt may be lost during this period, I hereby warn everyone who will sell the salt without going through this step, and don't blame the military law!" When he did this, Ma Chao looked extremely solemn. After all, this is a major event related to the health of the Ma family's shops and the whole Han people.

"Lord, what kind of charcoal is this charcoal?" Han Feng also knew that this link was crucial and raised this very high-level question.

"Well, there is no ordinary charcoal, but it's better to use bamboo charcoal. Bamboo charcoal has a stronger adsorption ability..." Ma Chao nodded and was very satisfied with Han Feng's sharp question.

After that, Tianma Chao ordered the bodyguard to set up an iron pot and pour the solution into the pot to boil. But I'm far away from the iron pot: hot... It's easy to get some salt in this summer.

Looking at the solution bubbling in the pot, Ma Chao was also worried. After all, this knowledge has been talked about in junior high school chemistry. But whether it can be done or not, let's talk about it. After the water in the pot gradually evaporated, Ma Chao left a thick layer of cyan hard shell at the bottom of the pot, removed the firewood, and broke a piece from the pot and still said: "Well, the pure salt taste is not bad..."

Without Ma Chao's order, Zheng Hun and Pu Yuan have broken off a large piece of nails to fill their mouths. Although their salty faces twitched, they were reluctant to vomit... When the rest of the guards saw Ma Chao's signal, a swarm of bees rushed to the iron pot, took down a piece and put it in their mouths. A few guards shed tears and knelt down for Ma Chao one after another and shouted, "The Lord is really a god!"

'God's fart!' Ma Chao didn't agree: Just now, he estimated that the smashed salt block looked like ten catties, but in the end, he only boiled about three catties of refined salt. This loss was really too big.

However, Ma Chao also knows that this is inevitable: it is much better than the people who eat salt by luck... Besides, China has not eaten up salt for thousands of years until its population reached more than one billion in the later period. Maybe I will hit the seaside at that time. At that time, didn't you want to make how much salt?

Thinking of this, Ma Chao ordered Han Feng, Zheng Hun and Pu Yuan: "The three of you have recently put away all the research and development at hand and devoted themselves to the preparation of this salt purification tool. After Meng and Hanzhong reach an agreement, they will carry out large-scale mass production. As for the shipment, it's right to hand over to Meng Da, who has fallen into the eyes of money now!"

"My lord is wise!" The three of them held their fists and were very convinced of Ma Chao's arrangement.

"Bear by the way, bring these samples to Meng Da and ask him to give a price..." Ma Chao clapped his hands and said, "Are all those things ready?"

"Lord, don't worry, the glass happened to be blown up yesterday and has been carefully put into the box. At your instructions, a lot of fur and linen have been specially added to prevent shock..." Han Feng knew what Ma Chao was asking and took a step forward to answer.

"Well, yes, the Ma family has an arsenal, which can reach at least 100,000 troops!" Ma Chao is very impressed: Sure enough, technology is the first productivity! No matter which era, the most scarce is... Talent!

"Those are just colored glass. After someone comes back from Chang'an, I will tell you how to make colorless glass." Ma Chao said that when he rode like a dragon horse and was about to rush back to his backyard, he seemed to remember something and told him, "Remember, glass making is the biggest secret of the Ma family. Be sure to keep it. In addition, don't produce too many glass products, just produce ten pieces a month..."

"No!" Seeing Ma Chao's figure running away, Han Feng, Zheng Hun and Pu Yuan's hearts fluttered: Is it true that the lord has come here from the sky? How can anything strange can be found out?