公开(公告)号：US09850453B2

公开(公告)日：2017-12-26

申请号：US14893859

申请日：2014-05-13

Applicant: BASF SE

Inventor： Markus Christian Biel ,  Thomas Greindl ,  Markus Hartmann ,  Wolfgang Staffel ,  Marta Reinoso Garcia

IPC: C11D3/20 ,  C11D3/33 ,  C11D3/34 ,  C11D7/32 ,  C11D7/26 ,  C11D7/34

CPC classification number: C11D3/33 ,  C11D3/2079 ,  C11D3/3409 ,  C11D7/264 ,  C11D7/265 ,  C11D7/3245 ,  C11D7/34

Abstract: Aqueous solution comprising (A) in the range of from 30 to 60% by weight of a complexing agent, selected from the alkali metal salts of methylglycine diacetic acid and the alkali metal salts of glutamic acid diacetic acid, (B) in the range of from 1 to 25% by weight of at least one salt of a sulfonic acid or of an organic acid, percentages referring to the total respective aqueous solution.