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U.S. Department of Energy
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Silicate stabilization studies in propylene glycol

Conference ·
OSTI ID:362093
 [1]
  1. ARCO Chemical Co., Newtown Square, PA (United States)

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.

OSTI ID:
362093
Report Number(s):
CONF-9711247--
Country of Publication:
United States
Language:
English