309:
339:
354:
279:
324:
264:
294:
424:
20:
372:
Like many other common pieces of glassware, Erlenmeyer flasks could potentially be used in the production of drugs. In an effort to reduce their proliferation by theft from education institutions where they are commonly stored, some U.S. states (including Texas) have requirements to audit and report
188:
are shaped like a tube emerging from the top of a sphere. The flasks are often long neck; sometimes they have the incision on the neck, which precisely defines the volume of flask. They can be used in distillations, or in the heating a product. These types of flask are alternatively called
Florence
169:
Distillation flasks are intended to contain mixtures that are subject to distillation, as well as to receive the products of distillation. Distillation flasks are available in various shapes. Similar to the reaction flasks, the distillation flasks usually have only one narrow neck and a ground glass
151:
Reaction flasks, which are usually spherical (i.e. round-bottom flask) and are accompanied by their necks, at the ends of which are ground glass joints to quickly and tightly connect to the rest of the apparatus (such as a reflux condenser or dropping funnel). The reaction flask is usually made of
181:
Reagent flasks are usually flat-bottomed flasks, which can thus be conveniently placed on the table or in a cabinet. These flasks cannot withstand too much pressure or temperature differences, due to the stresses which arise in a flat bottom; these flasks are usually made of weaker glass than
239:
or
Sidearm flask or Suction flask - they are a flat-bottomed flask, but made of very thick and resistant glass. They are usually a cone shape - similar to the shape of an Erlenmeyer flask, but also have side neck, usually affixed to the side, 2 / 3 up from the bottom. The flasks are used to
162:, which is a spherical flask with a ground glass opening and a hose outlet and a vacuum stopcock. The tap makes it easy to connect the flask to a vacuum-nitrogen line through the hose and to facilitate the carrying out of a reaction either in vacuum or in an atmosphere of nitrogen.
338:
182:
reaction flasks. Certain types of flasks are supplied with a ground glass stopper in them, and others that have threaded necks close with an appropriate nut or automatic dispenser. These flasks are available in two standard shapes:
49:. Flasks come in a number of shapes and a wide range of sizes, but a common distinguishing aspect in their shapes is a wider vessel "body" and one (or sometimes more) narrower tubular sections at the top called
155:
Multiple neck flasks, which can have two to five, and less commonly, six necks, each topped by ground glass connections which are used in more complex reactions that require the controlled mixing of multiple
323:
152:
thick glass and can tolerate large pressure differences, with the result that one can be kept both in a reaction under vacuum, and pressure, sometimes simultaneously. Some varieties are:
308:
221:
is a double-walled flask having a near-vacuum between the two walls. These come in a variety of shapes and sizes; some are large and tube-like, others are shaped like regular flasks.
240:
cooperate with vacuum aspirator or vacuum pumps in the vacuum filtration, or as additional security during the distillation and other processes carried out under reduced pressure.
278:
209:- is shaped like a cone, usually completed by the ground joint, the conical flasks are very popular because of their low price (they are easy to manufacture) and portability
170:
joint and are made of thinner glass than the reaction flask, so that they are easier to heat. They are sometimes spherical, test tube shaped or pear-shaped, also known as
96:, or cap for capping the opening at the top of the neck. Such stoppers can be made of glass or plastic. Glass stoppers typically have a matching tapered inner (or male)
347:— for preparing liquids with volumes of high precision. It is a flask with an approximately pear-shaped body and a long neck with a circumferential fill line.
215:
is used for preparing liquids with volumes of high precision. It is a flask with an approximately pear-shaped body and a long neck with a circumferential fill line.
353:
147:
There are several types of laboratory flasks, all of which have different functions within the laboratory. Flasks, because of their use, can be divided into:
175:
373:
unusual inventory discrepancies (not from wear or breakage). Reporting requirements also cover chemicals identified as common starting materials.
455:
253:
Many of these flasks can be wrapped in a protective outer layer of glass, leaving a gap between the inner and outer walls. These are called
1684:
1663:
243:
Culture flasks for growing cells are designed to improve aeration by including baffles that aid in mixing when placed on a shaker table.
53:
which have an opening at the top. Laboratory flask sizes are specified by the volume they can hold, typically in metric units such as
233:
are simplified distillation apparatuses, with long, down turned necks, and round bases. They have largely been replaced by condensers.
