Chapter 1466: 2 Carbon sulfide and Prussian blue

When he actually made raincoats, Marin realized that he had a simple idea ...

Gasoline does dissolve natural rubber. After a few hours of dissolution, the raw rubber cut into pieces is basically dissolved in gasoline.

Later, Marin asked the tailor to make a raincoat of later generations, made of linen, with a hood. Moreover, there is a rain-proof brim in front of the hood.

The cropped linen raincoat was thrown into the natural rubber gasoline solution and soaked. Then, take it out to dry, rinse again, and wash off the gasoline ...

The raincoats produced had no problem when testing the rainproof performance. But testing the fire prevention link ...

After all, it's a raincoat made from gasoline, which is a super-still substance. A raincoat soaked in gasoline for a long time, immediately encountering fire is like dry wood encountering fire ... maybe a little more active ... Then, the raincoat quickly became a firecoat ...

"Flame trench coat ..." Marin suddenly remembered a piece of equipment in a game ...

This kind of clothes, worn on people, encountered fire attacks ...

Forget it, not to mention ... Marin is very frustrated ...

"Let's follow the original history ..." Marin decided to act as a chemist and work out the rubber solvent used to make raincoats-carbon disulfide ...

Speaking of which, carbon disulfide is also flammable. However, the boiling point of carbon disulfide is lower than gasoline, only 46.5 degrees. The warm water in the bathhouse can reach this temperature.

After soaking the raincoat, soak it in 50 degrees warm water to absorb the carbon disulfide gas in the raincoat. Because this temperature exceeds the boiling point of carbon disulfide.

Even better, it seems that there is a cold vulcanization technology in the vulcanization of rubber. The method is to dissolve raw rubber in carbon disulfide solvent with a small amount of sulfur chloride added. And this vulcanization method is generally the vulcanization of film products.

It does not need to add sulfur for heating with rubber emulsion, which is very convenient. Moreover, in one step, both rubber can be vulcanized and raincoat film can be made.

In addition, because of the vulcanization, there is no heat resistance of the raincoat made of early raw rubber. After all, vulcanized natural rubber is resistant to heat, corrosion and wear.

Thinking of this, Marin didn't feel trouble, and immediately started to engage in carbon disulfide. As long as we get it out, we can directly make mature raincoats in one step.

As for how to make carbon disulfide ...

After thinking for a long time, Marin pulled out the introduction in the chemistry class from the depth of memory-using carbon powder and sulfur to isolate the air and heat it to more than 800 degrees ...

This is relatively easy. Marin sent people to build a larger sealed steel furnace. After obtaining carbon disulfide, it is collected through the pipeline. The pipes are arranged longer and are surrounded by cold water. In this way, after the carbon disulfide gas is cooled below 46.5 degrees, it will become a liquid and flow out. Marin can then be collected and used to dissolve raw rubber.

As for the poisonous gas leaked from carbon disulfide, Marin said it was not a problem. Because when he was engaged in aqua regia, he used activated charcoal and elephant skin or something to create a gas mask. As long as the workers are careful, they are still safe. Of course, this production base must be far away from the residential area, so as to avoid gas leakage and poisoning the residents of the east bank ...

...

With Marin's full theoretical support, the production of carbon disulfide is not difficult. Soon, Marin collected a lot of carbon disulfide liquid. Although the purity is not high, the work he has to do is very low on the purity of carbon disulfide. Then, a piece of modern raincoat was made with cold vulcanized rubber skin, not afraid of rain or high temperature ...

After this raincoat was manufactured, officers with limited equipment from the Sixth Army were given to British noble officers. As for the soldiers or something, weave a little with hay so it is enough. Moreover, there is a certain degree of protection in the clothes ...

What Marin did not expect was that the raincoats he made out of later generations seemed to be very popular. This kind of windbreaker, modern raincoat with hood and waist, and long leather boots, is a fashion. Moreover, it's not afraid of it on rainy days ...

The first thing that needs a raincoat is Angela. She asked for a red trench coat-style waistcoat raincoat, paired with pink long leather boots, and went out unaffected on rainy days. Then, Angela fell in love with a walk in the rain-wearing a windbreaker ...

