RCT®-Accessories: Filling Funnel

Product specification For THOMACHROM ® -chromatography columns. For settling of the... more

Product specification

For THOMACHROM^®-chromatography columns. For settling of the adsorbents. Serves as fluid reservoir, being either directly placed on the column (diameter 6 to 100 mm with extension piece) or connected to the column with tubing. Can be put upright for increase of the hydrostatic pressure. With glass thread GL 32.

General Information A series of chromatography columns in eight different sizes for... more

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General Information

A series of chromatography columns in eight different sizes for analytical and preparative purposes. The glass bodies are made of borosilicate glass, flange-connected on both sides, and bear fixedly two caps with the sealing O-rings belonging to it. Caps with the largest diameters of 75 and 100 mm resp. have threaded bolts made of V2A and are screwed with nuts to the end plates. Caps and end plates of smaller sizes are screwed together with threads. In this case the caps bear the sealing rings of the cooling jacket. The collars of the cooling jacket fit tightly on the sealing rings of the cooling jacket. Is no cooling jacket mounted, the sealing rings serve as shock absorbers to avoid break when the column is put down on the laboratory desk. Diameters of 75 mm and 100 mm resp. are not supplied with cooling jacket. For temperature control the use of Calorex heat-exchange and cooling tubing (item 93168) is recommended.

The bottom end plates bear a PTFE fabric with a mesh size of approx. 10 µm as support for the adsorbent material. The fabric is fixed by means of a locking ring and is placed on a PTFE grid of larger mesh size. In this grid the fluid flows with minimum dead volume to the capillary bore of the end plate.

The column end plates have thread bores for accommodation of MULTICHROM connections, the upper end plate having an additional one for the bleed screw. The central bore has an internal diameter of 1.0 mm.

The fluid contacting parts of the column, the top and bottom ends, are usually made of PVC. For use with liquids, to which these materials are not resistant, ends made of PTFE are to be used. Therefore, only these two exchange parts are required for resetting of the column, and already with the usual caps made of PVC a substantial solvent resistance is obtained. When working for a longer time with media particularly aggressive to PVC, such as chloroform, dimethylformamide etc, the glass bodies with caps made of stainless steel, PTFE or PP have to be used.

We strongly emphasize that standard seals are made of the materials FPM and NBR. It is possible to substitute certain seals for those made the material FFKM. The THOMACHROM^® system with its many combinations offers appropriate instrumental solutions for pressures up to 15 bar and for all solvents, particularly for preparative purposes.

Item	Design¹	Innen-Ø Säule mm	Inhalt ml	Länge mm	Einheit Stück	Price Euro*
93411	ST	6	100	150	1	155.00
93412	ST	9	250	220	1	209.00
93413	ST	15	250	220	1	269.00
93414	ST	20	500	300	1	280.00
93415	ST	25	1.000	350	1	362.00
93416	ST	50	2.000	450	1	488.00
93417	ST	75	5.000	600	1	559.00
93418	ST	100	5.000	600	1	680.00
934119	SR	6	100	150	1	198.00
934129	SR	9	250	220	1	236.00
934139	SR	15	250	220	1	288.00
934149	SR	20	500	300	1	313.00
934159	SR	25	1.000	350	1	417.00
934169	SR	50	2.000	450	1	543.00
934179	SR	75	5.000	600	1	603.00
934189	SR	100	5.000	600	1	701.00