Dishwasher detergent composition containing an anticorrosive agent
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United States of America Patent
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-
Oct 9, 2001
Grant Date -
N/A
app pub date -
Mar 17, 1999
filing date -
Jul 16, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A detergent composition containing alkali-metal silicate with an average molar ratio of SiO.sub.2 /M.sub.2 O of 1-4.2, preferably 2.5-4.2, wherein M is an alkali metal, the composition being non-corrosive to glass, crystal, porcelain and decorative prints thereon upon repeated washing. The composition being such that when disposed in a washing medium at a normal working concentration, a protonated silicic monomer Si(OH).sub.4 is produced in a concentration of at least 2.5.times.10.sup.-3 mol/liter of the washing medium.
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