C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 5/20 (2006.01) C09K 5/10 (2006.01) H01M 8/04 (2006.01)
Patent
CA 2463152
Carboxylic acids or the salts thereof are suitable for use in cooling systems where low electrical conductivity is required. The compositions are of particular use in fuel cell stacks. The preferred salts are those of amines. The salts can be used with a liquid alcohol freezing point depressant such as monoethylene glycol. Thiazoles and/or triazoles may be included, as well as other corrosion inhibitors known in the art.
L'invention concerne l'utilisation d'acides carboxyliques ou de sels de ces derniers dans des systèmes de refroidissement dans lesquels une faible conductibilité électrique est requise. Ces compositions conviennent particulièrement aux blocs de piles à combustible. Les sels préférés sont les sels d'amines. Les sels peuvent être utilisés avec un additif antigel à l'alcool liquide, tel que le monoéthylène glycol. Des thiazoles et/ou des triazoles, ainsi que d'autres inhibiteurs de corrosion connus par les spécialistes du domaine, peuvent également être ajoutés.
Lievens Serge
Maes Jean-Pierre
Sim & Mcburney
Texaco Development Corporation
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