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I just got an email from Dr. Keith P. Madden, who is virtually the
only source that we previously had for information at all on
TEMPONE.
He gives a couple of sources for the substance which I will check
out when I get time and additionally states:
"...TEMPONE (4-oxo-2,2,6,6-tetramethyl-1-piperidinyloxy) ... is a
stable free radical, in the form of a crystaline powder at room
temperature. It is soluble in water, and many organic solvents.
One gram lists for $25.30."
I will probably not buy too many grams at that price and also I have
come to the conclusion that it is probably not suitable for the
usage of the majority of the members of this Forum for a number of
reasons. Firstly, I now have the idea (belief) that it is only
necessary in magnetometers where constant polarization is required.
Also I have been told that is not stable. (I do NOT understand Dr.
Madden's comment about being a "stable free radical" because I do
NOT know what that is.) Additionally, I have been told that
commercial units which use this substance have to go back to the
factory periodically to have the TEMPONE renewed.
Additional comments would be appreciated from other Forum members.
Best regards to all.
Dale
[email protected]
103 North Sixth Avenue
Virginia, MN 55792 USA
only source that we previously had for information at all on
TEMPONE.
He gives a couple of sources for the substance which I will check
out when I get time and additionally states:
"...TEMPONE (4-oxo-2,2,6,6-tetramethyl-1-piperidinyloxy) ... is a
stable free radical, in the form of a crystaline powder at room
temperature. It is soluble in water, and many organic solvents.
One gram lists for $25.30."
I will probably not buy too many grams at that price and also I have
come to the conclusion that it is probably not suitable for the
usage of the majority of the members of this Forum for a number of
reasons. Firstly, I now have the idea (belief) that it is only
necessary in magnetometers where constant polarization is required.
Also I have been told that is not stable. (I do NOT understand Dr.
Madden's comment about being a "stable free radical" because I do
NOT know what that is.) Additionally, I have been told that
commercial units which use this substance have to go back to the
factory periodically to have the TEMPONE renewed.
Additional comments would be appreciated from other Forum members.
Best regards to all.
Dale
[email protected]
103 North Sixth Avenue
Virginia, MN 55792 USA