Glass Stirring Rods
Each size comes in a pack of 5.
Stir rods are used as part of proper laboratory technique when decanting supernatants because the contact helps to negate the adhesion between the side of the glassware and the supernatant. Using a stir rod also grants more control over the rate of flow, which is important in cases where chemicals may react violently. Glass rods can also be used to induce crystallization in a recrystallization procedure, when they are used to scratch the inside surface of a test tube or beaker. They can also break up an emulsion during an extraction.