Search results
Results from the WOW.Com Content Network
Since crucible tongs work with the crucible, one must know the safety procedures of the crucible. Before using the crucible, make sure that it is dry; Fill the crucible with sample chemicals to only 1/2 or 2/3, do not fill until it is full; If the user used the crucible to fuse the glass, waiting for the crucible to cool down before cleaning it ...
Tongs in which the pivot or joint is placed close to the gripping ends are used to handle hard and heavy objects. Driller's round tongs, blacksmith's tongs or crucible tongs are of this type. A myth contained in the classical Jewish text Pirkei Avot states that the first pair of tongs was created by God right before God rested on the Seventh ...
Surgical forceps are commonly made of high-grade carbon steel, which ensures they can withstand repeated sterilization in high-temperature autoclaves. Some are made of other high-quality stainless steel, chromium and vanadium alloys to ensure durability of edges and freedom from rust. Lower-quality steel is used in forceps made for other uses.
Pages in category "Laboratory equipment" The following 200 pages are in this category, out of approximately 259 total. This list may not reflect recent changes .
"Tall-form" (B) beakers have a height about twice their diameter. [3] These are sometimes called Berzelius beakers, after Jöns Jacob Berzelius, and are mostly used for titration. [5] Flat beakers (C) are often called "crystallizers" because most are used to perform crystallization, but they are also often used as a vessel for use in hot-bath ...
Crucible An evaporating dish is a piece of laboratory glassware used for the evaporation of solutions and supernatant liquids, [ a ] and sometimes to their melting point . Evaporating dishes are used to evaporate excess solvents – most commonly water – to produce a concentrated solution or a solid precipitate of the dissolved substance.
A separatory funnel, also known as a separation funnel, separating funnel, or colloquially sep funnel, is a piece of laboratory glassware used in liquid-liquid extractions to separate (partition) the components of a mixture into two immiscible solvent phases of different densities. [1]
It is used for holding a test tube in place [2] when the tube is hot or should not be touched. [3] For example, a test tube holder can be used to hold a test tube while it is being heated. [ 4 ] Moreover, when heating the tube with liquid or solid contained inside, the holder ought to tightly hold a test tube [ 5 ] in order for the tube to be ...