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This web site: www.newton.dep.anl.gov/askasci/chem00/chem00283.htm
Says this:
"Moth balls" is a generic term that can refer to at least three very
different chemical compounds: 1,4 dichlorobenzene, camphor, or naphthalene.
The melting point of these compounds is 53, 178, and 80 C. respectively. The
vapor pressure of each of these compounds at their respective melting points
is about 10 mm Hg. This vapor pressure is sufficiently high that the compounds
sublime [vaporize from the solid] if they are heated in an open environment.
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoSublimation is the process of a change of physical state from solid straight to a gas. The naphthalene insecticide essentially evaporates, releasing its toxic insecticide into the air to kill off moths. This process occurs just like water would melt from ice, but into a gas instead of a liquid.
Wiki User
∙ 16y agoMothballs undergo "Sublimation", which is the change of state from a solid to a gas without ever becoming a liquid
Wiki User
∙ 15y agoNapthalene, the main component of mothballs, has a melting point of 80.23o C
Wiki User
∙ 13y agoYes
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How do you use moth balls in the closet?
you just put the moth balls in the closet and leave them there
Naphthalene balls disappear with time without leaving solid why?
The "moth balls" perform an action called "Subliming". That is, they go from a solid state directing to a gaseous state. This is the same thing that 'Dry Ice' does. Dry Ice is solid CO2 , and does not melt into a liquid state, but rather it goes from solid to gas directly.
How do you get rid of the smell of moth balls?
I have an old chest that smells like moth balls. How can I get rid of the odor?
Why does your basement smell like moth balls?
Your basement smells like moth balls because you either have the camphor smell throughout your basement or your wall contains the chemical agents in moth balls
Is disappearance of moth ball a chemical or physical change?
It is a physical change (sublimation).
Why naftalin balls that you used to protect clothes from moth become small?
The naphthalene balls will undergo sublimation even at room temperature. When these balls are used to protect the clothes from moths, we can identify the smell of the balls. This is due to its sublimation which makes it to become small.
What are the 4 requirements for sublimation?
It is dry ice or moth ball. Place moth balls on the foor it looks like its melting but its really going through sublimation
How does sublimation differ from condensation?
Condensation is changing from a gas to a liquid. In sublimation, substance goes directly from solid to gas without ever becoming a liquid. Moth balls and dry ice both do that.
Which phase transition occurs when moth balls slowly become smaller and eventually disappear?
The moth balls get smaller by the process of evaporation. Due to the health risks of 1,4-dichlorobenzene (newer type), and flammability of naphthalene (older type), other substances like camphor are sometimes used.
How do you use moth balls in the closet?
you just put the moth balls in the closet and leave them there
How can moth balls be frozen?
Because when you fry moths and then freeze them they become little balls there for being frozen moth balls!
Do moth balls control gophers?
Moth balls do not control gophers. They do tend to repel them as they do not like the scent of the moth ball though.
Does heat help moth balls to disintegrate?
Yes, heat plays a large roll in the disintegration of moth balls. Ventilation is another main factor in disintegration of moth balls.
Naphthalene balls disappear with time without leaving solid why?
The "moth balls" perform an action called "Subliming". That is, they go from a solid state directing to a gaseous state. This is the same thing that 'Dry Ice' does. Dry Ice is solid CO2 , and does not melt into a liquid state, but rather it goes from solid to gas directly.
How do you get rid of the smell of moth balls?
I have an old chest that smells like moth balls. How can I get rid of the odor?
What could happen if you accidentally sniff moth balls?
If you accidentally sniff moth balls for a short period of time you should be okay. Moth balls are pesticides and very harmful if you are constantly inhaling it.
Why does your basement smell like moth balls?
Your basement smells like moth balls because you either have the camphor smell throughout your basement or your wall contains the chemical agents in moth balls
