To provide a chemical spray container capable of positively coloring an identification object with a coloring solvent by a simple structure without using a launcher or the like, and used as a small usually portable marking ball.

The chemical dispersion container 1 is provided with a chemical bag 3 comprised of an elastic member holding a chemical, a gas cylinder 4 filled with compressed gas, and an opening means 2 for opening the gas cylinder 4. The chemical bag 3 is inflated by filling the compressed gas discharged from the gas cylinder 4, and when a critical point of an expansion coefficient exceeds and it is broken, the chemical sealed in an interior is dispersed.