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Restek Molesieve 5A

Posted: Mon Jan 14, 2013 6:47 am
by mkonar2012
has anyone used Restek Molesive 5A? what is the packing material? need for conditioning... many thanks

Re: Restek Molesieve 5A

Posted: Mon Jan 14, 2013 9:44 am
by chromatographer1
If Restek describes it as Molesieve 5A then it should be molecular sieve 5A.

This is a calcium alumino silicate which is capable of absorbing about 20% water by weight.

Proper conditioning to remove water should be done slowly by passing a dry gas through the mineral particles and increasing the temperature slowly to 200°C or higher when/if indicated by the amount of resolution of O2 and N2 when a sample of air is passed through the mineral particles.

best wishes,

Rod