Properties of Cork
Uses of Cork
The most familiar use is of course as a stopper for wine bottles but they will keep air out of flasks and test tubes to prevent contamination and evaporation as well. It’s also hypoallergenic which makes it good for storing food and drink.
We offer a variety of cork stopper and glassware combinations including test tubes, Erlenmeyer flasks and boiling flasks. They make attractive and economical containers for product display in businesses and food and beverage storage at home or work.
Cork is also a good insulator and conducts heat very poorly. This makes it a good material to line clamps that are used to support test tubes and flasks that need to be heated. In addition to this, its compressibility allows the 4 fingers of the clamp to be tightened to secure the glassware without risk of breaking it.
Cork is works well with very cold things. Dewars, basically big thermos bottles, are used to store liquid nitrogen and capped with cork stoppers to keep heat out.
You can also use them for holding very sharp items such as insect pins. Just stick them into an inverted stopper & use when needed.
3) Cork: properties, capabilities and applications. This 21 page paper covers everything from microscopy to chemistry to physical properties.