How does that work? Some types of spray paint, as well as gasoline, will also dissolve Styrofoam. White Vinegar + Water. Polystyrene is a very inert, nonreactive substance -- one of the properties that make it so useful for packaging. The cup seems to have disappeared. WHAT IS STYROFOAM? When choosing a fish oil product, its ability to dissolve Styrofoam … Polystyrene is a light-weight material, about 95% air, with very good insulation properties and is used in all types of products from cups Acetone is a chemical that dissolves Styrofoam. "Holiday decorations can be damaged by the extreme heat in attics," says Santoro. You will need tools to scrap, saw, dissolve and pry it. Most people know it under the name Styrofoam, which is actually the trade name of a polystyrene foam product used for housing insulation. The acetone breaks up the long chain of molecules, and the air goes away, hence the volume shrinks radically. This means that it will take a larger dose of triglyceride fish oil, to get the same amount of omega-3 fatty acids. A Styrofoam cup is placed in a Petri dish of acetone. Some chemicals, however, can dissolve or eat through styrofoam, and a few of these are … Fire melts Styrofoam, also known as polyurethane. Stir the solution well, and pour it in a sprayer. There is now a thin layer of hard plastic bumps on part of the burner. Polyurethane foam, a common material used in car seats, wall insulation, mattresses and chairs, comes in a foam form that you can apply with a spray can, but it's very hard to remove. Styrofoam cups. However, you can add more vinegar in the solution if the snow is thick or taking a lot of time to melt. The air in the foam evaporates, and because Styrofoam consists mainly of air, it completely loses its structure. The ethyl ester form of fish oil (dissolves Styrofoam faster), can be more concentrated than the triglyceride form. The solvent is very flammable and can be harmful if inhaled, so use safety when conducting this experiment! Mostly extreme heat can melt any foam or plastic-like object. Polystyrene is a petroleum-based plastic. Metal bowl or pot. 'Styrofoam' is actually a polymer of styrene (vinyl benzene --- C6H5-CH=CH2). Shutterstock/ID-Art. First: Pour ½ cup of acetone into the bowl. It doesn't dissolve at all in water or alcohols either. "Delicate fabrics and items that are painted are particularly prone to damage when stored in the attic," and plastic decorations, like ornaments, may melt or warp in the heat. Your holidays might just be a lot less merry this year if you've been storing your decorations in the attic. It's possible to scrape off most of the melted styrofoam. I accidentally placed a styrofoam food container onto a still-warm electric burner. Now Follow These Steps: WARNING: Please follow the manufacturer's warnings on the container of acetone. Spray the solution on snow to melt it. 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