Monday, December 28, 2009

When perfume is in a bottle, it is a liquid. Why does it become a gas when it is sprayed?

By the way, does the particle theory explain this? Thanks!When perfume is in a bottle, it is a liquid. Why does it become a gas when it is sprayed?
Perfume is a mixture of fragrant essential oils and aroma compounds, fixatives, and solvents used to give the human body, objects, and living spaces a pleasant smell.


Perfume oil is necessarily diluted with a solvent because undiluted oils (natural or synthetic) contain high concentrations of volatile components that will likely result in allergic reactions and possibly injury when applied directly to skin or clothing. Solvents also volatilize the essential oils, helping to diffuse them into the air.


By far the most common solvent for perfume oil dilution is ethanol or a mixture of ethanol and water. Perfume oil can also be diluted by means of neutral-smelling lipids such as jojoba, fractionated coconut oil or wax.


When the perfume is sprayed it passes through a small opening of the container and due to its volatile nature diffuses into the air.


There is nothing against the particle theory on diffusion of the perfume into the air as it occurs as per chemical reactions/ laws.When perfume is in a bottle, it is a liquid. Why does it become a gas when it is sprayed?
It's a mixture of water and alcohol - and both water and alcohol will evaporate. Make a fine mist, and the tiny droplets will evaporate before they fall very far.


There are also small amounts of the oils that give it its odor. These oils evaporate much more slowly (that's why perfume lasts for hours on your skin), but after the water and alcohol evaporate, the oil particles that are left are REALLY small, (you can't see them, even) and will float around until they evaporate too.
Actually, perfume is still a liquid when it comes out. It's just that the opening is really small, so the particles that come out seem like it's a gas. Also, there is alcohol in the perfume which evaporates when exposed to air.
The perfume inside the bottle is forced out of the nozzle at high pressure when the spray mechanism is activated. This means that the partiles that make up the perfume spread out, the high pressure forces them out in all directions.


The perfume is still a liquid.


It happens for the same reason that water sprays all over the place when you put your hand on the tap
it doesnt it turns into little drops of liquid
It becomes an aerosol, not a gas -- very fine particles of the same liquid that's inside the bottle.
it is still liquid when it comes out of the bottle.but comes out as a fine mist,CAUTION,perfume usually contains alcohol,thus you should never apply near an open flame eg matches cig lighters.i once worked in a burns unit and a seen the damage that can be done
it is atomized.





To Atomize is to reduce to tiny particles or a fine spray
It does not become a gas. It becomes an aerosol.
it is like spraying a garden hose. the water in the hose is in liquid form but when you spray if at someone at high pressure it seems to turn to gas. but you know that the liquid is just spraying out, but still a liquid

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