gunpowder chemical formula 1 sulfur 2 yellow 3 charcoal is what?

The folk saying "one nitrate, two sulfur and three charcoal" says that the mass ratio of the three components of black powder, referring to the use of sixteen two for a catty of the old-fashioned pole scales , weighing a catty earth nitrate or fire nitrate (potassium nitrate), two sulfur, three charcoal, three mass ratio of 16:2:2. potassium nitrate ), two two sulfur, three two charcoal, three mass ratio of 16:2:3.

Secondary school chemistry said that "one sulfur, two nitrate, three carbon" is actually a black powder combustion equation of the molecular coefficients of the reactant or the amount of matter ratio, that is: S +2KNO3+3C=K?S+N?↑+3CO?↑, converted to mass ratio is still about 75% potassium nitrate, sulfur about 10%, carbon about 15%, or potassium nitrate: sulfur: carbon = 15:2:3.

Use of the requirements

The gunpowder should meet the following requirements:

One, a good combustion stability and regularity.

Two, sufficient strength to ensure that the ignition does not produce a rupture of the body and affect the combustion performance.

Three, good toughness, chemical stability, to ensure that the gunpowder can be stored for a long time without deterioration.

Four, impact, friction and other mechanical sensitivity should be small, to ensure the use, production, storage, transportation process safety.