Maximum Temperatures of Packed Columns–Porous Polymers

We often get asked about the maximum temperature limit of our packed columns, so I decided to write a post series that will provide this information for the majority of the packed columns which we sell.  I thought I would start with the least complicated packed columns, those whose packings are typically not coated with a liquid phase.  These packings include porous polymers.

For this post, I will only be focusing on HayeSep, Porapak, and Tenax packings.  I decided not to include Chromosorb porous polymers because they are either in short supply or currently unavailable.

I am going to make the following assumption:  The column’s maximum temperature is limited to the packing, and not the column's tubing; end plugs; fittings/adaptors; and/or ferrules used for installation. If you have a packed column that includes nonmetal tubing or end plugs other than glass wool or metal, contact Restek.

Please note:  The catalog (part) numbers shown below are just for the packing and not any packed column.

Keep watching for future posts on maximum temperatures of packed columns.  Thank you.

HayeSep Packing Materials

Description	temp. limits	g/btl.	Mesh 60/80 cat.#	Mesh 80/100 cat.#	Mesh 100/120 cat.#
HayeSep A	165 °C	24 g	N/A	25032	25033
HayeSep B	190 °C	24 g	N/A	N/A	N/A
HayeSep C	250 °C	24 g	Not Available–Contact your local Restek Representative for suggested replacement.
HayeSep D	290 °C	24 g	25563	25038	25039
HayeSep DIP	290 °C	24 g	N/A	N/A	N/A
HayeSep DB	290 °C	24 g	N/A	25568	N/A
HayeSep DOX	(Use HayeSep DB)
HayeSep N	165 °C	24 g	25570	25045	25046
HayeSep P	250 °C	24 g	Not Available–Restek recommends Porapak P as a replacement.
HayeSep Q	275 °C	24 g	25572	N/A	25050
HayeSep R	250 °C	24 g	Not Available–Restek recommends Porapak R as a replacement.
HayeSep S	250 °C	24 g	N/A	N/A	25054
HayeSep T	165 °C	24 g	25575	N/A	25056

Porapak Packing Materials

Description	temp. limits	g/btl.	Mesh 50/80 cat.#	Mesh 80/100 cat.#	Mesh 100/120 cat.#
Porapak P	250 °C	20 g	Available as Custom–Contact your local Restek Representative for ordering information.
Porapak PS	250 °C	20 g
Porapak Q	250 °C	26 g
Porapak QS	250 °C	26 g
Porapak R	250 °C	24 g
Porapak S	250 °C	26 g
Porapak N	190 °C	29 g
Porapak T	190 °C	31 g

Tenax Packing Materials

Description	temp. limits	g/btl.	Mesh 60/80 cat.#	Mesh 80/100 cat.#
Tenax-TA	350 °C	10 g	25550	25551
Tenax-GR	350 °C	10 g	Not Available–Contact your local Restek Representative for suggested replacement.