55:
31:
107:, or house vacuum. Preferably this is done through a trap (see below), which is designed to prevent the sucking back of water from the aspirator into the Büchner flask. The purpose of applying a vacuum is to speed the filtration by providing a pressure differential across the filter medium that is greater than that produced by gravity alone.
94:
The short tube and hose barb effectively act as an adapter over which the end of a thick-walled flexible hose (tubing) can be fitted to form a connection to the flask. The other end of the hose can be connected to source of
134:
The Büchner flask can also be used as a vacuum trap in a vacuum line to ensure that no fluids are carried over from the aspirator or vacuum pump (or other vacuum source) to the evacuated apparatus or vice versa.
115:
The thick wall of the Büchner flask provides it the strength to withstand the pressure difference while holding a vacuum inside. It is primarily used together with a
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46:
is attached to the flask via a black elastomer adapter. The hose barb is connected via vacuum hose to a vacuum source such as an
131:. During filtration, the filtrate enters and is held by the flask while the residue remains on the filter paper in the funnel.
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150:, who invented it, despite the mistaken belief held by many people that it's named after
224:
127:
of samples. The Büchner funnel holds the sample isolated from the suction by a layer of
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50:. The flask should be clamped before use or the hose will likely cause it to tip.
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29:
204:"The Origins of the Hirsch and Büchner Vacuum Filtration Funnels"
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353:
119:
fitted through a drilled rubber bung or an elastomer adapter (a
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74:, filter flask, suction flask, side-arm flask, or
270:
62:pointing right for attaching a vacuum source.
8:
58:Cross section of a Büchner Flask. Note the
1230:Nuclear magnetic resonance (NMR) instrument
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1085:
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732:
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123:) at the neck on top of the flask for the
27:Laboratory glassware: filtration apparatus
86:protruding about an inch from its neck.
1595:Instruments used in medical laboratories
1111:Inductively coupled plasma (ICP) device
170:
1159:Transmission electron microscope (TEM)
7:
181:sometimes causes confusion with the
1154:Scanning electron microscope (SEM)
25:
1199:Thermogravimetric analyzer (TGA)
1009:Nuclear magnetic resonance (NMR)
1:
212:Journal of Chemical Education
143:The flask is named after the
82:with a short glass tube and
1635:
1592:
1460:
1443:
1432:
1354:Time-domain reflectometer
1264:
1251:
1121:Liquid chromatograph (LC)
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1071:
744:
731:
303:
292:
1189:Melting-point apparatus
570:Cryogenic storage dewar
1126:Mass spectrometer (MS)
1116:Gas chromatograph (GC)
63:
51:
35:
1501:Acid-resistant gloves
1182:differential scanning
57:
41:
33:
1614:Laboratory glassware
1078:Analytical chemistry
580:Laminar flow cabinet
286:Laboratory equipment
177:The use of the term
78:, is a thick-walled
1619:Air-free techniques
1450:Personal protective
359:Meker–Fisher burner
225:2006JChEd..83.1283J
1293:Function generator
1276:Bench power supply
1215:Analytical balance
976:Ostwald viscometer
971:Graduated cylinder
710:Inoculation needle
233:10.1021/ed083p1283
202:(September 2006).
200:Jensen, William B.
