Basic Copper Arsenate—A New Insecticide: II. Insecticide and Phytotoxity Studies*
- 1 February 1939
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 32 (1) , 144-146
- https://doi.org/10.1093/jee/32.1.144
Abstract
The preceding paper (Witman, Waters and Almy) described the chemical and physical properties of basic copper arsenate, Cu(CuOHASO4). This new insecticide was first made repeatedly in the laboratory by several methods until the conditions were determined for preparing a material with the most desirable physical and chemical properties from the standpoint of insecticidal and plant safety factors. Then several uniform 100-pound lots were made under controlled conditions in the chemical engineering laboratory. The materials used in the insecticide tests were lots of basic copper arsenate containing 44.8 per cent copper and 40.6 per cent As2O5, to which was added 2 per cent of zinc hydrate. This material had a particle size of 1 to 3 microns and a water-soluble As2O5 value of 0.15 per cent, when in equilibrium with CO2 of the air.This publication has 0 references indexed in Scilit: