Agent for dissolving insoluble iron(III) compounds in highly alkaline textile treatment liquors
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United States of America Patent
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May 22, 1984
Grant Date -
N/A
app pub date -
Mar 4, 1983
filing date -
Mar 19, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An agent, based on reducing agents and complexing agents, for dissolving insoluble iron(III) compounds in aqueous textile treatment baths which are at a pH of 10 or more, which agent has the following composition: (a) from 4 to 65% by weight of one or more water-soluble hydroxycarbonyl compound or of an N- or O-acetal thereof, as the reducing agent, (b) from 10 to 80% by weight of one or more complexing agent which complexes Fe.sup.++ ions at a pH of 10 or more and (c) water in an amount equal to 100% minus the amounts of (a) and (b).
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