The fact that solid sodium reacts with the moisture in the air to produce a faint glow has been known for years. The color of the light was said to be greenish and its intensity extremely low; however, no measurements had been made. In this article, a method is described for determining its intensity by means of a photoelectric cell. The determination of the spectrum of the light as obtained both by filters and spectrographically is described. The intensity was found to vary from 3.57 to 10.5 x 10-7 lumens per square inch of metal surface while the spectrum was found to consist of a band between 5000 Ao and 5300 Ao with a maximum at about 5100 Ao.
Proceedings of the Iowa Academy of Science
© Copyright 1931 by the Iowa Academy of Science, Inc.
Bowie, R. M.
"The Color and Intensity of the Chemiluminescence of Solid Sodium,"
Proceedings of the Iowa Academy of Science, 38(1), 219-219.
Available at: https://scholarworks.uni.edu/pias/vol38/iss1/69