145:industrial chemist
70:, also known as a
64:
52:
36:
1601:
1600:
1588:
1587:
1584:
1583:
1561:Fire extinguisher
1551:Biosafety cabinet
1539:
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1424:
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1359:Transistor tester
1349:Spectrum analyzer
1247:
1246:
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1066:
1063:
1062:
939:Measuring devices
761:Soxhlet extractor
727:
726:
723:
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675:Spectrophotometer
670:Pipeclay triangle
422:Mortar and pestle
16:(Redirected from
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1458:
1445:
1434:
1339:Network analyzer
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1253:
1086:
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715:Inoculation loop
585:Microtiter plate
525:Test tube holder
417:Magnetic stirrer
305:
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235:. Archived from
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80:Erlenmeyer flask
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1576:Solvent cabinet
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1506:Eyewash station
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1452:equipment (PPE)
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1303:Pulse generator
1269:Control devices
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1169:Thermochemistry
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951:Conical measure
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700:Test tube brush
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595:Picotiter plate
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540:Lab drying rack
499:Extension clamp
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1571:Safety cabinet
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1531:Safety goggles
1528:
1526:Safety glasses
1523:
1521:Nitrile gloves
1518:
1516:Medical gloves
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1329:Logic analyzer
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1281:Current source
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859:Vacuum (Dewar)
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505:Funnel support
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412:Liquid whistle
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377:Vacuum dry box
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339:Heating mantle
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324:Alcohol burner
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159:Eduard Buchner
156:Nobel Laureate
140:
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117:Büchner funnel
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44:Büchner funnel
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1485:Safety shower
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1395:Wire stripper
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1089:Compositional
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638:
636:
633:
631:Balance brush
630:
628:
625:
623:
620:
619:
617:
613:
607:Weighing dish
606:
604:Weighing boat
603:
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495:Burette clamp
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329:Bunsen burner
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242:on 2007-03-15
238:
234:
230:
226:
222:
218:
214:
213:
205:
201:
197:
196:
191:
184:
183:thermos flask
180:
174:
171:
164:
162:
160:
157:
153:
149:
148:Ernst Büchner
146:
138:
136:
132:
130:
126:
122:
118:
110:
108:
106:
102:
98:
89:
87:
85:
81:
77:
73:
69:
68:Büchner flask
61:
56:
49:
45:
40:
34:Büchner flask
32:
19:
18:Buchner flask
1556:Fire blanket
1494:Eye and hand
1480:Rubber apron
1344:Oscilloscope
1308:Potentiostat
1235:Plate reader
1131:pH indicator
1101:CHN analyzer
1096:AutoAnalyzer
889:Round-bottom
853:
782:Boston round
645:Filter paper
600:Refrigerator
517:Retort stand
485:Clamp holder
481:Beaker clamp
447:Vortex mixer
442:Stirring rod
437:Static mixer
367:Teclu burner
244:. Retrieved
237:the original
216:
210:
179:vacuum flask
178:
173:
142:
133:
129:filter paper
121:Büchner ring
120:
114:
93:
76:Bunsen flask
75:
72:vacuum flask
71:
67:
65:
1544:Other items
1470:Face shield
1317:Measurement
1298:Galvanostat
1258:Electronics
1208:Other items
1194:Thermometer
1177:Calorimeter
1106:Colorimeter
1050:Gas syringe
1033:Other items
961:Eye dropper
836:Watch glass
821:Evaporating
800:Cold finger
615:Other items
521:Screw clamp
513:Pinch clamp
502:Flask clamp
452:Wash bottle
407:Homogenizer
219:(9): 1283.
105:vacuum pump
99:such as an
90:Description
1608:Categories
1475:Respirator
1416:Test probe
1334:Multimeter
1146:Microscopy
966:Eudiometer
930:Separatory
899:Volumetric
864:Erlenmeyer
792:Condensers
756:Dean–Stark
705:Wire brush
665:Microscope
660:Centrifuge
635:Cork borer
590:Petri dish
565:Agar plate
552:Containers
535:Wire gauze
372:Water bath
334:Desiccator
246:2006-09-08
192:References
125:filtration
1566:Fume hood
1511:Glove box
1364:Voltmeter
749:Apparatus
738:Glassware
627:Autoclave
622:Aspirator
575:Incubator
509:Iron ring
432:Sonicator
402:Chemostat
344:Hot plate
111:Operation
101:aspirator
84:hose barb
60:hose barb
48:aspirator
1465:Lab coat
1390:Tweezers
1380:Heat gun
1136:pH meter
1045:Bell jar
925:Dropping
879:Florence
869:Fernbach
831:Syracuse
690:Scoopula
640:Crucible
349:Lab oven
1404:General
1324:Ammeter
1024:Thistle
981:Pipette
956:Cuvette
946:Burette
915:Büchner
908:Funnels
894:Schlenk
874:Fleaker
854:Büchner
775:Bottles
695:Spatula
685:Stopper
655:Forceps
555:Storage
472:Holders
392:Shakers
363:Striker
311:Heaters
298:General
221:Bibcode
152:chemist
1438:Safety
1040:Beaker
1019:Thiele
1004:Cragie
999:Drying
920:Hirsch
884:Retort
846:Flasks
814:Dishes
805:Liebig
766:Kipp's
680:Splint
490:Tripod
468:Clamps
464:Stands
427:Shaker
389:Mixers
314:Dryers
97:vacuum
1373:Tools
991:Tubes
826:Petri
240:(PDF)
207:(PDF)
165:Notes
1055:Vial
1014:Test
650:File
354:Kiln
154:and
139:Name
229:doi
1610::
227:.
217:83
215:.
209:.
161:.
103:,
66:A
42:A
278:e
271:t
264:v
249:.
231::
223::
20:)
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