Graduated Round-Bottom Glass Test Tube

This graduated round-bottomed test tube, available from Leigu in capacities ranging from 5 ml to 100 ml, is designed for routine laboratory use in containment, heating, and reaction of small reagent volumes. Made from clear glass, the tube features either a flat mouth or a rolled edge—the former facilitates sterilization, while the latter increases mechanical strength and grip. Its integrated scale allows approximate volume measurement, making it suitable for dissolving solutes, collecting gases, and serving as a centrifuge container. The round-bottomed geometry supports even heat distribution during controlled heating of solids or liquids. Common applications include small-scale synthesis, gas collection experiments, and sample preparation in analytical or teaching laboratories. This product combines functional simplicity with reliable glass construction for general-purpose experimental work.

Product Uses:

1. Containing liquid or solid reagents

2. Heating small amounts of solids or liquids

3. Making small quantities of gas reactors

4. Collecting small amounts of gas

5. Dissolving solutes of small amounts of gas, liquid, or solid

6. Used as containers during centrifugation

7. Used as reaction containers for small amounts of reagents, at room temperature or when heated