An Apparatus for Evaluating the Dispersibility of Fine Powders.
Abstract
An apparatus was constructed for evaluating the dispersibility of fine powders. It consisted of a 27-cu ft chamber into which 0.2-gm portions of powder are aerosolized with a specially designed powder-dispersing gun. The decay of the resulting aerosol cloud was assayed by light-scattering measurements at 90 deg. Saccharin and polystyrene were used to evaluate the apparatus. Saccharin was selected because it is a crystalline, organic, nonhygroscopic material, and polystyrene was chosen because of its spherical shape and uniform particle size. The addition of Cab-o-sil (5% by weight) to saccharin improved dispersibility under all experimental conditions. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1964
- Accession Number
- AD0846927
Entities
People
- H. S. Sneiderman
- J. K. Pieroni
- J. V. Pistritto
- R. V. Cogswell
Organizations
- Edgewood Chemical Biological Center