Even if it is not raining, wearing this tunic trench coat and taking off the hood can also be used as fashion. In the lead of the Grand Duchess Angela, the senior nobles of the Beihai Kingdom followed suit and asked Marin for such a raincoat in a tunic. Of course, the color must be different.

Women's is very simple and rude-to be red or pink, men to be casual, either gray, black or blue ...

Moreover, in this era, dyes were basically extracted from plants, and some were extracted from minerals and animals, such as cochineal or something. Therefore, ancient dyes are relatively expensive. Mainly, it is difficult to collect. Unlike later generations, chemical dyes are used to obtain multiple colors of synthetic dyes at low cost.

In recent years, red and blue, which are generally cheaper in later generations, are especially high-end dyes and expensive. For example, red, the main red color in Europe today, is extracted from safflowers or made from cochineal corpses.

Among them, the dyes used in the red military uniforms of the famous lobster soldiers of later generations are mainly made of the bodies of female cochineal bugs. And this cochineal insect, generally parasitic on the cactus in the dry areas of tropical and subtropical.

Obviously, Europe does not have a dry climate suitable for cactus growth. Therefore, carmine in Europe is generally imported from the deserts of North Africa or West Asia.

Of course, Mexico is also a region rich in cacti. In later generations, Mexico is even known as the country of cacti, and it is also a big country of cochineal production. Anyway, Marin intends to vigorously promote the cultivation and production of cochineal bugs in the arid zone of Mexico.

Speaking of cochineal, the Britons did a stupid thing-they introduced cacti in arid Australia to cultivate cochineal bugs. As a result, the cactus bred wildly in Australia like a rabbit, became a famous invasive plant, and like rabbits, became a huge harm in Australia ...

Marin didn't need to do such a stupid thing, as long as he occupied Mexico, the country of cacti, he wouldn't worry about cochineal bugs.

And blue, it seems that there are more indigo grasses in Scotland. For example, when the Scottish hero Wallace rebelled against the British invasion, he used the blue juice of the local indigo grass to paint his face.

But indigo grass needs a lot of land to plant, and few people are willing to use precious land to plant this stuff. Moreover, the blue juice content of indigo grass is also low ...

"Oh, Prussian blue!"

Marin suddenly remembered a low-cost dye, the most important thing is-he knows how to produce. Unlike most dyes in later generations, he did not know the production method.

Only the legend of Prussian blue, because it is an interesting historical story, Marin has just read it, only to know the production method of Prussian blue.

Speaking of which, the production method of Prussian blue is very simple-it is first mixed with grass ash and cow blood to roast, then the roasted material is leached with water, insoluble impurities are filtered out, and yellow crystals are separated from the solution. Then put this yellow crystal into the ferric chloride solution, it produced a very bright blue precipitate. This blue precipitation is a very good paint-Prussian blue ...

Prussian blue has bright colors, and it is not easy to fade. In addition, the cost is not high. After this dye appeared, the Prussian army began to use this Prussian blue to dye military uniforms. Because the dye is of good quality and the cost is not high, it is a very good choice for military clothing. It was not until World War I that the bear children changed the German military uniform from Prussian blue to earth gray.

Of course, we can't blame Wei Er. Because World War I was already an era of trench warfare. Everyone is lying in the dirt pit all day ~ www.wuxiaspot.com ~ The dirty, earth-grey military uniform is more suitable for the trenches. If the Prussian blue uniform is stained in the trench, it is easy to see ...

...

Thinking of these, Marin laughed-another way to get rich! Even if Prussian blue is produced in the most primitive way, the cost is not high.

For example, grass and ash, there are all kinds of things. As long as the soil stove is used, there will be ash. For cattle blood, this thing is not easy to find in China, because it is not allowed to kill cattle. But in the North Sea country, Marin imports tens of thousands of cattle from Crimea every year, part of which is used for arable land, and a considerable part is used to slaughter and eat beef. Therefore, cow blood is absolutely indispensable and the cost is not high. Ferric chloride is not a rarity, it is easier to get along. Imalin's knowledge of chemistry is still very easy. In this way, the production of Prussian blue is no problem.

Then, Marin also started to think about it-would he want to change the blue military uniforms of the North Sea army? After all, the white vest is too easy to be copied, it is a bit low ...

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