Equipment:
We offer a wide variety of adapters and liquid-transfer apparatus.
The liquid from all transfer lines exits through a stainless steel
needle. Common syringe needles equipped
with luer hubs can be used on some of supplied apparatus. However,
due to the small gauge of available needles with luer hubs, unacceptably
slow flow rate often results. Therefore, we offer transfer lines
equipped with 1/8-inch ferrule locks for special 11-gauge needles
to give a medium flow rate. In order to obtain a fast flow rate,
we recommend using one of our transfer lines or needle-tubing
connectors which is equipped with a 3/16-inch ferrule lock for
a special 7-gauge needle.
Brass adapters can be reused many times and are inert to hydrocarbon
and ether solvents. However, when corrosives are used or if acid
is used in clean-up, then stainless steel adapters must be used.
The valves on UN-Pac containers are brass and the cylinder is
as the reagents shipped are not corrosive to brass stainless steel
in the absence of atmospheric moisture.
Many customers may prefer to simply order a predesigned and fabricated
transfer system. Therefore, we offer completely assembled outlet
lines in brass and stainless steel. These are constructed of threaded
pipe and metal-braided Teflon tubing and end in either a luer
lock, 1/8-inch ferrule lock, or 3/16-inch ferrule lock for connection
to a needle which must be ordered separately. The complete list
of available transfer lines is given in Table
2 with a representative system shown in Figure
7. Technical Information Bulletin No. AL-150 gives a complete
list of available needles for these transfer lines.
Table 2: Transfer lines for liquid
removal from UN-Pac containers.
|
Pipe, valves*
flexible tubing
|
Needle
Connection**
|
Relative
flow rate
|
Catalog No.
|
|
BT
|
Luer lock
|
Slow
|
|
|
SST
|
Luer lock
|
Slow
|
|
|
BT
|
1/8-in FL
|
Medium
|
|
|
SST
|
1/8-in FL
|
Medium
|
|
|
BT
|
3/16-in FL
|
Fast
|
|
|
SST
|
3/16-in FL
|
Fast
|
|
BT-brass pipe, brass valves and brass-braided
Teflon tubing
SST-stainless steel pipe, stainless steel valves, and stainless
steel-braided Teflon tubing
FL-ferrule lock.
* Needle valve is for nitrogen flush of transfer line and requires
a septum (Catalog No. Z10,072-2
or Z12,435-4)
which must be ordered separately.
** Needle not provided; must be ordered separately.
Figure 7: Liquid-transfer, example Z15,025-8
More information about adapters, tubing and equipment
you can find in the following references.
- “Aldrich Kilo-Lab Cylinders Packing System and recommended
Transfer Procedures.”;
Aldrich Technical Information Bulletin No.
AL-149
- “Equipment for Transfer of Liquids from Aldrich Kilo-Lab
Cylinders.” ;
Aldrich Technical Information Bulletin No. AL-150.
- “Handling Air- Sensitve Reagents”;
Aldrich Technical Information Bulletin No. AL-134 (PDF, 176KB).
- “Equipment for Handling Air-Sensitive Reagents."
;
Aldrich Technical Information Bulletin No. AL-135
- “The Aldrich Sure/Pac Cylinder Packaging System and
Recommended Transfer Procedures.";
Aldrich Technical Information
Bulletin No. AL-136 (PDF, 168KB).
The foregoing discussions and procedures are given to assist our
customers in the transfer and use of our products supplied in UN-Pac
containers. The user must read this bulletin carefully, consult
the figures, and follow each step in the transfer procedure. If
you need further assistance at any time, please contact us.
chemists helping chemists in research and industry
P.O. Box 355, Milwaukee, WI
53201 USA Telephone: 414-273-3850 • 800-558-9160
Fax: 414-273-4979 • 800-962-9591 TWX: 910-262-3052
Telex: 26 843
This information is presented to assist you in evaluating our
product. It is intended for use by technically-skiIled persons.
We do not guarantee favorable results, and we assume no liability
inconnection with its use. This information is not intended as
a license to operate under, or arecommendation to infringe, any
patent covering any material or use. Not for drug, food, cosmetic
or household use.
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