At 12:21 PM 6/22/96 +0000, Haraldur R. Karlsson wrote:
>Dear readers,
>
>I am looking for a mixture that will yield cold trap temperatures between
>that of dry ice and a ethanol-liquid nitrogen mixture (-119C).  Does any
>one out know of mixes that yield tempeartures between -90 and -100C)?
>
>Best regards,
>
>Hal Karlsson

Dear Hal:

Here is a list for you to choose from:

Heptane/N2      -91C
Cyclopentane/N2 -93C
Hexane/N2       -94C
Toluene/N2      -95C
Methanol/N2     -98C

Best regards,

Dachun Zhang
Stable Isotope Lab Manager
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