Oxygen scavenger and boiler water treatment chemical

摘要

An oxygen scavenger characterized in that the effective component thereof consists of a heterocyclic compound with N-N bond in a ring thereof. An oxygen scavenger characterized in that the effective component thereof consists of a heterocyclic compound with N-substituted amino group. An oxygen scavenger characterized in that the effective component thereof consists of a heterocyclic compound represented by the following formula: (wherein a, b are integers between 0 and 5 to satisfy a relation "2≤a + b≤5"), An oxygen scavenger characterized in that the effective component thereof consists of azodicarbonamide. An oxygen scavenger characterized by including a heterocyclic compound with N-substituted amino group, or the salt thereof, and a hydroxybenzene derivative. Those may contain further neutral amine, alkalic agent and/or water soluble polymer.