Proportions Of Gunpowder Chemicals poster by Martyn F. Chillmaid/science Photo Library. Our posters are produced on acid-free papers using archival inks to guarantee that they last a lifetime without fading or loss of color. All posters include a 1" white border around the image to allow for future framing and matting, if desired.
Gunpowder components. Sulphur (yellow), carbon (black) and saltpetre (potassium nitrate, white) in the correct proportions to make gunpowder.... more
Gunpowder components. Sulphur (yellow), carbon (black) and saltpetre (potassium nitrate, white) in the correct proportions to make gunpowder. Saltpetre-based explosives date back thousands of years to ancient China. Modern gunpowder, in the proportions shown here, is first recorded from the 17th century. The proportions commonly used are saltpetre:carbon:sulphur (15:3:2).
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