293:
1773:
1299:
389:
100:
surface, but often only of stopper quality. Flasks which do not come with such stoppers or caps included may be capped with a
390:"Memorandum of Understanding between the Texas Department of Public Safety and the Texas Higher Education Coordinating Board"
448:
428:
111:
Flasks can be used for making solutions or for holding, containing, collecting, or sometimes volumetrically measuring
1360:
1337:
332:
or sidearm flask — a thick-walled conical flask with a short hose-connection tube on the side of the neck.
1792:
1628:
1517:
858:
441:
1332:
263:
27:
1408:
1377:
1289:
1532:
863:
124:
89:
934:
1367:
1284:
748:
537:
970:
718:
687:
960:
838:
550:
224:
Evaporating flasks (for rotary evaporator) centered, pear shaped, with socket or with flange.
464:
1256:
916:
758:
116:
42:
38:
8:
944:
753:
668:
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185:
1471:
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1393:
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1218:
1154:
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1067:
888:
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246:
97:
85:
73:
45:. In laboratory and other scientific settings, they are usually referred to simply as
1739:
1729:
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1304:
1108:
939:
853:
848:
600:
287:— a flask with a spherical body and one or more necks with ground glass joints.
136:
120:
1098:
1093:
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1797:
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999:
983:
893:
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703:
595:
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317:— a flask with a round body and one longer neck without a ground glass joint.
269:
212:
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81:
23:
1032:
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773:
105:
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Powder flasks, for drying of powdered substances, pear shaped, with socket
1648:
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1228:
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1177:
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362:— a double-walled flask having a near-vacuum between the two walls.
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218:
101:
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1324:
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19:
1689:
1568:
1558:
1314:
1223:
1187:
868:
818:
200:
112:
203:
determination, approx. 100 ml, neck graduated 0 - 6 : 0,1 ml.
72:
At the opening(s) at top of the neck of some glass flasks such as
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230:
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or other processes such as mixing, heating, cooling, dissolving,
66:
1062:
423:
299:
77:
302:— a spherical vessel with a long downward-pointing neck.
1679:
1658:
62:
61:(L or l). Laboratory flasks have traditionally been made of
58:
257:; they are often used in a reaction using a cooling fluid.
1233:
532:
93:
88:. Some flasks, especially volumetric flasks, come with a
37:
are vessels or containers that fall into the category of
1784:
84:, there are outer (or female) tapered (conical)
449:
1409:Nuclear magnetic resonance (NMR) instrument
456:
442:
1774:Instruments used in medical laboratories
1255:
463:
382:
18:
1290:Inductively coupled plasma (ICP) device
1785:
1338:Transmission electron microscope (TEM)
1615:
1434:
1254:
914:
475:
437:
195:Cassia flasks, for the analysis of
13:
1333:Scanning electron microscope (SEM)
14:
1809:
417:
142:
1378:Thermogravimetric analyzer (TGA)
1188:Nuclear magnetic resonance (NMR)
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1:
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16:Type of laboratory glassware
7:
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28:Argonne National Laboratory
10:
1814:
1616:
65:, but can also be made of
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1533:Time-domain reflectometer
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1300:Liquid chromatograph (LC)
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639:
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90:laboratory rubber stopper
411:080107 thecb.state.tx.us
192:Flasks with flat bottom.
174:, due to their use with
1368:Melting-point apparatus
749:Cryogenic storage dewar
1305:Mass spectrometer (MS)
1295:Gas chromatograph (GC)
31:
1680:Acid-resistant gloves
1361:differential scanning
431:at Wikimedia Commons
22:
1793:Laboratory glassware
1257:Analytical chemistry
759:Laminar flow cabinet
465:Laboratory equipment
39:laboratory equipment
1629:Personal protective
538:Meker–Fisher burner
186:Round-bottom flasks
86:ground glass joints
74:round-bottom flasks
1472:Function generator
1455:Bench power supply
1394:Analytical balance
1155:Ostwald viscometer
1150:Graduated cylinder
889:Inoculation needle
285:Round-bottom flask
247:Beaker (glassware)
121:chemical reactions
98:ground glass joint
32:
1780:
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1740:Fire extinguisher
1730:Biosafety cabinet
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1538:Transistor tester
1528:Spectrum analyzer
1426:
1425:
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1118:Measuring devices
940:Soxhlet extractor
906:
905:
902:
901:
854:Spectrophotometer
849:Pipeclay triangle
601:Mortar and pestle
429:Laboratory flasks
427:Media related to
272:or conical flask.
