Definition of Crucible Tongs
They have insulated grips for safety purposes. These tongs are usually made from brass, nickel, and stainless steel. Tongs were even made from platinum, since this metal can very well handle the heat.
Accordingly, are all desiccators made of glass?
Operation. In laboratory use, the most common desiccators are circular and made of heavy glass. There is usually a removable platform on which the items to be stored are placed. The desiccant, usually an otherwise-inert solid such as silica gel, fills the space under the platform.
Just so, how do rig tongs work?
Rig tongs are used for one of two things; to either breakout or makeup casing, tubing or drill pipers. … The first set of tongs is tied to the derrick with a cable or chain, while the second set is pulled with mechanical catheads.
How does a tong work?
Tongs are a type of tool used to grip and lift objects instead of holding them directly with hands. … Tongs that have long arms terminating in small flat circular ends of tongs and are pivoted at a joint close to the handle used to handle delicate objects.
What are beaker tongs used for in chemistry?
Use beaker tongs to handle hot beakers. These nickel-plated steel tongs are 25 cm (10″) long and have plastic coated jaws that open up to 11 cm (4.5″). They can hold beakers ranging from 100 ml up to 1000 ml.
What are laboratory tongs for?
Tools used to grip and lift objects instead of holding them directly with hands; available in a variety of shapes and with a range of prong counts for specialized applications including holding crucibles, beakers, or flasks.
What are Tong dies?
While running in or pulling out tubulars at oil rigs the joints (tool joints) are tightened or loosened with the help of manual tongs or power tongs. Dies are the principal element in the Manual Tongs and Power Tongs which carry out the job of gripping the tool joints, before torque application.
What do tongs measure?
A tong line pull gauge measures true force (force/pounds), so what you see on the gauge is exactly what’s being applied to the pipe. Basically, it’s the what-you-see-is-what-you-get gauge.
What is a crucible used for in chemistry?
Used from ancient times as a container for melting or testing metals, crucibles were probably so named from the Latin word crux, “cross” or “trial.” Modern crucibles may be small laboratory utensils for conducting high-temperature chemical reactions and analyses or large industrial vessels for melting and calcining …
What is the best glassware for measuring?
Volumetric Glassware
Volumetric pipets, flasks and burets are the most accurate; the glassware makers calibrate these to a high level of accuracy. The accuracy is usually measured in terms of the tolerance, which is the uncertainty in a measurement made with the glassware.
What is the use of metal tong?
Uses of Crucible Tongs
Crucible tongs are the safety instruments that are generally used to hold hot objects and containers that contain toxic chemicals. 3. They are prominently used in metal industries to handle the objects placed in furnaces and ovens.
What is Tong chemistry?
Laboratory tongs are large pincers for grasping and lifting vessels of heat-resistant material used in high temperature chemical reactions. Tongs differ in shape are designed to pick up laboratory items including, hot evaporating dishes, beakers, crucibles, and other laboratory apparatuses.
Which equipment is used for drying crucible?
The desiccator contains desiccant to absorb moisture from the air inside, so the air inside will be completely dry.
Why do you handle the crucible with clean tongs?
Handling the crucible and its cover with tongs is much safer because the crucible and its cover would still be very hot after the Bunsen burner has…