What is a rubber stopper?

Typically, fluid chemicals are included within opaque containers with screw-on caps, yet drug stores mix chemicals in glass test tubes as well as flasks that do not have strings whereupon to screw a cap. The rubber stopper is the perfect device for plugging these containers.

 

Purpose

The objective of these stoppers is to avoid liquids, as well as in some cases gases, from escaping their containers, as well as prevent pollutants from entering the containers.

 

Size

Rubber stoppers normally vary in size from size 000 (0.5 inches) to dimension 16 (5 inches) at the top. The tapered bottom end ranges from five-sixteenths to 3.5 inches. Smaller sized stoppers are appropriate for test tubes as well as similar glass wares; larger stoppers are appropriate for flasks as well as beakers.

 

Shape

The standard stopper is cylindrical in shape, with a conical bottom end. Some rubber stoppers include 1 or 2 openings to permit the insertion of pipettes, tubing or examination tools (e.g., a thermometer).

 

Feature

The main residential or commercial properties that make rubber suitable for usage as a lab stopper are its flexibility, chemical resistance and impermeability. Its flexibility enables it to form a limited seal versus the within the glassware. Its chemical resistance makes it secure for usage with lots of corrosive and also or else responsive compounds. Its impermeability assists to avoid the escape of fluids and gases from the container.

 

 

Rubber Stoppers

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