Abstract
IN the course of measurements of the light transmission of dispersions of fine alumina powder in aqueous media, it has been found in these Laboratories that the effective projected area per unit weight of the powder gives a fairly good straight line of negative slope when plotted against the fourth power of the wave-length of the incident light. The projected areas were calculated from the usual formula : where A is effective projected area ; I0 is intensity of incident light ; I is intensity of emergent light ; K is opacity factor of powder ; C is concentration of powder by weight per unit volume ; and t is path-length.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
J. Opt. Soc. Amer., 37, (6), 475 (1947).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
SCOTT, B. Photometric Measurement of Specific Surface. Nature 161, 358–359 (1948). https://doi.org/10.1038/161358b0
Issue Date:
DOI: https://doi.org/10.1038/161358b0
This article is cited by
-
Projected Area of Convex Bodies
Nature (1948)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.
