Chapter 660: I need to find the key again.

"Saltpeter and sulfur are both right, great. Add the charcoal from the territory, and the raw materials are complete." It is worth mentioning that "one saltpeter, two sulfur, and three charcoal" is a simplified chemical equation: S+twoKNO3+threeC K2S+N2+threeCO2. Don't learn from entertainment works. Use one pound of saltpeter, two pounds of sulfur, and three pounds of charcoal. What you make is really like fireworks, and the enemy will laugh to death. According to the weight ratio, it should be seventy-five percent:ten percent:fifteen percent. Charcoal is used to ease combustion. The more sulfur accounts for, the more suitable it is for making explosives to open mines. After understanding the principle, changing the ratio will get different effects. After determining the raw materials, Field plans to skip black powder and go directly to granular gunpowder. There is only a knowledge threshold between the two, no technical threshold. Field hooked his finger: "Come, let me see, who has the best hand." The women stretched out their hands one after another, and the scene was full of brilliance. After a quick glance, Field said shamelessly: "Okay, okay, your hands are so beautiful, it's a pity not to use them for work." He directly stuffed the raw materials and grinding tools into the hands of the girls: "Come, grind them into powder."