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Q: Can you get flash burn from grinding?
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Can you change flammability of compound?

It depends on the substance. Yes, all flammable substances have a "flash-point". Every substance has a different flash point expressed in degrees Celsius or Fahrenheit. If the temperature is below the flash point you will not be able to ignite it. And the higher the temp above the flash-point the more readily it will burn.


Can flash powder self detonate?

It will depend on the oxidizer you are using. Nitrate-aluminum flash powders are pretty stable, but a ammonium perchlorate-aluminum flash powder is extremely shock sensitive. One scrap on the ground and it could ignite. By the way, flash powders (with the exception of ammonium nitrate and aluminum which is explosive) do not detonate; they just burn very fast.


What is significance of flash point?

The flash point of a flammable liquid is the lowest temperature at which it can form an ignitable mixture in air. At this temperature the vapor may cease to burn when the source of ignition is removed. A slightly higher temperature, the fire point, is defined as the temperature at which the vapor continues to burn after being ignited. Neither of these parameters is related to the temperatures of the ignition source or of the burning liquid, which are much higher. The flash point is often used as one descriptive characteristic of liquid fuel, but it is also used to describe liquids that are not used intentionally as fuels


Could ozone burn?

Ozone does spontaneously decay. When ozone concentrations reach 10 wt% (most modern ozone generators can make this), it can deflagrate back to hot oxygen. The wavefront does not propagate very fast, there is no big boom, and not any sort of visible flash associated with it.Ozone does not burn, no.


How does grinding speed up dissolving?

By grinding the surface area of the sample increase and the contact between the solvent and solute is improved.

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