Wizard: I brought the wrong system

After finishing all this, Yarrow tidied up the ground a little, and then took out the skull mask.

What is added to this skull mask is not the official spell 'Walking Underwater', nor the constant intermediate trick 'Water Breathing', but as long as water is added to the interlayer, Yarrow can ignore the surrounding air environment.

The reason for all this lies in the magic patterns that can generate tiny currents.

That's right, electrolysis.

The skull mask is equivalent to a beautifully crafted electrolytic cell. Relying on the power of magic patterns in this world, it uses magic stones as energy to generate tiny currents, which continuously electrolyze the water in the interlayer into oxygen and hydrogen.

This is the knowledge he learned in the middle school in his previous life, and now he is going to use the mask to continue to use this knowledge.

——Caustic soda needed for saponification reaction.

Caustic soda, that is, sodium hydroxide, is a strong base and does not exist in nature.

There are many ways to prepare caustic soda, but Yarrow has limited materials, so he plans to obtain it by electrolysis of saturated salt water.

After saturated brine, sodium hydroxide, chlorine and hydrogen can be obtained.

Among them, chlorine gas and hydrogen gas fly into the air, and only sodium hydroxide remains in the liquid.

Air pollution?

what is that?

Wizards don't like this!

When enough sodium hydroxide was produced, Yarrow took out some saltpeter. When the saltpeter was mixed into the water, it would absorb heat and keep cooling down, and the water inside would gradually freeze.

Caustic soda will condense at a few degrees, but salt will condense at minus ten degrees, and caustic soda can be extracted by crystallization.

Of course, the caustic soda extracted in this way will inevitably contain impurities, but Yarrow's requirements for the concentration are not high, and it is almost enough.

Put the prepared caustic soda aside and let the water flow out.

Take out the oil accumulated over the past few months, not much—in terms of conversion, it may not be as much as the two barrels of vegetable oil in the previous life.

Perrin Castle lacked livestock, and the servants in the castle also had to eat oil. Yarrow himself was a big oil eater, and he was able to accumulate so much oil thanks to the help of the white deer in hunting.

Next, Yarrow is going to use the knowledge from high school in his previous life - the saponification reaction.

The saponification reaction is not difficult and does not require other additives, but if you want to speed up the reaction, you can add some alcohol to reduce the consistency of the oil, so that caustic soda can penetrate into the oil more easily.

Yarrow didn't prepare alcohol and didn't think about those things anymore.

Drain the oil, heat it, and wait for the solidification point of the animal fat to dissolve, then put the caustic soda prepared earlier.

The next thing is to wait. In order to prevent the oil from re-condensing, and because this process also requires a temperature of 90-100, Yarrow added a pot of water in the middle to maintain the reaction process.

Taking advantage of this spare time, Yarrow first took some food out of the space ring, and observed the situation in Perrin Castle while eating.

Fortunately, in just half a day, Perrin Castle did not change much.

Seeing that the 'bait' had no sign of a trigger point, Yarrow turned away from the binoculars and went back to making tools.

The saponification reaction does not use much caustic soda, and Yarrow has a use for the remaining caustic soda.

Dissolve caustic soda, and continuously pass carbon dioxide into it, so that it gradually turns into soda ash.

With soda ash, making glass is simple.

The addition of soda ash not only lowers the temperature required to make glass, but also reduces the bubbles contained in the glass.

Of course, there are advantages and disadvantages. Glass containing impurities will reduce its mechanical strength and chemical stability, so limestone is generally added to ordinary glass.

Yarrow has no place to find limestone now, so he can only put less soda ash and continue to make glass by increasing the temperature.

As long as you are willing to give up the molten rock, even if you lack some materials, it is not difficult to make glass.

Large beakers, catheters, glass rods... As time goes by, all kinds of utensils continue to take shape in Yarrow's hands.

When the sky was completely dark, Yarrow finally made these utensils.

At this time, the saponification reaction was finally done.

Light it up with the light spell, and move the hang glider a little distance to make sure that no light is directed in the direction of the castle.

Add saturated saline to the saponification reactor, and the solution shows that a layer of milky white viscous material will emerge soon.

— This is soap.

The remaining ones are the by-products of the saponification reaction—glycerin.

Of course, glycerin also contains a lot of salt and water.

Continue to heat, the salt will not evaporate, so it will stay - collect 'mysterious gas', cool down to get 'mysterious liquid a'.

Sulfuric acid burns to collect gas, add oxygen to dissolve into water, and get 'mysterious liquid b'.

Put saltpeter into 'mysterious liquid b', heat it, collect gas, and dissolve it into water to get 'mysterious liquid c'.

Adjust the concentration, mix the three items...wait.

Boom...!

A muffled thunder exploded inexplicably in the dark sky.

A white light lit up, and after a while, it gradually subsided.

The cool night wind rustled the surrounding leaves.

Yarrow looked up at the sky and wondered in his heart, "Is it going to rain? The weather is changing so fast."

But he wasn't worried, anyway, with the 'hang glider' as the roof, the rain couldn't catch him anyway.

It just needs to deal with the surrounding space to prevent the wind and rain from blowing in and affect the night's rest.

……

Even after a hard day, little Heli still doesn't feel tired.

Not to mention that she was shot by a poor family, but to say that those things were confessed by Mr. Yarrow himself.

She thinks that there are not enough things that can help adults. If Lord Yarrow forbids to light the lamps, or if the servants have to rest, she would like to continue doing it without sleep.

How can you feel tired?

Speaking of Lord Yarrow, little Heli inexplicably thought of Miss Bailu.

"Why didn't Miss Bailu come back with you? Did she go home directly? Did she sing that song to Lord Yarrow?"

"Miss Bailu is so beautiful, she is a good match for your lord!"

"It's not like me... I'm thin and small, and my hair is dry red."

The little girl's emotions came and went quickly, she only felt sorry for herself for a moment, and then cheered herself up again.

"Since I can't continue to help Lord Yarrow purify the materials at night, then I will be the generator that the Lord said!"

"When the adults come back next time, I will show the generator to the adults!"

Thinking of Master Yarrow, the little girl's eyes turned into two crescents when she laughed, and she was bouncing around when she walked.

Trotting to the familiar laboratory, Heli carefully picked up the ordinary-looking stone from the laboratory table, and then took out the notes kept close to him from her pocket.

"What should the generator do?"

The little girl muttered and searched carefully.