English for Chemistry
Ni Putu Rahayu Kusuma Pratiwi ID 1213031014 Class
: II A
Chemistry Education Department Faculty of Mathematics and Natural Sciences Universitas Pendidikan Ganesha 2013
Tripod Stands and Wire Gauze Chemical apparatus is necessary to perform a variety of experiments in chemical laboratory. Almost of (all) chemical apparatus are made of glass and it is (they are) fragile. But, besides that (some of them) another chemical apparatus are made of ceramic or metal. The example of chemical apparatus is beaker, funnel, (and) drop pipette, etc. The use of chemical apparatus are storing chemical, measuring the volume of chemical liquids, mixing and heating mixture, etc (change the structure). After knowing the chemical apparatus, that (it) is important to know the technique for using it and how to keep them in the right place because almost (all) of them is easy to brake. A tripod stands is one of chemical apparatus in laboratory. Tripod (It) is usual apparatus because it is often to use in every chemical experiment, especially when heating process. (This apparatus is often used in heating process). This apparatus is used to and hold various flasks, such as beaker, and other glassware. The size of this apparatus is from short into high depends on their legs. Tripod is a stand which on the top of tripod is form of a circle with diameter 13 cm and it has three legs with the high is 16 cm. Tripod is made of blend of metals, especially iron, so it is very hard and not fragile. And it is constructed in order to ease of carrying (to be easier to carry). After use (using) the tripod stands, it must be put in the right place or in the equipments’ room. Wire gauze is another example of chemical apparatus. The shape of wire gauze is flat cubicle and the size normally 16x16 cm2. This apparatus is placed between another apparatus, namely glassware and flame, because glassware should not be heated with a direct flame. It works very well when the glassware has a flat bottom, example beaker, Erlenmeyer, etc. Wire gauze is made of zinc plated wire mesh, with special covering (ceramic fibers). In a scientific setting, wire mesh is most commonly used to facilitate even heat transfer. This apparatus transmit heat very evenly and efficiently. When using it, put wire gauze on a tripod stands and you put the flame under it. After do the experiment, put wire gauze in the equipments’ room.
As a result of this, wire gauze and tripod stands are a pair or a unity of apparatus which is used for heating process. This property is especially useful when managing complicated or delicate reactions, in which very precise and even heating is crucial to the successful maintenance of the desired chemical reaction. References: Gu
Qunyi.
Unknown.
Laboratory
tripod.
Adapted
from
http://www.edulabworld.com/news/item_1373.html. ed on February 22, 2013 Yasmin Zinni. Unknown. Definitions for Chemistry Laboratory Apparatus. Adapted from http://www.ehow.com/info_8782124_definitions-chemistry-laboratory-apparatus.html. ed on February 22, 2013 CR Scientific LLC. Unknown. Wire Gauze for ring stands. Adapted from http://www.crscientific.com/wiregauze.html. ed on February 22, 2013 Gregory
Hanson.
Unknown.
What
is
Wire
Gauze?
Adapted
from
http://www.wisegeek.com/what-is-wire-gauze.htm#did-you-know. ed on February 22, 2013 Ambala
Cantt,
Haryana.
Unknown.
Lab
Equipment.
Adapted
http://www.indiamart.com/double-roptic-scientific-works/lab-equipment.html. on February 27, 2013
from
ed
Tripod and Wire Gauze Chemical apparatus is necessary to perform a variety of experiments in chemical laboratory. Almost all chemical apparatus are made of glass and they are fragile. But, some of them are made of ceramic or metal. The examples of chemical apparatus are beaker, funnel, and drop pipette. The functions of chemical apparatus are used for storing chemical, measuring the volume of chemical liquids, mixing and heating mixture. After knowing the chemical apparatus, it is important to know the technique for using it and how to keep it in the right place because almost all of them are easy to brake. A tripod is one of chemical apparatus in laboratory. This apparatus is often used in heating process. It is used to and hold various flasks, such as beaker, and other glassware. There are several sizes of this apparatus, some are small and some are big. It is consist of two parts, they are top part with circle with diameter is 13 cm and bottom part with three legs, normally is about 16 cm. Tripod is made of blend of metals, the major composition is iron, so it is very hard and not fragile. It is constructed in order to be easier to carry. After using the tripod, it must be put in the right place or in the equipments’ room. Wire gauze is another chemical apparatus. It shape is flat cubicle and the size normally is about 16x16 cm2. It is consist of two parts, they are circle with diameter is 11 cm in the middle and square part with side is 16 cm. Wire gauze is made of zinc plated wire mesh, with special covering from ceramic fibers. This apparatus is very hard. Wire mesh is commonly used to transfer heat. This apparatus transmit heat spread evenly and efficiently. When using it, put wire gauze on a tripod stands and put the flame under it. It works very well when the glassware has a flat bottom, such as beaker, Erlenmeyer, etc. After doing experiment, put wire gauze in the equipments’ room. Wire gauze and tripod are unity of chemical apparatus which is used for heating process. Those apparatus are useful when managing complicated or delicate reaction in which very precise and even heating to the successful maintenance of the desired chemical reaction.