The chlor-alkali production line designed by Xia Lin has a daily output of 300 kilograms of caustic soda, 600 kilograms of bleaching powder, 250 kilograms of hydrochloric acid, and some calcium chlorate and calcium chloride as by-products, which can also be used in the production of refined salt.

The cost is mainly focused on the consumption of magic stones in the two types of rune disks, and roughly to complete one day's production, it is necessary to consume the equivalent of all the magic power stored in four magic stones.

In addition, about 420 kg of table salt, 370 kg of quicklime as raw material and 200 kg of coal are required to provide the heat to concentrate the refined brine.

Although it seems that the output is not high now, the chlor-alkali method is countless times better than the previous soil calcination, at least a production efficiency problem, which is enough to make the method of soda ash and lime reaction to produce caustic soda disappear in the previous life.

Not to mention that the previous soil method also needed to consider the problem of product separation.

Previously, the caustic soda factory burned the products produced by a round of vertical kilns, and after separation, it was only 40 kilograms a day, which was enough for the soap factory to make more than 2,000 pieces of soap, and it can be said that the output has undergone earth-shaking changes.

The hydrochloric acid produced by the chlor-alkali production line, Xia Lin also has a special use, that is, the hydrolysis of potato starch by using these hydrochloric acid to produce glucose, officially moving towards the direction of organic chemistry.

At the same time, the glucose produced can also be used for the silver mirror reaction to obtain the profiteering product of the mirror.

In the distillery, the distillation equipment designed by Charlin is sufficient to produce an alcohol solution with a concentration of about 90%, and the ethanol can be treated with concentrated sulfuric acid to produce ethylene, which can be combined with hydrogen chloride gas and oxygen to produce an extremely useful product, namely polyvinyl chloride, also known as plastic.

With plastics, then the winter greenhouse is no longer a dream, PVC pipes, plates are very resistant to acid and alkali, the chlor-alkali production line that has just been built can also be upgraded, and the cast iron pipes of the staff building can also be retired, greatly reducing the cost of the new staff building.

In addition, there are industrial protective clothing, canopies during the march of the new army, raincoats, rain boots, sandals, slippers, door and window materials, packaging materials, foam boards, this organic material is so useful that Xia Lin can't help but think a little just by mentioning the name.

However, before that, Xia Lin still had to overcome a difficulty, that is, the preparation of concentrated sulfuric acid and concentrated nitric acid.

Among them, concentrated sulfuric acid can be obtained by the mature lead chamber method temporarily, although the sulfuric acid concentration prepared by this method is worrying, and the lead consumption is large, but the operation and early investment are much less than the tower method and the subsequent improved contact method, which is more suitable for the current high-quality employees to operate, and there is a purification technique, and Xia Lin does not have to worry about the concentration problem.

As for concentrated nitric acid, it is more complicated, as a thing closely related to the synthetic ammonia industry, if you want to produce nitric acid on a large scale, you can only use nitrogen to react with hydrogen to obtain ammonia, and then use ammonia to react with oxygen to obtain nitrogen oxides, and further obtain nitric acid.

At present, Xia Lin has no way to establish a synthetic ammonia reactor to provide reaction conditions, and can only obtain nitric acid on a small scale by using saltpeter concentrated sulfuric acid to produce nitric acid.

Such a three-acid and two-alkali puzzle cannot be regarded as completely complete, it can only be said to be quite rudimentary, but for the time being, Xia Lin feels that it is barely enough, enough to build the foundation of a chemical system.

As Xia Lin was writing various plans in his office and perfecting his chemical system, he was interrupted by an unexpected visitor - a muscular crow with shiny feathers and a well-cared after.

"Gah! Gah!"

The crow grabbed a package from its paws, chirped and flew into Xia Lin's office through the open wooden window, flew around him twice, seemed to confirm something, and then dropped the package on his desk, stopped on the pile of papers placed in the corner of the desk, and began to bend his neck to comb his feathers.

"What is this?"

Xia Lin recognized that this crow seemed to be a magic pet used by the mage's guild to transport materials, and birds like crows themselves have considerable intelligence, and after the mages have been cultivating through a three-ring spell called psychic communication through prophecy for a long time, and at the same time giving them various physique-enhancing potions, they can have a considerable degree of wisdom,

Get this magical pet crow that is large enough to withstand long hauls.

Xia Lin heard from a professor in the academy that the best of them could even speak like a parrot.

"This is a sample issue of Runes and Magic for His Excellency Charlem Carr, and Agnes Freedtrika has a message: "This journal and the theories it contains have ushered in a new era in the wizarding world."

Just when Xia Lin was puzzled, the demon pet crow stopped combing its feathers, and its long beak opened and closed to make a deep middle-aged voice.

"Can crows talk?"

Xia Lin was suddenly taken aback by this scene, although he knew that some demon pet crows were rumored to be able to speak, but it was still too terrifying to see it with his own eyes and hear it with his own ears.

"Your Excellency Charlene Carr, although you have been praised by many archmages, you must not insult my identity, I am Mercury the Raven, the retinue of Archmage Agnes Fredetrica! It's fundamentally different from those ordinary crows!"

Mercury the Raven spread his wings and reported to his door dissatisfied, Xia Lin came back to his senses, and found that he seemed to be making a fuss, even the intelligent maid Golem and teleportation had been seen, what was there to be surprised about a talking crow, he said apologetically:

"I'm sorry, Sir Mercury, but I'm too rare and weird!"

"Since you've apologized sincerely, I'll forgive you!

Sir Mercury, I love that title! Sir Charlin, this package contains a sample of Runes and Magic and a letterhead from Archmage Agnes, I have completed my mission, please forgive me for my leave!"

With that, the raven named Mercury nodded humanly at Xia Lin, spread its wings, and flew out of the window where it came, and its muscular figure, almost comparable to that of an eagle, quickly disappeared into the sky.

"Archmage Agnes' message?"

Xia Lin opened the package and saw a new sample of Runes and Magic more than a centimeter thick.

Feeling the fluctuation of the magic power, Xia Lin curiously followed the fluctuation to the title page, and found that there was actually a teleportation beacon attached to it, which was written in flower-style letters under the recording magic array:

"Welcome to subscribe to the journal Runes and Magic, priced at 1 silver mar per issue and 10 silver mar for the whole year, please contact the information newspaper Golem for details!

Subscribe now to enjoy free Raven Shipping, no matter where you are in the Empire, our Couriers can deliver to you!"

This annual subscription discount was still mentioned by Xia Lin to Dean Manan by chance, but he didn't expect it to be really used by him in the journal "Runes and Magic", but this magic crow delivery service, Xia Lin never thought of it.

The Demon Crow, which the Three Ring Mages had to spend a lot of energy cultivating, actually used to transport the journal "Runes and Magic", such a large amount of money really made Xia Lin sigh.