SYMPOSIA PAPER Published: 01 January 1999
STP38255S

Silicate Stabilization Studies in Propylene Glycol

Source

In most North American and many European coolant formulations, the corrosion inhibition of heat-rejecting aluminum surfaces is provided by alkali metal silicates. But, their tendency towards polymerization, leading to gelation and/or precipitation, can reduce the effectiveness of a coolant. This paper presents the results of experiments which illustrate formulation-dependent behavior of inorganic silicate in propylene glycol compositions. Specific examples of the effects of glycol matrix, stabilizer type, and hard water on silicate stabilization are provided.

Author Information

Schwartz, SA
ARCO Chemical Company, Newtown Square, PA
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Details
Developed by Committee: D15
Pages: 327–351
DOI: 10.1520/STP38255S
ISBN-EB: 978-0-8031-5566-4
ISBN-13: 978-0-8031-2610-7