Dangers of Grinding Aluminium & Potassium Chlorate

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Grinding a mixture of powdered aluminium with potassium chlorate is dangerous due to the highly reactive nature of both substances. The process can lead to the formation of aluminium oxide and the release of toxic chlorine gas, which poses serious health risks. Additionally, the potential for explosive reactions exists when these materials are combined and ground together. The risk is heightened by the fact that aluminium can become passivated, further complicating the reaction dynamics. Understanding these dangers is crucial for safety when handling such materials.
dajugganaut
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hi all,

im wondering why it is dangerous to grind a mixture of powdered aluminium with potassium chlorate in a mortar and pestle.

any help would be great.
 
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I'm not sure of the exact answer here but there are a couple of things i can think of. The reactive nature of potassium is dangerous but its more likely somethign to do with the aluminium reacting with the chlorate giving Aluminium oxide because aluminium in passivating and releasing chlorine gas which is highly toxic. I'm not 100% sure if that's the answer your looking for though, that's just off the top of my head.
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
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