The Particle Size of Commercial Insecticidal Sulfurs as Determined by Sedimentation Analysis
- 1 June 1938
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 31 (3) , 410-414
- https://doi.org/10.1093/jee/31.3.410
Abstract
The particle-size in 44 samples of commercial insecticidal sulfur was detd. by sedimentation analysis. A new method of dispersion, in which a wetting agent composed of a mixture of saponin and ammonium caseinate in ammoni-cal 50% alcohol was used, gave good results on a wide variety of samples. The flotation pastes and suspensions of colloidal sulfur contained the most fine material. A material made by a special process ranked next. Except for 2 coarsely ground crude samples, the ground sulfurs fell in about a medium fine class. The sublimed flowers were variable[long dash]either fine or coarse. The percentage through 325 mesh gave little indication of the amt. of very fine sulfur in a sample.This publication has 1 reference indexed in Scilit:
- The Relationship of Fineness of Sulfur Particles to Effectiveness Against the Citrus Thrips in Central CaliforniaJournal of Economic Entomology, 1934