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Hairspray and How it Affects our Environment

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by

Sarah Lord

on 13 November 2012

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Transcript of Hairspray and How it Affects our Environment

Hairspray And how it affects our environment Science Unit Task
By: Sarah Lord Chemical and Physical Properties of Hairspray -A light amber to off-white colour
-Odor differs by brand
-It is at the liquid state but when sprayed becomes a mist
-It is a solution Chemical and Physical Properties of the Substances used to make Hairspray 1. Polyvinylpyrrolidone (PVP)
-A polymer used in hairspray to bond all the other components together
-A light, flaky powder when dry
-Can absorb up to 40% of it's weight in atmospheric water

2. Ethanol or Water
-Used to dissolve the polymers and other chemicals to make it a solution
-Ethanol is a volatile and flammable colourless liquid
-Water is the colourless and odorless liquid which supports life

3. Propellants
-Chlorofluorocarbon (CFC)
-Made up of carbon, chlorine, hydrogen and fluorine
-Used to be used but were extrely hazardous so now they have been banned
-Hydrocarbons
-A propellant gas used to replace CFC
-Made up of hydrogen and carbon
-Still harmful to the environment
-Nitrous Oxide
-Commonly known as laughing gas
-Chemical formula is N2O
-Also used to replace CFC Uses -Used for styling hair
-First created in the 1940's What Happens When You Dispose of Hairspray Cans? Hairspray aerosol cans were created so that the hairspray and propellant gases run out at the same time. If this is the case, and you end up with a completly empty can then it is safe to recycle it. If not, your can still has propellant gases in it which are very hazardous so you need to contact your local recycling center to find the safest way to dispose of it Why is it bad for the environment? Hairspray itself isn't bad for the environment but the aersol cans that they are sold in are. In every can of hairspray, there needs to be gasses called propellants which force the hairspray out of the bottle. The main problem in hairspray cans used to be the CFC gas that as used. As of 1970, this gas was banned because of the harmful things it did. It then took decades for the whole world to get up to date with this law and in 1987, the Montreal Protocol was signed by 191 countries promising to eliminate CFC and any other extrely harmful propellant gases from commercial aerosols. Now, 90% of the world is not using CFC but the other propellant gases are still harmful to our ozone layer, just not as bad. Propellant gasses are causing depletion to the ozone layer. This means the volume of the ozone layer that surrounds the earth and protects it from the outer space is getting smaller and hairspray cans/aerosol cans are contributing to this. My Eco-Friendly Alternative Because the only thing causing the hairspray to be bad for the environment is the CFC propellant gas/ the aerosol can, there are two options to creating an environmental friendly version of this product. You could either put the hairspray in a pump bottle instead of an aerosol can, but that could cause it to lose some of it's affects because you wouldn't be getting the same misty, pressurized substance from the pump. The other alternative is to simply change the propellant gas that is used to push the hairspray out of the can. For my alternative, I'm choosing the pump spray. Because even though you could potentially lose some of the quality, it would probably be the best choice for the planet.
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