gunpowder wikipedia - EAS
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Gunpowder, also commonly known as black powder to distinguish it from modern smokeless powder, is the earliest known chemical explosive. It consists of a mixture of sulfur, carbon (in the form of charcoal) and potassium nitrate (saltpeter). The sulfur and carbon act as fuels while the saltpeter is an oxidizer. … Xem thêm
Gunpowder is a low explosive: it does not detonate, but rather deflagrates (burns quickly). This is an advantage in a propellant device, where one does not desire a shock that would shatter the gun and potentially … Xem thêm
For the most powerful black powder, meal powder, a wood charcoal, is used. The best wood for the purpose is Pacific willow, but others such as Xem thêm
The United Nations Model Regulations on the Transportation of Dangerous Goods and national transportation authorities, such as Xem thêm
China
The first confirmed reference to what can be considered gunpowder in China occurred in the 9th century AD during the Tang dynasty, first in a formula contained in the Taishang Shengzu Jindan Mijue (太上聖祖金丹秘訣) in … Xem thêmSerpentine
The original dry-compounded powder used in 15th-century Europe was known as "Serpentine", … Xem thêmA simple, commonly cited, chemical equation for the combustion of gunpowder is:
2 KNO3 + S + 3 C → K2S + N2 + 3 CO2.
A balanced, but still simplified, equation is:
10 KNO3 + 3 S + 8 C → 2 K2CO3 + 3 K2SO4 + 6 CO2 + … Xem thêmVăn bản Wikipedia theo giấy phép CC-BY-SA - Mọi người cũng hỏi
Gunpowder – Wikipedia