INDUSTRY COMPONENT

Sodium Nitrite Compound

Sodium nitrite compound is a chemical additive used in meat curing to prevent bacterial growth and preserve color.

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Component Specifications

Definition
Sodium nitrite (NaNO2) is an inorganic compound used as a curing agent in food processing, particularly in meat products. It functions as an antimicrobial agent against Clostridium botulinum and other pathogens, while also stabilizing the red color of cured meats through the formation of nitrosomyoglobin. In high-purity sodium nitrite curing salt systems, it is precisely dosed and mixed with sodium chloride to ensure consistent preservation and safety.
Working Principle
Sodium nitrite inhibits bacterial growth by disrupting microbial enzyme systems and cellular respiration. In meat curing, it reacts with myoglobin to form nitrosomyoglobin, which gives cured meats their characteristic pink color. It also acts as an antioxidant to prevent rancidity.
Materials
High-purity sodium nitrite (NaNO2), typically ≥99% purity, food-grade, with controlled impurities like heavy metals (lead, arsenic) below regulatory limits. Often blended with sodium chloride (NaCl) in curing salt formulations.
Technical Parameters
  • Purity ≥99%
  • Appearance White to slightly yellowish crystalline powder
  • Solubility Highly soluble in water
  • Heavy Metals <10 ppm
  • Moisture Content <0.5%
  • pH (1% solution) 7-9
Standards
ISO 22000, ISO 9001, DIN EN 12014-3

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Sodium Nitrite Compound.

sodium nitrite meat curing food preservative curing salt NaNO2 food additive antimicrobial agent nitrite compound high-purity curing Sodium Nitrite Compound Sodium Nitrite Compound in Food Manufacturing

Parent Products

This component is used in the following industrial products

High-Purity Sodium Nitrite Curing Salt

Industrial-grade sodium nitrite salt used for meat curing and preservation.

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Engineering Analysis

Risks & Mitigation
  • Overdose can lead to methemoglobinemia (reduced oxygen transport in blood)
  • Potential formation of nitrosamines (carcinogenic compounds) under high-heat conditions
  • Corrosive to metals in humid environments
  • Toxic if ingested in large quantities
FMEA Triads
Trigger: Inaccurate dosing in curing system
Failure: Insufficient nitrite leads to microbial spoilage or excessive nitrite causes health risks
Mitigation: Implement automated dosing controls with regular calibration and safety interlocks
Trigger: Moisture absorption during storage
Failure: Caking and inconsistent mixing in curing blend
Mitigation: Use sealed, moisture-proof containers and controlled storage conditions
Trigger: Contamination with non-food-grade materials
Failure: Product safety violation and regulatory non-compliance
Mitigation: Source from certified suppliers and conduct incoming material inspections

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Dosing accuracy within ±5% of target concentration; residual nitrite in finished products ≤200 ppm as per FDA/EFSA regulations
Test Method
Ion chromatography or spectrophotometric analysis (e.g., Griess assay) for nitrite quantification; microbial testing for Clostridium botulinum inhibition

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of sodium nitrite in food processing?

It prevents bacterial growth (especially botulism) and preserves the red color in cured meats.

Is sodium nitrite safe for consumption?

Yes, when used within regulated limits (typically 100-200 ppm in finished products), it is safe and approved by food safety authorities worldwide.

How is sodium nitrite applied in industrial curing?

It is precisely dosed and mixed with salt in automated curing systems to ensure uniform distribution and compliance with safety standards.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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