Special glass is required, you probably should read these many references on laboratory scale preparation of sodium using electrolytic vacuum processes before proceeding, if you want to remain well:
Ulmann's Encyklopadae der Technischen Chemie; 4. Auflage, R. J. Bauer, 16, 261 (1978); 9, 64 (1975); M. Bick, 20, 295 (1981); A. Krettler, 13 441 (1977); W. Kuntz and P. Klentz, 17, 146 (1979)
and
W.Y. Shiu et al, J. Vac. Sci. Tech. 11(6), 1131 (1974)
Chloride salts have been used industrially, but only the nitrates have been used successfully in the laboratory. The Mad Science thread, which should have been posted by the originator of this thread ;)
http://www.sciencemadness.org/talk/viewthread.php?tid=2105 (http://www.sciencemadness.org/talk/viewthread.php?tid=2105)
:)
Maybe this could help you?
http://www.plans-kits.com/ (http://www.plans-kits.com/)
It's doubtful that enough sodium could be isolated to do a nano, let alone any more; using this method ;) This drawing from John Strong's Procedures in Experimental Physics should bee helpful, though it's open to question whether suitable bulbs are presently available ;D
(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000514313-sodium.jpg)
More details can bee found in pages 531-39 from Chapter 13 of the book by Strong:
(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_imgs/djvu.gif)
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