METHOD FOR PURIFYING ORGANOPHOSPHONIC ACID

PROBLEM TO BE SOLVED: To provide an organophosphonic acid of low metallic impurity contents. SOLUTION: The objective method for purifying an organophosphonic acid is characterized by comprising contacting the organophosphonic acid having in the molecule at least one phosphonic acid group or salt the...

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Bibliographische Detailangaben
Hauptverfasser:	KUWABARA HIDEKO, WATANABE HIROYA, TANAKA KAZUNARI, NITO SHOICHI
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMISTRY METALLURGY ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an organophosphonic acid of low metallic impurity contents. SOLUTION: The objective method for purifying an organophosphonic acid is characterized by comprising contacting the organophosphonic acid having in the molecule at least one phosphonic acid group or salt thereof with a strongly acidic cation exchange resin.