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A Simplified Method for Making Lubricating Oil Emulsions

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A method is described by which stock emulsions of paraffin oils used in spraying are made without heat and without the use of potash fish-oil so p. Freshly made bordeaux mixture or copperas-lime mixture, calcium caseinate, saponin and other substances were used as emulsifying agents in the place of soap. The oil, water and emulsifying agent were placed together in a container and pumped twice under fairly high pressure. The emulsions made in this way were used successfully on a large scale. They gave as good results against San Jose scale as the emulsions made with potash fish-oil soap, and were cheaper and easier to prepare. These emulsions did not break down in the presence of hard water or water contaminated with lime or lime-sulphur.

Document Type: Research Article

Publication date: December 1, 1923

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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