Corrosion Inhibitors & Coatings for Pulp & Paper

Technical Grade Sodium Nitrite Description: High-Purity Free Flowing Corrosion Inhibitor At Quimiconsult we offer BASF® technical grade Free Flowing Sodium Nitrite, a yellowish-white crystalline solid powder with a minimum purity of 99.0 g NaNO₂ per 100 g. It is a hygroscopic compound that is very soluble in water, used mainly as a corrosion inhibitor; it also shows antimicrobial properties and helps reduce odors in treatment systems and disinfection solutions. Its distinguishing feature is its Free Flowing condition: the powder does not cake or stick together, which makes it easier to handle, weigh, dose and dissolve in industrial processes. This is a real practical advantage in a hygroscopic product, whose conventional versions tend to cake in storage and must be broken up before use. As a corrosion inhibitor, sodium nitrite acts as an anodic passivator: in contact with steel and iron surfaces in aqueous media it promotes the formation of a stable, protective oxide film that slows c…

PBTC — Industrial Grade Corrosion and Scale Inhibitor   At Quimiconsult we supply PBTC (2-phosphonobutane-1,2,4-tricarboxylic acid, CAS 37971-36-1), an industrial grade corrosion and scale inhibitor supplied as a colorless to pale yellow liquid with an active content of about 50%. Its molecular structure combines one phosphonic group with three carboxylic groups, giving it an exceptional ability to adsorb onto metal surfaces and onto suspended inorganic particles, so it acts simultaneously as a corrosion inhibitor, a scale inhibitor (antiscalant) and a dispersant in industrial water systems.   What sets PBTC apart from other phosphonic inhibitors is its high stability against chlorine and bleach, which makes it compatible with water treatment systems that use hypochlorite or chlorine dioxide as biocides. This property is critical in cooling towers and process water systems, where disinfection and scale control must run in parallel without chemical interference between the actives. PB…