Process for inhibiting the formation of mineral deposits from a water using N-N-dialkylureidomethane diphosphonic acids
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United States of America Patent
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Jul 21, 1981
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N/A
app pub date -
Oct 1, 1980
filing date -
Jul 19, 1979
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Abstract
A process for inhibiting the formation of mineral deposits from a water using novel N,N'-dialkylureidomethane diphosphonic acids and their alkaline salts having the formula: ##STR1## wherein R.sub.1 and R.sub.2 represent separate alkyl groups having one to three carbon atoms or a ring-forming alkylene group having two or three carbon atoms and R is hydrogen or an alkali metal.
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