Solvent system

C - Chemistry – Metallurgy – 11 – D

Patent

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Details

C11D 7/50 (2006.01) C23G 5/028 (2006.01) C11D 7/24 (2006.01) C11D 7/28 (2006.01)

Patent

CA 2233652

This invention relates to a solvent system which is non-flammable and which is comprised of a hydrocarbon solvent having a flash point less than 38~C and a second solvent containing at least 90 wt.% n-propyl bromide, the second solvent being present in an amount sufficient to obtain no flash point for the solvent system when tested in accordance with ASTM D-93 and the second solvent being the sole halogenated solvent and flash point suppressor in the solvent system.

L'invention concerne un système de solvants non inflammable, constitué d'un solvant hydrocarboné ayant un point éclair inférieur à 38 ·C et d'un second solvant contenant au moins 90 % en poids de bromure de n-propyle. Le second solvant est présent en une quantité suffisante pour que le système de solvants n'ait pas de point éclair lorsqu'il est testé selon les normes ASTM D-93, et il est, dans le système, le seul solvant halogéné et le seul suppresseur du point éclair.

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