LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Potassium nitrate. Molecular model of the inorganic chemical compound potassium nitrate (KNO3), used in fertilizers, food additives, rocket propellants and fireworks. It is also one of the constituents of gunpowder. Atoms are represented as spheres and are colour-coded: nitrogen (blue), oxygen (red) and potassium (violet). Illustration.
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