Addition Funnels

Addition Funnels

Addition funnels are used in the lab to allow for the slow and controlled addition of a reagent solution to a reaction. The funnels provide the ability to control the temperature, speed and extent of the reactions. These funnels are typically cylindrical and are available with or without graduation marks for easier measuring. Some funnels feature a pressure equalizing arm and stoppers that disconnect from the funnel, leaving fluids isolated and unexposed. The funnels have ground outer joints, allowing them to securely fit into reaction flasks, and their protected drip stems do not extend beyond a standard taper joint. A stopcock at the base of an addition funnel allows for the transfer of a solution.
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1 – 28 di 28 risultati
1

Lenz Laborglasinstrumente™ Imbuti con cono NS

For the safe and easy mixing, pouring and storage of chemicals in the laboratory. Lenz Laborglasinstrumente™ Funnels with NS Cone are manufactured from durable DURAN™ borosilicate glass.

Product Type Imbuto per l'aggiunta di solidi
Materiale Vetro borosilicato
2

Imbuto con cono in vetro smerigliato Quickfit™

In vetro borosilicato Pyrex™ resistente alle sostanze chimiche. L’imbuto Quickfit™ con cono di vetro smerigliato è stato progettato per il trasferimento di polveri in fiasche e contenitori Quickfit™.

Product Type Imbuto per polveri
Materiale Vetro borosilicato Pyrex,Borosilicate Glass
Diametro (sistema metrico) parte superiore 105mm
Include Cono in vetro smerigliato Quickfit™
3

Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels

For the safe, easy and accurate transfer of fluids in the laboratory. Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels are manufactured from durable DURAN™ borosilicate glass.

4

Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels

For the safe, easy and accurate transfer of fluids in the laboratory. Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels are manufactured from durable DURAN™ borosilicate glass.

5

Imbuto in vetro Quickfit™ con rubinetto d'arresto Rotaflo™ e chiave in PTFE

Con rubinetto d'arresto GP Rotaflo™ e chiavetta in PTFE. L'imbuto in vetro Quickfit™ con rubinetto d'arresto Rotaflo™ e chiavetta in PTFE non richiede lubrificazione o grassi contaminanti ed è esente da grippaggio con soluzioni caustiche. Conforme agli standard ISO 4800 Tipo 3.

Product Type Imbuto contagocce
Materiale Vetro borosilicato Pyrex™,Borosilicate Glass
Include Rubinetto d'arresto GP Rotaflo™ con chiavetta in PTFE, cono
Certificazione/Conformità ISO 4800
6

Pyrex™ Graduated Dropping Funnel with Glass Key

Used to transfer fluids.

Graduato Yes
Product Type Dropping funnel
7

Pyrex™ Borosilicate Graduated Glass dropping Funnels with Cone and PTFE Key

Has double graduated scale showing volume of liquid contained/delivered

Product Type Dropping funnel
Materiale Borosilicate Glass
Descrizione PTFE closure
Include Cone
Certificazione/Conformità ISO 4800
8

Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels

For the safe, easy and accurate transfer of fluids in the laboratory. Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels are manufactured from durable DURAN™ borosilicate glass.

9

Lenz Laborglasinstrumente™ Cylindrical Dropping Funnel with Solid Glass Plug

Made of DURAN™ borosilicate glass. Lenz Laborglasinstrumente™ Cylindrical Dropping Funnel with Glass Plug includes pressure equalizing tubes. For use in liquid-liquid extractions to separate the components of a mixture into immiscible solvent phases of different densities.

10

Lenz Laborglasinstrumente™ Conical Dropping Funnels with PTFE Plug

Constructed from borosilicate glass. Lenz Laborglasinstrumente™ Conical Dropping Funnels with PTFE Plug are utilized in liquid-liquid extractions to separate a mixture into immiscible solvent phases of different densities.

Product Type Dropping funnel
Materiale Borosilicate Glass
11

DWK Life Sciences DURAN™ Blank for separating and dropping funnel, cylindrical with stopper bed for ISO 4800

Raw body for further processing as dropping funnel.

Quantità 10/Pk.
Autoclavabile Yes
Materiale Boro 3.3
Da utilizzare con (applicazione) Blank for further processing as dropping funnel; Phase separation
12

Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels

For the safe, easy and accurate transfer of fluids in the laboratory. Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels are manufactured from durable DURAN™ borosilicate glass.

13

Lenz Laborglasinstrumente™ Imbuti contagocce cilindrici

For the safe, easy and accurate transfer of fluids in the laboratory. Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels are manufactured from durable DURAN™ borosilicate glass.

