| 摘要 |
<p>The stability of ethylene diamine tetra-(methylene phosphate)-EDTMA-and diethylene triamine penta-(methylene phosphonate)-DTPMP-incorporated as peracid stabilizer in bleaching and cleaning compositions comprising a percompound and an organic activator for said percompound is improved if said phosphonate compound is present as a complex of a metal ion selected from the group consisting of calcium, magnesium, zinc and aluminium ions, the molar ratio of said metal ion to said phosphonate compound in the complex being at least 1:1. Compositions comprising a percompound bleach, an organic activator and said metal complex of EDTMP or of DTPMP are provided.</p> |
