Allure Demon Concubine: Doting the Crown Six Palaces

Chapter 733 Potassium Nitrate

I have already pulled a long thread on the top of the paper bag, holding it and constantly meditating: "God bless, it must be successful."

After finishing speaking, I ruthlessly ignited the thread of the paper bag, and when it was about to burn to the paper bag, I immediately threw it into the pool. Don’t say that my first experiment was so successful, although It's not very powerful, and that's because the weight I'm making now is relatively small, but it also makes the whole pool splash with water. 
"Very well, very well, I have succeeded, I have succeeded. No, now we have gunpowder, but potassium nitrate is needed."

Potassium nitrate is commonly known as fire nitrate or soil nitrate.It is an important raw material and compound fertilizer for black powder.

Preparation of potassium nitrate can use nitrate and plant ash as raw materials.After the organic matter in the soil decays, nitric acid is produced by the action of nitrous acid bacteria and nitric acid bacteria.Nitrate combines with ions such as potassium, sodium, and magnesium in the soil to form nitrate.This is how the nitrates in the nitrate come from. 
Nitrogen generally exists in toilets, pig and cow stables, at the foot of old courtyard walls, cliff edges, caves and ground that is not easily washed by rain.

For this potassium nitrate, I really took a hoe and looked for it by the toilet or something. It almost stinks me to death, but in the end, the emperor paid off and let me find it.
The most difficult thing is coming at this time. 
(1) Grind the nitrate and plant ash separately.Weigh the raw materials according to the 8:1 mass ratio of nitrate and plant ash (the ratio of raw materials varies due to different sources), mix them and put them in a large beaker, add hot water at about 75°C until the mixture is submerged.

(2) Stir continuously with a glass rod for about 15 minutes, and then carry out suction filtration.Put the slag in the beaker again, add an appropriate amount of hot water and stir for 15 minutes, then filter again, and combine the two filtrates together (you can only filter once when there are many raw materials), and the obtained filtrate is often called nitric acid. .

(End of this chapter)