Abstract
IN NATURE of November 1, p. 529, reference was made to luminous strontium sulphide and its possible use for A.R.P. purposes. Dr. S. Rothschild points out that although this substance has a long afterglow when fresh, owing to its great sensitivity to moisture it soon deteriorates, even when protected with a special coating. It is only stable when kept airtight between glass plates and to a certain extent when embedded in plastics. Luminous calcium sulphide is less sensitive to moisture but also less bright. Luminous zinc sulphide, however, is stable even in damp rooms and is now obtainable with an afterglow sufficient for A.R.P. purposes.
Article PDF
Rights and permissions
About this article
Cite this article
Luminous Paint. Nature 149, 106 (1942). https://doi.org/10.1038/149106d0
Issue Date:
DOI: https://doi.org/10.1038/149106d0