Review of Organic Acids as Inhibitors in Engine Coolants

960641

02/01/1996

Event
International Congress & Exposition
Authors Abstract
Content
Presented is a literature and patent review of organic acids as corrosion inhibitors for use in engine coolants. The technology is directed towards use of acid combinations or acids with conventional inhibitors because no individual acid can provide protection to the range of metals used in cooling systems. Some examples are: aliphatic monoacids with diacids, azelaic acid with aromatic acids, molybdate with two or more aliphatic acids, and sebacic acid with benzotriazole. Claimed advantages are non-depletion (‘long-life’ coolants), non-silicate (gelation and pump seal wear concerns) and non-nitrite (nitrosamine formation), and compatibility with ethylene glycol and propylene glycol.
Meta TagsDetails
DOI
https://doi.org/10.4271/960641
Pages
13
Citation
Weir, T., and de Ven, P., "Review of Organic Acids as Inhibitors in Engine Coolants," SAE Technical Paper 960641, 1996, https://doi.org/10.4271/960641.
Additional Details
Publisher
Published
Feb 1, 1996
Product Code
960641
Content Type
Technical Paper
Language
English