: a metal stand consisting of a long upright rod attached to a heavy rectangular base that is used with rings and clamps for supporting laboratory apparatus.
What is iron stand used for?
Function/Use: iron stand supports the iron ring when heating substances or mixtures in a flask or beaker (using a Bunsen burner) clamps can also be used to hold glasswares on the iron ring.
What does iron stand mean?
: a raised and usually ventilated metal stand on which a hot flatiron may be rested when not in use.
What is the purpose of wire gauze?
Wire gauze is an important piece of supporting equipment in a laboratory as glassware cannot be heated directly with the flame of a Bunsen burner, and requires the use of a wire gauze to diffuse the heat, helping to protect the glassware. Glassware has to be flat-bottomed to stay on the wire gauze.
Why is it called a retort stand?
The term retort comes by way of Middle French, but ultimately from Latin retortus, twisted back, for the shape of the neck.
What connects to a ring stand?
A ring support attaches to the stand to support other equipment. Wire gauze rests on the ring to support glassware above an alcohol burner. The triangle rests on the ring to support funnels, crucibles and evaporating dishes. The burette clamp holds burettes and test tubes.
How tall is a retort stand?
Retort Stand Base: 8″ x 5″ (200mm x 125mm); Height: 24″ (600mm)
What makes a retort stand stable?
The typical retort stand consists of a heavy base and a vertical rod, both usually made of metal. A number of accessories, such as clamps of various types and iron rings, can be attached to the rod by thumbscrews, at whatever heights and orientations are necessary to support the target equipment.
What are beakers used for?
Beakers are useful as a reaction container or to hold liquid or solid samples. They are also used to catch liquids from titrations and filtrates from filtering operations. Laboratory Burners are sources of heat.
What is the main function of burette?
Burette is a laboratory apparatus commonly used to dispense and measure variable amounts of liquid or sometimes gas within chemical and industrial testing specially for the titration process in volumetric analysis. Burettes can be specified according to their volume, resolution, and accuracy of dispensing.
What does a burette look like?
A burette is a graduated glass tube with a tap at one end, for delivering known volumes of a liquid, especially in titrations. It is a long, graduated glass tube, with a stopcock at its lower end and a tapered capillary tube at the stopcock’s outlet. … A volumetric burette delivers measured volumes of liquid.
Why does a laboratory retort stands have a heavy base?
Why does a laboratory retort stands have a heavy base? This increases the stability. The vertical line through the centre of gravity will remain within the area when the stand it tilted. and thus comes back to its initial position.
What holds a burette onto a ring stand?
Burette clamp is a scientific equipment which used specifically to hold and secure a burette on a stand, so that a burette is fixed and more convenient for the experiment. Burette clamps can be made with many materials such as plastic and cast iron.
What do you call an equipment used only to hold test tube during reaction?
A test tube holder is used to hold test tubes. It is used for holding a test tube in place when the tube is hot or should not be touched. For example, a test tube holder can be used to hold a test tube while it is being heated.
What is a Pipestem triangle made of?
Pipe stem triangles are made of iron and covered with pipe clay.
What retort means?
1 : to pay or hurl back : return retort an insult. 2a : to make a reply to. b : to say in reply. 3 : to answer (an argument) by a counter argument. intransitive verb.
How is retort made?
A retort pouch is constructed from a flexible metal-plastic laminate that is able to withstand the thermal processing used for sterilization. … The pouch is then heated to 240-250 °F (116-121 °C) for several minutes under high pressure inside a retort or autoclave machine.
Is wire gauze a bad conductor of heat?
Metal gauze does not allow heat to pass through. … Water is a poor conductor of heat.
What is gauge of a wire?
The gauge of a wire refers to its thickness. Each gauge is represented by a number, with smaller numbers representing thicker wire gauges and higher numbers signifying thinner wires.