102.
    发明专利
    未知

    公开(公告)号:BRPI0414711A

    公开(公告)日:2006-11-14

    申请号:BRPI0414711

    申请日:2004-09-24

    Applicant: BASF AG

    Abstract: Process for pickling metallic surfaces by treating the metallic surface with a composition which comprises water, at least one acid, an alkyne alkoxylate and optionally further additives. In a preferred embodiment, the alkyne alkoxylate is used together with a complexing agent.

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