Sodium metaborate

Sodium metaborate (CAS 7775-19-1), also referenced commercially as NaBO2, is an inorganic boron-containing salt used for pH regulation, corrosion inhibition, and biocidal activity.

Where is Sodium metaborate used?

• Water treatment: pH control and corrosion inhibition in recirculating systems
• Pipeline and cooling tower protection: reduces metal degradation
• Textile and leather processing: alkaline scouring and cleaning agent that removes grease and organic contaminants
• Agriculture: boron micronutrient source for boron-deficient crops
• Paper manufacturing: applied in pulping and bleaching stages
• It supports consistent process chemistry through its buffering capacity.

Good to know: Buyers should confirm anhydrous versus hydrated form when specifying. Boron content and solubility behavior differ between grades.