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![[Post New]](/templates/default/images/icon_minipost_new.gif) 26 Mar 2007 21:47:32 IST
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why is propanone used as a nail polish remover ???
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Umang |
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26 Mar 2007 22:30:02 IST
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Propanone or Acetone is a very good solvent and is highly volatile. It can easily dissolve the nail polish and can evaporate very easily. So...
By the way if you wash your hands with acetone instead of water, then they will be washed better (as it can remove many substances from your hand that are insoluble in water) and you will not even need a napkin (as it will evaporate faster)...
Hope this helps...
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"If you win, you shall not have to explain and if you lose, you wont be there to explain"
~ Adolph Hitler |
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28 Mar 2007 06:50:16 IST
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ya , I think u r right . Thanks for helping !!! By the way , this question was asked in class X board exam this year . Just one query , what does nail polish consist of and how is it dissolved ???
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Umang |
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28 Mar 2007 11:23:28 IST
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Modern nail polish is sold in liquid form in small bottles and is applied with a tiny brush. Within a few minutes after application, the substance hardens and forms a shiny coating on the fingernail that is both water- and chip-resistant. Generally, a coating of nail polish may last several days before it begins to chip and fall off. Nail polish can also be removed manually by applying nail polish "remover," a substance designed to break down and dissolve the polish...
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"If you win, you shall not have to explain and if you lose, you wont be there to explain"
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28 Mar 2007 12:51:01 IST
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hey purav ! I know all this , but I wanna know the composition of a nail polish !!! Reply if u know !!!
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Umang |
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28 Mar 2007 13:39:52 IST
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yep i 2 wanna kno this.....pls reply ppl... y is acetone used as remover??
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LOOKING 4 A SKY BEYOND D SKIES!! |
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28 Mar 2007 20:24:11 IST
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The three main types of ingredients in nail polish are (1) organic solvents and drying agents, (2) thickeners and hardening agents, typically polymeric species such as polyester-urethanes resins or styrene/acrylic copolymers, and (3) coloring and other agents to provide certain colors and effects such as shine.
Now to answer the question you asked concerning the chemicals and chemical reactions that make nail polish removal possible. Here's the beuaty of the entire thing- there is no chemical reaction. The nail polish remover is just the organic solvent that is used as an ingredient in the nail polish. That is, ingredient #1 above is sold as a "pure" material (meaning that ingredients 2 and 3 are not present, but that does not mean that other chemicals are not present to save costs). The hardened nail polish is dissolved by the nail polish remover (basically putting it back into the form that it was in when applied to a nail). For dissolution to occur, no chemical reaction takes place. However, what is necesary is that the solvent likes the polymer. There is a rule of thumb that may be a bit oversimplified, but it works, and that is "like dissolves like." And in this case, it can really be oversimplified and said that the organic polymer that is the hardened polish on a nail can be dissolved by an organic solvent (by no means an exact rule, but it usually gives one a good starting point). So if a solvent likes the polymer, as is the case for nail polish and nail polish remover, the solvent molecules (which may be ethyl acetate or acetone, two organic solvents) get in between the polymer chains and "push" them apart. There are so many of the solvent molecules pushing the polymer chains apart that eventually the polymer chains do not know that other polymer chains exist and you get a solution. This solution can then be wiped off with a cotton ball or tissue when nail polish is dissolved by nail polish remover. Next time you remove nail polish (or see someone remove nail polish), look at the cotton ball or tissue, eventually the solvent will evaporate (similar to the drying process as to when one is painting their nails) and leave a hardened residue on the cotton ball. This dissolving/evaporating process is endless (for the most part) so that if you can collect the dissolved nail polish, you could use it over and over as long as you have a solvent
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"If you win, you shall not have to explain and if you lose, you wont be there to explain"
~ Adolph Hitler |
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29 Mar 2007 11:50:19 IST
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becuz of 2 properties
They dissolve the chemicals involved in making nail polishes
They are volatile
so when u apply acetone....it will dissolve the nail polish and evaporate off
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Sometimes One Dream Is Enough To Light Up The Entire October Sky....
First Year Mechanical Engineering
Veermata Jijabai Technological Institute |
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29 Mar 2007 20:58:30 IST
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acetone is used as nail polish remover asit break down the bonds and make it easy to remove the upper coating and also it is highly volatile so easy to clean .
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<TR><TD>
   
<DIV ALIGN="right">Glitter Graphics</DIV></TD></TR></TABLE>
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29 Mar 2007 20:59:14 IST
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if anyone got more information then please post.....
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<TABLE CELLSPACING="1" CELLPADDING="1" BORDER="0">
<TR><TD>
<DIV ALIGN="right">Glitter Graphics</DIV></TD></TR></TABLE>
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29 Mar 2007 21:24:26 IST
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Hey purav ! Vast knowledge indeed !!! I asked some of my friends , and they said that nail polish mainly contains formaldehyde . Pls confirm !!!
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Umang |
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30 Mar 2007 14:31:22 IST
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Today there are many kinds of nail polish.
They are made of different chemicals.
I checked the ingridients on a bottle of one and it was made of chiefly ethyl acetate...
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