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1·The invention comprises a main agent and an auxiliary component; the main agent component is aluminum potassium sulfate or aluminium ammonium sulfate.

本发明包括主剂和辅剂成份，主剂成份为硫酸铝钾或硫酸铝铵。

2·Traces of sulfate ions in etching solution for aluminum foil have been determined by turbidimetry in presence of cation surface activator-hexadecyl trimethyl ammonium bromide (CTMAB).

在阳离子表面活性剂——十六烷基三甲基溴化铵（CTMAB）的存在下，用比浊法对铝箔蚀腐液中微量硫酸根离子进行测定。