Browse Publications Technical Papers 960641
1996-02-01

Review of Organic Acids as Inhibitors in Engine Coolants 960641

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.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Comparison of Conventional and Organic Acid Technology (OAT) Coolants in Heavy Duty Diesel Engine Service

1999-01-0130

View Details

TECHNICAL PAPER

The Role of Carboxylate-Based Coolants in Cast Iron Corrosion Protection

2001-01-1184

View Details

TECHNICAL PAPER

Monoacid/Diacid Combination as Corrosion Inhibitors in Antifreeze Formulations

900804

View Details

X