Pack of 12 Dropper

Dropper is a laboratory tool used to transfer small amounts of liquid with precision. It consists of a glass tube with a narrow opening at one end and a rubber or plastic bulb at the other end. The bulb is squeezed to create a vacuum, and when released, it draws liquid into the tube via suction. By gently squeezing the bulb again, the liquid can be dispensed drop by drop.

Droppers are commonly used in various chemical procedures such as titrations, where small volumes of reagents need to be added gradually to reach a specific endpoint. They are also useful for adding precise amounts of solutions or reagents to test tubes or reaction vessels. Additionally, droppers are employed in qualitative analysis to transfer small amounts of liquid samples for testing or observation.

滴管是一種實驗室工具，用於精確轉移少量液體。它由一個玻璃管組成，玻璃管的一端有一個窄口，另一端是一個橡膠或塑料球。擠壓燈泡可產生真空，釋放時通過吸力將液體吸入管中。再次輕輕擠壓球莖，液體就會一滴一滴地流出。

滴管常用於滴定等各種化學過程，在這些過程中，需要逐漸加入少量試劑以達到特定終點。滴管還可用於向試管或反應容器中添加精確量的溶液或試劑。此外，滴管還可用於定性分析，轉移少量液體樣本進行測試或觀察。