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Introduction ot apparatus

Introduction ot apparatus

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Introduction ot apparatus

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  1. Special English for Chemistry and Applied Chemistry Peigao Duan :15239195743 :48850674 2019/11/12 1

  2. Unit 1 Laboratory Apparatus(Mainly Glassware) test tube brush test tubes test tube holder test tube rack[ræk] stirring['stɜ:riŋ] rod beaker ['bi:kə] 3 2019/11/12

  3. thermometer[θə'mɔmitə] Celsius['selsi:əs] boiling flask Florence flask Fahrenheit['færənhait]] flask, round bottom, four-neck flask, round bottom, two-neck boiling flask-3-neck 4 2019/11/12

  4. Mohr burette ground joint Geiser burette [bjuə'ret] (stopcock) (with pinchcock) Petri dish watch glass Evaporating[[i'væpəreitiŋ]]dish cell culture dish 5 2019/11/12

  5. graduated cylinder['silində] conical[['kɔnikəl] ] flask wide-mouth bottle measuring cylinder volumetric flask gas measuring tube Mohr measuring pipette [pai'pɛt] ] 6 2019/11/12

  6. long-stem funnel funnel ['fΛnəl] filter funnel separator ['sepərətəri] funnel Hirsch funnel Büchner ['buknə] funnel 7 2019/11/12

  7. wash bottle Thiele[ei:l] melting point tube filter flask medicine dropper rubber pipette bulb pipet [pi'pet] 8 2019/11/12

  8. mortar ['mC:tə] and pestle ['pestl] chemical spoon[spun] microspatula ['spætʃələ] agate porcelain filter paper Medium speed filter paper Bunsen ['bΛnsn] burner burette stand 本生(1811-1899,德国化学家) 9 2019/11/12

  9. distilling [dis'tiliŋ] head support ring ring stand distilling tube distilling tube, three bulbs side-arm distillation [,disti'leiʃən] flask 10 2019/11/12

  10. Claisen distilling head air condenser fractionating ['frækʃəneitiŋ] column rectification Allihn [5Alin] condenser; condenser-Allihn type Liebig ['li:big] condenser; 11 2019/11/12

  11. Graham [greiəm] condenser centrifuge ['sentrifju:dʒ] tube Dimroth condenser crucible tongs [tCŋz] beaker tongs crucible ['kru:sibl] Porcelain[['pɔ:slin]] 12 2019/11/12

  12. utility clamp burette clamp economy extension clamp[klæmp] screw clamp pinchcock; pinch clamp desiccator ['desikeitə] desiccant silica gel 13 2019/11/12

  13. goggles ['gCglz] wire gauze [gC:z] stopcock 14 2019/11/12

  14. A test tube, also known as a culture tube or sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing, open at the top, usually with a rounded U-shaped bottom.

  15. It is a device, made with nylon bristles attached to atwisted-wire shaft, used to knock the bottoms out of test tubes.

  16. The test tube holder is a piece of laboratory equipment that is used to hold test tubes. They are made out of metal and are used by squeezing the handles to open the other end, and inserting the test tube. Test tube holders are typically used when heating the test tube is necessary, or for when caustic materials are being handled.

  17. A beaker is a simple container for stirring, mixing and heating liquids commonly used in many laboratories. Beakers are generally cylindrical in shape, with a flat bottom. Most also have a small spout to aid pouring as shown in the picture. Beakers are available in a wide range of sizes, from one millilitre up to several litres.

  18. Since a test tube has a rounded bottom, it cannot stand by itself; the rack is a convenient and necessary piece of laboratory equipment for the storage of test tubes.

  19. A stirring rod or stir rod is a piece of laboratory equipment used to mix chemicals and liquids for laboratory purposes. They are usually made of solid glass, about the thickness and slightly longer than a drinking straw, with rounded ends.

  20. A thermometer is a device that measures temperature or temperature gradient using a variety of different principles. A thermometer has two important elements: the temperature sensor in which some physical change occurs with temperature, plus some means of converting this physical change into a numerical value.

  21. A boiling flask is a type of flask used as an item of laboratory glassware. It is used as a container to hold liquids. A boiling flask has a round bottom with a single long neck. It is designed for uniform heating and ease of swirling.

  22. A Florence flask is a type of flask used as an item of laboratory glassware. It is used as a container to hold liquids. A Florence flask has a flat bottom with a single long neck. It is designed for uniform heating and ease of swirling; They are often made of borosilicate glass to prevent cracks or defacing of the glass.

  23. flask, round bottom, two-neck:A round bottom flask with two-neck, which is generally used for distillation experiment.

  24. Biling flask-3-neck:It is generally used for synthesis of organic compound or conducting complex boiling, fractionation and purification, and always connect with thermometer, condenser pipe, agitator, separatory funnel or other equipment.

