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Chapter 318 Boric acid soap and thermometer [Third update!  Please subscribe!  ¡¿

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    As a doctor of chemistry, in Dakang, a place where the chemical industry is almost zero, there is a lot of room for you to display your abilities.

    For example, in order to make sulfa drugs recently, Liu Mingqi not only made hydrochloric acid, but also made sulfuric acid.

    Look!

    Sometimes the manufacturing of chemical agents is consistent with the development of an overall industry.

    With sulfuric acid, many things can be done.

    For example, Liu Mingqi is considering an upgraded version of soap and a low-profile version of disinfectant alcohol - boric acid soap.

    Boric acid is a substance with disinfecting and anti-corruption properties. If it exists in the form of borate and is mixed with soap, it will become boric acid soap with more powerful disinfection capabilities.

    For small wounds in daily life, just using boric acid soap is enough.

    When disinfectant alcohol is not available, large wounds and lacerations can be temporarily cleaned and disinfected with boric acid soap, which can greatly alleviate the symptoms of bleeding and inflammation, and can be treated slowly later.

    After all, with the current production and storage methods of disinfectant alcohol, it is certainly impossible for everyone to carry it with them.

    But boric acid soap does.

    The same is true in terms of price.

    Liu Mingqi cannot sell disinfectant alcohol infinitely below cost just because he wants to help them. This is absolutely impossible to sustain a business.

    ??And in this way, the poor will still not be able to afford what they should not be able to afford, and they will still not want what they should not want.

    ¡°But Liu Mingqi can make boric acid soap at the same price as soap, which can be regarded as benefiting the people.

    ? One is used for cleaning clothes and body, and the other is used for daily disinfection.

    There is no conflict between the two uses. Use whichever one you want.

    With one tael of silver and half a kilogram of boric acid soap, even if a family can use it for two or three years, it won¡¯t be a problem¡ªit¡¯s impossible for someone to be injured every day, right?

    The raw material of boric acid is borax.

    Borax is actually a kind of medicinal material.

    "Borax is produced in the southwest, and there are two kinds: yellow and white. The western one is white like alum, and the southern one is yellow like peach gum. They are both made by refining, like sand. The western one can remove dirt from soft objects and kill hardware. It has the same effect as saltpeter and arsenic.  Shi Xiang De Ye."

    Traditional Chinese medicine believes that it is non-toxic, bitter, pungent and warm.

    ??In fact, this is not scientific.

    Borax is toxic.

    If you eat it, you will definitely be poisoned. If you eat too much, it will be as cold as eating arsenic.

    But if it is made into boride, it will be a very good disinfection and anti-corrosion product.

    But this cannot be matched casually.

    It must go through a chemical reaction.

    Compared with borax, boric acid is a purer and more effective disinfectant.

    It is not difficult to make boric acid.

    After getting the borax, dissolve and filter the borax to remove impurities, then heat it in an acid hydrolysis tank. Add sulfuric acid at about 90 degrees to allow them to react.

    After the reaction, after cooling, crystallization, separation, and drying, boric acid powder is obtained.

    Doesn¡¯t it look simple?

    ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? are actually quite difficult.

    ?? If nothing else, it is not easy to make an acid hydrolysis tank, because sulfuric acid and boric acid are corrosive substances. If they are not done properly, they will corrode the utensils, which will cause harm.

    Fortunately, there are already a large number of glass craftsmen in Liu Mingqi's house.

    They are responsible for making many glass products, test tubes, etc., and have already cultivated them.

    This is the result that Liu Mingqi finally achieved by constantly spending money and hiring highly skilled glass craftsmen.

    It is still possible to use large glass tanks as acid hydrolysis tanks at present.

    Because this kind of mass production is not modern industrial production, the quantity does not need to be so large, and the conditions are not complicated.

    But few people can make large glass circular jars that are several meters high and more than three meters in diameter.

    The other thing is temperature control.

    If no one tells you that the reaction occurs at around 90 degrees, then you will have to go through thousands of experiments to finally get a reliable result.

    Not to mention the money spent here, it took at least a few months.

    This is the benefit of modern people. These crucial knowledge points can be obtained through learning and memorizing, instead of experimenting one by one.

    To do this, Liu Mingqi had to make a glass mercury thermometer, which is what modern people use., the production speed can be accelerated.

    ¡°However, this kind of production is still very dangerous and difficult.

    Especially sulfuric acid.

    So far, Liu Mingqi has only brought a few children from the family to conduct experiments.

    In the first time, Liu Mingqi demonstrated to them the corrosive properties of sulfuric acid.

    Seeing the stiff pig skull gradually melting into the sulfuric acid, a group of family members were almost stunned.

    To this end, Liu Mingqi also eliminated seven or eight people, and then selected them according to the criteria of boldness, carefulness and conscientiousness. In the end, only five people were left.

    So far, they have conducted thousands of experiments on extracting and producing sulfuric acid.

    Even so, they were still careful when making sulfuric acid. They wore special clothes every time, and there must be someone standing by with a bucket.

    Whenever it is contaminated with sulfuric acid, a bucket of water must be poured over it.

    There are even a dozen huge wooden barrels placed in the manufacturing workshop, and the barrels are also filled with someone.

    Once someone is contaminated too much, he will be immediately thrown into the barrel to allow the sulfuric acid to be quickly diluted.

    Of course, the five of them have not had any accidents so far, but the group of servants standing by have changed several batches - they are under too much psychological pressure and want to splash water at any time.

    With such caution, the output of sulfuric acid is not too high.

    Fortunately, the amount of sulfuric acid required to make boric acid powder is not large, so it is not only enough, but also a lot of stock can be saved.

    But this amount of inventory seems to be far from enough for Liu Mingqi.

    What is sulfuric acid?

    The mother of industry!

    Although not all industrial development requires sulfuric acid, it is one of the most important chemicals for industrial applications.

    No matter whether Liu Mingqi does more things in the future, it is necessary to have more sulfuric acid on hand.

    Fortunately, there are more people in the mansion now.

    In January, Liu Mingqi personally recruited 707 teenagers aged 12 or 13 to enter Prince Yu's Mansion. As long as they start teaching them some physical and chemical knowledge now, it won't be long before they can enter the laboratory and start helping.

    Don¡¯t think you are young at this age.

    That was in modern times.

    In ancient times, a 12- or 13-year-old boy could already own half of the family.

    They had done a good job in the briquette workshop before. They were Liu Mingqi's favorite tool workers who worked hard, were willing to suffer losses, and obeyed orders.

    ???The setting Liu Mingqi gave them in the future is not just ordinary workers.

    Some scientists will inevitably emerge among them, and civilization and science will begin to spread throughout the world.

    Liu Mingqi doesn¡¯t know what¡¯s going on in Europe now, but according to the Hu merchants and Persian merchants in Dakang, it should not have entered the industrial age yet.

    ??Probably the level of the 11th and 12th centuries.

    ¡° Then only Dakang has such a batch of scientific seeds, and its future development will definitely be faster than that of Europe.

    ¡° In this way, the precious three hundred years lost by China in another world will definitely not become a regret again.  (Remember the website address: www.hlnovel.com
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