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Methods and composition for cleaning and passivating fuel cell systems

  • US 20050245411A1
  • Filed: 03/24/2005
  • Published: 11/03/2005
  • Est. Priority Date: 05/03/2004
  • Status: Active Grant
First Claim
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1. A cleaner-passivator composition for treatment of a fuel cell coolant system, comprising:

  • a complexing agent;

    a surfactant;

    a corrosion inhibitor; and

    a solvent;

    wherein the cleaner-passivator composition comprises no added non-biodegradable aminocarboxylates.

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