14

Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels

For the safe, easy and accurate transfer of fluids in the laboratory. Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels are manufactured from durable DURAN™ borosilicate glass.

15

Lenz Laborglasinstrumente™ Imbuti contagocce cilindrici con tappo in vetro

For the safe, easy and accurate transfer of fluids in the laboratory. Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels, with Glass Plug are manufactured from durable DURAN™ borosilicate glass.

Graduato Yes
Product Type Dropping funnel
Materiale Borosilicate Glass
16

Lenz Laborglasinstrumente™ Dropping funnel, conical-shaped, with PTFE plug

Made of borosilicate glass. Lenz Laborglasinstrumente™ Dropping funnel, conical-shaped, with PTFE plug are used for transferring fluids. The funnel is fitted with a stopcock which allows the flow to be controlled.

Materiale Borosilicate Glass
Stopper Material PTFE
17

Lenz Laborglasinstrumente™ Conical Dropping Funnels with Glass Plug

Made of borosilicate glass. Lenz Laborglasinstrumente™ Conical Dropping Funnels with Glass Plug is used to manage the slow transfer of fluids with the featured stopcock to control the flow rate.

Product Type Dropping funnel
Materiale Borosilicate Glass
18

DWK Life Sciences DURAN™ Dropping Funnel, cylindrical, with scale, ground joint and pressure equalisation tube

The dropping funnel allows a dosed addition of solutions. Due to the pressure compensation tube a possible under- and overpressure is prevented.

Quantità 1 Ea.
Autoclavabile Yes
Materiale Boro 3.3, Polypropylene
Da utilizzare con (applicazione) Uniform and metered liquid supply to a reaction mixture; Measuring liquid amounts; Dropping funnels with a volume of 250 mL (with socket: 29/32, cone: 24/29) and 500 mL (with socket: 29/32, cone: 24/29) are special sizes and not according to DIN ISO
19

Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels

For the safe, easy and accurate transfer of fluids in the laboratory. Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels are manufactured from durable DURAN™ borosilicate glass.

20

DWK Life Sciences DURAN™ Dropping Funnel, cylindrical, with scale, and ground joint

The dropping funnel allows a dosed addition of solutions.

Quantità 1 Ea.
Autoclavabile Yes
Materiale Boro 3.3, Polypropylene
Da utilizzare con (applicazione) Uniform and metered liquid supply to a reaction mixture; Measuring liquid amounts; Dropping funnels with a volume of 250 mL (with socket: 29/32, cone: 24/29) and 500 mL (with socket: 29/32, cone: 24/29) are special sizes and not according to DIN ISO
21

Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels with PTFE plug

Made borosilicate glass. Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels with PTFE Plug are excellent for transferring liquids.

22

DWK Life Sciences DURAN™ Dropping Funnel, cylindrical, with scale

The dropping funnel allows a dosed addition of solutions.

Quantità 1 Ea.
Autoclavabile Yes
Materiale Boro 3.3, Polypropylene
Da utilizzare con (applicazione) Uniform and metered liquid supply to a reaction mixture; Measuring liquid amounts
23

Lenz Laborglasinstrumente™ Imbuti contagocce cilindrici

For the safe, easy and accurate transfer of fluids in the laboratory. Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels are manufactured from durable DURAN™ borosilicate glass.

24

Pyrex™ Imbuto con chiavetta in vetro e gambo con cono Quickfit™

Add liquid to most Quickfit™ flasks and assemblies. Pyrex™ Quickfit™ Glass Key and Stem with Cone includes stopcock with interchangeable glass key.

Product Type Dropping funnel
Materiale Pyrex Glass,Borosilicate Glass
Include Ground glass cone, stopcock with glass key
Certificazione/Conformità ISO 4800
25

Lenz Laborglasinstrumente™ Imbuti contagocce cilindrici con tappo in PTFE

Useful for transferring fluids and handling air-sensitive reagents in a sealed, inert-gas environment. Lenz Laborglasinstrumente™ Pressure Equalizing Dropping Funnels are manufactured from durable DURAN™ borosilicate glass.

Graduato Sì
Product Type Imbuto contagocce
Materiale Vetro borosilicato
26

Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels

For the safe, easy and accurate transfer of fluids in the laboratory. Lenz Laborglasinstrumente™ Cylindrical Dropping Funnels are manufactured from durable DURAN™ borosilicate glass.

27

Quickfit™ Glass Funnel with Rotaflo™ Stopcock and Open Top

Enables easy fitting to the top of Quickfit™ chromatography columns etc where protruding stem would be undesirable.

28

Imbuto in vetro Quickfit™ con rubinetto d'arresto Rotaflo™ e apertura superiore

With open top instead of socket for easy addition of solutions