Industrial Grade Sodium Nitrite NaNO2 for Metal Heat Treatment Salt and Corrosion Inhibitor Applications
Price:
Please contact customer service
MOQ:
10Tons
Delivery Time:
About six weeks
Brand:
SiChun HongJian
Product Description
Sodium Nitrite Industrial Grade
Chemical Formula: NaNO₂ - White to slightly yellow crystals, granules, or powder with strong oxidizing properties, decomposition under acidic conditions, and reactivity with amines.
Core Applications
Metalworking & Heat Treatment
- Molten Salt Bath Nitriding: Key component in nitrate molten salt baths for QPQ salt bath treatment and black oxide finishing
- Surface Enhancement: Forms dense magnetite (Fe₃O₄) or nitride layers to improve wear resistance, corrosion resistance, and fatigue strength
- Vapor Phase Corrosion Inhibitor: Protects metal products in enclosed spaces from atmospheric corrosion
Industrial Water Systems
- Closed-Circuit Cooling Water: Classic anodic inhibitor for central air conditioning and engine cooling systems
- Corrosion Prevention: Forms protective magnetite (γ-Fe₂O₃) film on carbon steel surfaces, preventing general and pitting corrosion
Food Processing (E250)
- Color Fixation: Reacts with myoglobin to form stable pink nitroso-myoglobin in meat products
- Preservation: Inhibits growth of pathogens including Clostridium botulinum
- Antioxidant: Delays fat oxidation to preserve flavor
Must be used with precise dosage and commonly combined with ascorbic acid to prevent nitrosamine formation
Chemical & Pharmaceutical Synthesis
- Industrial Intermediates: Manufacturing of azo dyes, pigments, and pesticides
- Pharmaceutical Raw Material: Production of vasodilators and other medications
- Medical Application: Component in cyanide poisoning emergency treatment
Safety Warning:
This product is toxic and available in Industrial Grade and strictly regulated Food Grade. Supplied only to qualified industrial enterprises, water treatment companies, and compliant food processors with proper documentation. Requires professional training, protective measures, and strict adherence to safety protocols.
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Company
Sichuan Hongjian Xinyi Technology Co., Ltd.
Location
604, 6th Floor, Unit 2, Building 1, No. 9 Vanke Road, Chenghua District, Chengdu
Contact Person
Leo Yang