82:volumetric flasks
35:Laboratory flasks
24:Erlenmeyer flasks
1805:
1637:
1636:
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1518:Network analyzer
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894:Inoculation loop
764:Microtiter plate
704:Test tube holder
596:Magnetic stirrer
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395:. Archived from
394:
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345:Volumetric flask
341:
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270:Erlenmeyer flask
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213:Volumetric flask
207:Erlenmeyer flask
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1685:Eyewash station
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1631:equipment (PPE)
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1448:Control devices
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1348:Thermochemistry
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1130:Conical measure
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879:Test tube brush
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719:Lab drying rack
678:Extension clamp
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255:jacketed flasks
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172:Kjeldahl Flasks
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80:, or sometimes
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1700:Nitrile gloves
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1590:Alligator clip
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1505:
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418:External links
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197:essential oils
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176:Kjeldahl bulbs
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143:List of flasks
141:
57:(mL or ml) or
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1268:Compositional
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786:Weighing dish
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783:Weighing boat
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508:Bunsen burner
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402:on 2018-02-27
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330:BĂĽchner flask
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237:BĂĽchner flask
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160:Schlenk flask
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125:precipitation
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1735:Fire blanket
1673:Eye and hand
1659:Rubber apron
1523:Oscilloscope
1487:Potentiostat
1414:Plate reader
1310:pH indicator
1280:CHN analyzer
1275:AutoAnalyzer
1068:Round-bottom
1024:
961:Boston round
824:Filter paper
779:Refrigerator
696:Retort stand
664:Clamp holder
660:Beaker clamp
626:Vortex mixer
621:Stirring rod
616:Static mixer
546:Teclu burner
421:
404:. Retrieved
397:the original
384:
371:
368:Legal issues
254:
251:
171:
146:
133:distillation
110:
71:
50:
46:
34:
33:
1723:Other items
1649:Face shield
1496:Measurement
1477:Galvanostat
1437:Electronics
1387:Other items
1373:Thermometer
1356:Calorimeter
1285:Colorimeter
1229:Gas syringe
1212:Other items
1140:Eye dropper
1015:Watch glass
1000:Evaporating
979:Cold finger
794:Other items
700:Screw clamp
692:Pinch clamp
681:Flask clamp
631:Wash bottle
586:Homogenizer
360:Dewar flask
219:Dewar flask
119:, etc. for
115:, samples,
102:rubber bung
55:milliliters
1787:Categories
1654:Respirator
1595:Test probe
1513:Multimeter
1325:Microscopy
1145:Eudiometer
1109:Separatory
1078:Volumetric
1043:Erlenmeyer
971:Condensers
935:Dean–Stark
884:Wire brush
844:Microscope
839:Centrifuge
814:Cork borer
769:Petri dish
744:Agar plate
731:Containers
714:Wire gauze
551:Water bath
513:Desiccator
406:2008-01-07
377:References
1745:Fume hood
1690:Glove box
1543:Voltmeter
928:Apparatus
917:Glassware
806:Autoclave
801:Aspirator
754:Incubator
688:Iron ring
611:Sonicator
581:Chemostat
523:Hot plate
156:reagents.
117:solutions
113:chemicals
108:stopper.
43:glassware
41:known as
26:from the
1644:Lab coat
1569:Tweezers
1559:Heat gun
1315:pH meter
1224:Bell jar
1104:Dropping
1058:Florence
1048:Fernbach
1010:Syracuse
869:Scoopula
819:Crucible
528:Lab oven
201:aldehyde
137:analysis
1798:Vessels
1583:General
1503:Ammeter
1203:Thistle
1160:Pipette
1135:Cuvette
1125:Burette
1094:BĂĽchner
1087:Funnels
1073:Schlenk
1053:Fleaker
1033:BĂĽchner
954:Bottles
874:Spatula
864:Stopper
834:Forceps
734:Storage
651:Holders
571:Shakers
542:Striker
490:Heaters
477:General
231:Retorts
189:flasks.
131:(as in
129:boiling
78:retorts
67:plastic
1617:Safety
1219:Beaker
1198:Thiele
1183:Cragie
1178:Drying
1099:Hirsch
1063:Retort
1025:Flasks
993:Dishes
984:Liebig
945:Kipp's
859:Splint
669:Tripod
647:Clamps
643:Stands
606:Shaker
568:Mixers
493:Dryers
300:Retort
135:), or
59:liters
47:flasks
1552:Tools
1170:Tubes
1005:Petri
400:(PDF)
393:(PDF)
63:glass
51:necks
1234:Vial
1193:Test
829:File
533:Kiln
199:and
106:cork
94:bung
104:or
1789::
139:.
127:,
92:,
76:,
69:.
457:e
450:t
443:v
409:.
178:.
30:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
