AGENT AND METHOD FOR INHIBITING CORROSION OF IRON-BASED METAL

To provide an agent and a method for inhibiting the corrosion of an iron-based metal which can inhibit the corrosion of iron-based metal piping or facility in contact with a water system with an electric conductivity of lower than 20 mS/m, has excellent handleability, and does not require a wide ins...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	MARUKAME KAZUO, YOKOTA HIRONORI, YOSHIDA MASAKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	To provide an agent and a method for inhibiting the corrosion of an iron-based metal which can inhibit the corrosion of iron-based metal piping or facility in contact with a water system with an electric conductivity of lower than 20 mS/m, has excellent handleability, and does not require a wide installation space.SOLUTION: A method for inhibiting the corrosion of an iron-based metal includes adding an organic acid with an acid dissociation constant pKa of 4 or less and a salt thereof to a water system with an electric conductivity of lower than 20 mS/m. An agent for inhibiting the corrosion of an iron-based metal includes an organic acid with an acid dissociation constant pKa of 4 or less and a salt thereof as an active ingredient.SELECTED DRAWING: None 【課題】電気伝導率が２０ｍＳ／ｍより低い水系と接触する鉄系金属配管や設備への腐食抑制効果を発揮し、取扱い性に優れ、広い設置スペースを必要としない腐食抑制剤及び腐食抑制方法を提供する。【解決手段】本発明に係る鉄系金属の腐食抑制方法は、電気伝導率が２０ｍＳ／ｍより低い水系に対し、酸解離定数ｐＫａが４以下の有機酸及びその塩を添加する。本発明に係る鉄系金属の腐食抑制剤は、酸解離定数ｐＫａが４以下の有機酸及びその塩を有効成分として含有する。【選択図】なし