  25. Round-bottom flasks are often used to contain chemical reactions run by chemists, especially for reflux set-ups and laboratory-scale synthesis

  26. Its uses is similar to boiling flask-3-neck. The difference is an excess interface.

  27. A glassware instrument with two kinds of matte interfaces which used for connecting different glass apparatus.

  28. It is a quantitative long glass tube with a stopcock near the bottom . It is mainly used for titration.

  29. A kind of burette with rubber neck. It used for Alkaline solution titration.

  30. A watch glass is a circular, slightly convex-concave piece of glass used in chemistry as a surface to evaporate a liquid, to hold solids while being weighed, or as a cover for a beaker. The latter use is generally applied to prevent dust or other particles entering the beaker; the watch glass does not completely seal the beaker, and so gas exchanges still occur.

  31. An evaporating dish is a piece of laboratory glassware used for the evaporation of solids and supernatant fluid,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.

  32. An Erlenmeyer flask, also known as a conical flask, is a widely used type of laboratory flask which features a flat bottom, a conical body, and a cylindrical neck. It is named after the German chemist Emil Erlenmeyer, who created it in 1861. ['ə:lənmaiə]

  33. A Petri dish is a shallow glass or plastic cylindrical lidded dish that biologists use to culture cells or small moss plants. It was named after German bacteriologist Julius Richard Petri, who invented it when working as an assistant to Robert Koch. Glass Petri dishes can be reused by sterilization (for example, in an autoclave or by dry heating in a hot air oven at 160 °C for one hour). For experiments where cross-contamination from one experiment to the next can become a problem, plastic Petri dishes are often used as disposables. [bækֽtɪərɪə'ɔlədʒɪst] [sterilai'zeiʃən]

  34. That is a bottle or jar, that has a mouth that is as wide as or nearly as wide as the diameter.

  35. A graduated cylinder, measuring cylinder or mixing cylinder is a piece of laboratory equipment used to measure the volume of a liquid. Graduated cylinders are generally more accurate and precise than laboratory flasks and beakers. However, they are less accurate and precise than volumetric glassware, such as a volumetric flask or volumetric pipette. For these reasons, graduated cylinders should not be used to perform volumetric analysis. Graduated cylinders are sometimes used to indirectly measure the volume of a solid by measuring the displacement of a liquid.

  36. Manufactured in borosilicate glass with black enamel markings. Used for measuring the volume of evolved gasses, and the volume of absorbed gas. [ֽbɔ:rəu'silikit]

  37. A Mohr pipette, also known as a Graduated pipette, is a type of pipette used to measure the volume of the liquid dispensed, although not as accurately as a volumetric pipette. These use a series of marked lines (as on a graduated cylinder) to indicate the different volumes. They come in a variety of sizes, and are used much like a burette, in that the volume is found by calculating the difference of the liquid level before and after.

  38. A volumetric flask (measuring flask or graduated flask) is a piece of laboratory glassware, a type of laboratory flask, calibrated to contain a precise volume at a particular temperature. Volumetric flasks are used for precise dilutions and preparation of standard solutions. These flasks are usually pear-shaped, with a flat bottom, and made of glass or plastic. The flask's mouth is either furnished with a plastic snap/screw cap or fitted with a joint to accommodate a polytetrafluoroethylene or glass stopper. The neck of the volumetric flasks is elongated and narrow with an etched ring graduation marking.

  39. A funnel is a pipe with a wide mouth, good for feeding, often conical mouth and a narrow stem. It is used to channel liquid or fine-grained substances into containers with a small opening. Without a funnel, spillage would occur.

  40. A funnel with a long stem (the straight part below the cone shaped part). Used for transfering liquids to containers with small openings.

  41. A filter funnel is a laboratory funnel used for separating solids from liquids via the laboratory process of filtering.

  42. A Büchner funnel is a piece of laboratory equipment used in filtration. It is traditionally made of porcelain, but glass and plastic funnels are also available. On top of the funnel-shaped part there is a cylinder with a perforated plate separating it from the funnel. The Hirsch funnel has a similar design; it is used similarly, but for smaller quantities of material. The main difference is that the plate is much smaller, while the walls of the funnel angle outward instead of being vertical.

  43. Hirsch funnels are essentially smaller buchner funnels and meant for filtering smaller amounts.

  44. A separatory funnel, also known as separation funnel. Separating funnel is a piece of laboratory glassware used in liquid-liquid extractions to separate the components of a mixture into two immiscible solvent phases of different densities.

  45. A flask that is used for receiving a filtering liquid and that is usually of heavy-walled glass and is often provided with a side tube to connect with a suction pump

  46. The Thiele tube, named after the German chemist Johannes Thiele, is a laboratory glassware designed to contain and heat an oil bath. Such a setup is commonly used in the determination of the melting point of a substance. The apparatus itself resembles a glass test tube with an attached handle.

  47. A wash bottle is a squeeze bottle with a nozzle, used to rinse various pieces of laboratory glassware, such as test tubes and round bottom flasks.

  48. A medicine dropper is an instrument used to measure small amount of liquids, usually in milligrams. You will first pinch the handle before you submerge it in the water.