6. Distillation, Separation, Filtration Distillation, Synthesis/Components for Extraction

GENERAL CATALOGUE EDITION 20 6. Distillation, separation, filtration Distillation, synthesis/Components for Extraction

1 Separating funnels with screw cap, Type 4301, FEP 1 Transparent. Teflon® FEP, Tefzel® ETFE stopcock and ETFE screw cap. Impact resistant. Thermo Scientific Non-wetting surfaces ensure no liqiud residue adhesion. Chemically stable. Length of stem under stopcock 65 mm. Autoclavable.

Type Capacity Screw cap PK Cat. No. diam. ml mm 4301 125 28 1 9.203 531 4301 250 33 1 9.203 532 4301 500 43 1 9.203 533 4301 1000 53 1 9.203 534 4301 2000 53 1 9.203 535 Teflon® and Tefzel® are registered trademark of DuPont.

2 Separating funnel holder PP 2 Manufactured from best quality polypropylene. Suitable to hold all types of laboratory ISOLAB funnels and also separatory funnels with diameter up to 150 mm. Two tapered wedges are provided to ensure firm grip.

Description PK Cat. No.

Separating funnel holder 1 9.251 559

Support ring please see page 169.

3 Water estimator to Dean Stark, borosilicate glass 3.3 3 Manufactured from borosilicate glass 3.3 according to DIN 12420. Suitable for xylol ISOLAB method. System completed with 500 ml (NS 29/32) flask + Liebig condenser with jacket length 400 mm + measuring tube (10:0.1 ml) with PTFE stopcock.

Description PK Cat. No.

Water estimator to Dean Stark 1 9.303 005

4 Extractors acc. to Knöfler-Böhm, DURAN® tubing 4 The condensate passes the extraction sample and flows back into the flask continuously Lenz without interrupting the extraction process, i.e. the solvent is recirculated continuously. The complete apparatus consists of: Jacketed extractor head made of DURAN® tubing, Dimroth condenser with thread GL 14, made of DURAN® tubing, Round bottom flask material: DURAN®

Round bottom flasks Extractor Condenser PK Cat. No. Capacity ml ml NS 100 30 29/32 1 6.237 313 250 150 45/40 1 6.237 312 500 250 45/40 1 9.043 010 1000 500 60/46 1 9.043 020

5 Soxhlet extractors, without stopcock 5 Borosilicate glass 3.3 which is resistant to heat and almost all chemicals. They meet the ISOLAB highest quality standards according to DIN 12602.

Capacity Cone Socket PK Cat. No. mlwww.wenk-labtec.comNS NS 30 29/32 29/32 1 4.008 417 70 29/32 34/35 1 4.008 418 100 29/32 45/40 1 4.008 419 150 29/32 45/40 1 4.008 420 250 29/32 45/40 1 4.008 421 500 29/32 45/40 1 6.243 673

For complete distillation system please see page 1252.