Need Thermal Expansion Coefficients for Specific Stable Isotopes

[p***@gmail.com]

Need Thermal Expansion Coefficients for Specific Stable Isotopes

Hello - I need the thermal expansion coefficient for specific stable
isotopes if possible. Particularly Zinc-64, Platinum-190, Platinum-192
and Platinum-194. Any questions asking "why" or "what for" will be
ignored. If such a reference exists, I can seek it out but would need
name. Getting exact figures would be wonderful!

Thank you

[d***@hotmail.com]

Post by p***@gmail.com
Need Thermal Expansion Coefficients for Specific Stable Isotopes
Hello - I need the thermal expansion coefficient for specific stable
isotopes if possible. Particularly Zinc-64, Platinum-190, Platinum-192
and Platinum-194. Any questions asking "why" or "what for" will be
ignored. If such a reference exists, I can seek it out but would need
name. Getting exact figures would be wonderful!
Thank you

It looks like you will need to buy samples of isotopically pure
Zinc-64, Platinum-190, Platinum-192 and Platinum-194, and measure the
CTE, yourself. This will be astronomically expensive. The isotope
effect on thermal expansion is well known but hard to measure. If the
values you want were tabulated, your best bet would be to search the
NIST website at http://www.nist.gov/, which I have done with no
success.

WHAT, exactly are you doing, designing a nuclear device? If so and if
the values are in the open literature, your best bet would be to
search the Los Alamos National Laboratory website at http://www.lanl.gov/

Good luck and don't get caught.

[beavith]

Post by d***@hotmail.com
It looks like you will need to buy samples of isotopically pure
Zinc-64, Platinum-190, Platinum-192 and Platinum-194, and measure the
CTE, yourself. This will be astronomically expensive. The isotope
effect on thermal expansion is well known but hard to measure. If the
values you want were tabulated, your best bet would be to search the
NIST website at http://www.nist.gov/, which I have done with no
success.
WHAT, exactly are you doing, designing a nuclear device? If so and if
the values are in the open literature, your best bet would be to
search the Los Alamos National Laboratory website at http://www.lanl.gov/
Good luck and don't get caught.

why would you even offer some ideas to this clown?

[d***@hotmail.com]

Post by beavith

Post by d***@hotmail.com
Good luck and don't get caught.

why would you even offer some ideas to this clown?

Best I can tell, he's posting from somewhere near Thailand, so let the
Thai authorities track him down.

[d***@hotmail.com]

Post by p***@gmail.com
Need Thermal Expansion Coefficients for Specific Stable Isotopes
Hello - I need the thermal expansion coefficient for specific stable
isotopes if possible. Particularly Zinc-64, Platinum-190, Platinum-192
and Platinum-194.

If you wanted to buy these "pure" isotopes, you might try Medical
Isotopes, Inc. (super expensive). This is the webpage for their metal
isotopes:

http://www.medicalisotopes.com/search_cat.asp?find=10

However, note that only Zinc-64 and Platinum-194 are available with
sufficient isotopic purity to get a reasonably accurate measure of the
isotope effect on the thermal expansion coefficient. Isotopically
"pure" Platinum-190 and Platinum-192 are not available in macroscopic
commercial quantities and hence their thermal expansion coefficients
are most likely unknown. If you can settle for the thermal expansion
coefficients of Zinc-64 and Platinum-194, your best bet might be to
contact Medical Isotopes, Inc. and ask them.

The isotope effect (on anything) is greatest for light nuclei. The
(linear) thermal expansion coefficient of natural platinum is only
known to two significant figures, 8.8 �m�m^ 1�K^ 1. It is unlikely
that the isotope effect on the thermal expansion coefficient of
platinum isotopes will be greater than that uncertainty. Just my
opinion.

[d***@hotmail.com]

Post by d***@hotmail.com
known to two significant figures, 8.8 �m�m^ 1�K^ 1.

Should be 8.8 �m�m^-1�K^-1.

[Shankar Bhattacharyya]

Isotopically "pure" Platinum-190 and Platinum-192 are not available
in macroscopic commercial quantities and hence their thermal
expansion coefficients are most likely unknown.

Why ever not? I assumed everyone had at least a semi-prep mass spec.


- Shankar

[d***@hotmail.com]

Post by Shankar Bhattacharyya

Isotopically "pure" Platinum-190 and Platinum-192 are not available
in macroscopic commercial quantities and hence their thermal
expansion coefficients are most likely unknown.

Why ever not? I assumed everyone had at least a semi-prep mass spec.
- Shankar

You must be thinking of a Calutron.

PS Please don't read my headers. They are all forged.