The Preparation of Some Phosphorus Compounds and Their Comparison as Load Carrying Additives by the Four-Ball Machine
- 1 January 1976
- journal article
- research article
- Published by Taylor & Francis in A S L E Transactions
- Vol. 19 (4) , 319-328
- https://doi.org/10.1080/05698197608982809
Abstract
In this work, a variety of phosphonate esters, N-alkyl ammonium alkyl hydrogen phosphites, and a few phosphinates have been prepared. The compounds prepared were tested as extreme pressure additives at equimolar concentration in mineral oil by the Four-Ball Machine. The ammonium alkyl hydrogen phosphites showed unusual effectiveness in raising the initial seizure load. A few of the compounds prepared were also tested for antiwear activity.Keywords
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