In order to avoid dragging, it is one way to carry all the petri dishes in the space iron ring. However, the space iron ring is only one cubic meter, and the internal environment is not suitable for colony growth and difficult to modify. Really put it in, after a long time, a large piece of cultured colonies will die.

If you have a carry-on, super-capacity, and transformable space prop, it is the best solution. In this way, it can even be directly transformed into a portable laboratory. Experiments are conducted in it, and if there is a danger, such as an explosion or virus leakage, it can be isolated at any time.

But that's just a thought.

As far as I know, space props are really extremely rare, except for members of mysterious organizations such as Somen and Mu Koni, the wizards of the entire White Stone Tower have never seen anyone have them.

From this aspect, the horror of the mysterious organization behind Somen and Mu Koni can be seen.

It's really hard to imagine what the purpose of such an existence is to do all kinds of things in secret.

With a blink, Richard withdrew his thoughts.

He understands very well that super-large capacity space props are impractical, and he still tries to take one step at a time. The most important thing is to solve the graveyard exploration as soon as possible.

With this in mind, Richard finished all the petri dishes, glanced at Pandora, who was still intoxicated by the two boxes of glass shards, shook his head, and walked into the corner. Following a hidden entrance in the corner, you entered the spell laboratory buried deep underneath.

The spell lab has been remodeled again, and there is a huge pool of water on the ground. At this time, the pool is filled with water, and the water is piled with a large amount of salt.

This is how he uses it to make saturated salt water, which is a saturated sodium hydroxide solution.

The reason for making a saturated sodium hydroxide solution is......

"Da Da Da ......"

Richard walked to the edge of the pool, where there was a strange instrument, part of which led to the pool, and part of which was fixed to the edge of the pool. Next to the instrument, there are many heavy boxes, all of which are lead-acid batteries, which have been fully charged by Pandora by hand during the day, and they are full of power.

Richard carried the lead-acid batteries and installed them on the instrument one by one, operated them, and turned on the power supply.

"Crackling!"

An electric current travels through the pool and begins to exert its electrolytic effect, electrolyzing a saturated sodium hydroxide solution:

2NaCl + 2H2O = (energized) = 2NaOH + H2↑ + Cl2↑

"Goo-goo-goo!"

The pool quickly bubbled up from two different locations, and Richard knew that chlorine was coming out of one location and hydrogen from the other.

With a wave of his hand, Richard took out the heavy cylindrical iron can from the space iron ring, and used the "water droplet condensation" to compress the chlorine gas into liquid chlorine and fill it into the iron can.

That's why Richard made a saturated sodium hydroxide solution – enough chlorine gas was made, which was then liquefied into liquid chlorine.

Liquid chlorine is a liquid, and in a sense it can also be called a kind of "water" - well, liquid chlorine water, so when he said to Alex that "water is filled in a tin can", he was not wrong.

The electrolysis continued, the chlorine gas continued to bubble out, and under the control of Richard's spell, the liquid chlorine in the iron tank continued to increase, of course, it was still far from being full.

Richard understood this very well, in fact, the reason for the electrolysis of saturated salt water was not really to fill the iron can, but to do a test to see how efficient this method of chlorine production was.

It is important to know that there are many ways to produce chlorine, such as electrolysis of molten salt (NaCl) and magnesium chloride (MgCl). Another example is the reaction of strong oxidants such as potassium permanganate (KMnO4), manganese dioxide (MnO2), potassium chlorate (KClO3), potassium dichromate (K2Cr2O7) and hydrochloric acid to oxidize hydrochloric acid into chlorine gas.

Of course, the simplest is electrolysis of saturated saline.

After all, salt, water, and electricity are enough, not to mention the Middle Ages, but in prehistoric times, as long as the problem of electricity is solved, it can be carried out by finding a sea area.

However, there are certain problems with this method.

For example, chlorine is soluble in water, and one volume of water dissolves two volumes of chlorine. In addition, chlorine reacts with sodium hydroxide (NaOH), another product formed during electrolysis, to produce sodium chlorate (NaClO3). The diaphragm method is often used on the modern earth to isolate chlorine and sodium hydroxide (NaOH) to prevent this.

In short, there are pros and cons to each reaction, and he is now trying to find the most suitable way to produce a large amount of chlorine.

The reason why large quantities of chlorine are produced is because......

......

In the blink of an eye, many days passed.

After Richard deliberately obeyed some special foods and potions, the orange-red color of his skin dyed by the waves faded a lot. Although there is still a certain gap compared to the previous normal skin color, it is also acceptable.

The reason for saying this is that Pandora finally doesn't want to look at his arm for a long time with her head tilted and then looks like she wants to take a bite.

During this time, he experimented with various ways to produce chlorine, and modified the spell lab several times, eventually finding the most economical way to produce large quantities of chlorine gas for one of his plans.

......

Late at night, Richard appeared in the cemetery outside White Rock and walked to the grave of Alex's ancestor.

This was the third time he had come to explore.

The first time was to get the key information from Ruth, the princess of the Black Sacred Mountain Kingdom, and rushed directly to explore, but because the preparation was not sufficient, he was forced back by the large army of insect swarms.

The second time, after preparing for a long time, he explored again, successfully defeated the swarm, and killed the two-tailed golden scorpion and the three-tailed crystal giant scorpion. But I never thought that these were all disguises, and the real killer tricks hidden by the tomb designers were mushroom spores in the microcosm.

It was almost a cross-latitude blow, and even if he had thought about it, he didn't guard against it—a real hit. If it weren't for the existence of a hundred waves, he might have been cold.

Now he has finally recovered and is preparing for his third expedition.

But for this third expedition, he didn't want to be the same as the previous two times.

On the previous two occasions, he had almost known some of the conditions of the grave, and was extremely wary of the unknown things deeper in the grave.

According to the inherent routine of the tomb designer, something deeper will definitely be more deadly, more unguardable, and there may be a second or third insidious means like mushroom spores.

Even if it didn't, the mushroom forest and the army of new swarms of green, red, and purple weren't easy to deal with.

So, he really didn't want to explore like he had before and suffer again.

In this cemetery, he fell once because he was unprepared, if he fell twice, he was careless, and if he fell three times, he had no brains.

Since the designer of the tomb has set up a lot of insidious methods, he doesn't mind cleaning up the tomb in some unconventional way.

If you are unkind, I will be unjust.

If you get infected with germs, then I will disinfect it strongly.

You're designing a lot of difficulties, so I'll just ...... Violent demolitions.

Adventure exploration, the premise of exploration is that there is "danger", if all the "danger" is destroyed, then what else can be explored, you can directly push it.

Richard's eyes narrowed as he thought so. The next moment, bend down and activate the "Earth and Stone Control", causing the ground to crack the downward passage. Then he took out the heavy, cold sealed iron can from the space iron ring, aimed it at the downward passage, and opened the lid of the can with a "bang".

As soon as the liquid chlorine in the high-pressure and low-temperature state came into contact with the outside world, it quickly vaporized, turning into a yellow-green chlorine gas with a strong pungent smell and surging towards the passage.