Generally until they dissolve-say a couple months.
Yes, after a few weeks/months. They essentially evaporate.
They react with exposure to air; same way water does.
On avge, about 2 mos. Depends on heat & ventilation.
Concentration is key. the question is, are you using enough for the airspace in question.
10-16 minutes
Wherever you place them.
A couple months on average.
Yes, heat plays a large roll in the disintegration of moth balls. Ventilation is another main factor in disintegration of moth balls.
Most brands will dissolve in the rain.
it could be from a week to months
There are a number of things you can do to separate powdered moth balls into to salt. Dissolve the moth balls in water.
It forms nail polish remover.
No, but they don't last too long after exposure to air. Eventually they dissolve so no expiration date applies.
you just put the moth balls in the closet and leave them there
Because when you fry moths and then freeze them they become little balls there for being frozen moth balls!
Moth balls do not control gophers. They do tend to repel them as they do not like the scent of the moth ball though.
I have an old chest that smells like moth balls. How can I get rid of the odor?
The chemical dissipates over time, but the ball itself is easily dissolved in water. Some throw them in the washing machine to get rid of them.
Because alcohol, or ethanol, is non-polar as well. I'm not sure where you're getting your info from.....