Classification
Product TypeIngredient
Product FormSolid (granules/powder)
Industry PositionFood additive (preservative/colour fixative) and multi-use industrial chemical
Market
Sodium nitrite (INS 250; commonly labeled as E 250) is a globally traded inorganic chemical used as a food additive primarily for antimicrobial preservation and colour fixation in cured foods, with additional industrial uses that can influence bulk trade dynamics. In UN Comtrade reporting for HS 283410 (Nitrites)—a category that includes sodium nitrite and related nitrite salts—recent global exports are concentrated in a small number of manufacturing hubs, notably China, India, and the United States. Major import markets in the same HS category include the United States and the Netherlands (often functioning as a distribution gateway), alongside a range of industrial-use importers. Market access is strongly shaped by additive permissions and maximum-use provisions in Codex GSFA and national regulations, and by ongoing scientific scrutiny around nitrite exposure and nitrosamine formation.
Major Producing Countries- 중국Top exporter in HS 283410 (Nitrites) in 2024 (UN Comtrade via WITS), indicating significant industrial production capacity for nitrites used in food and non-food applications.
- 인도Top-tier exporter in HS 283410 (Nitrites) in 2024 (UN Comtrade via WITS), suggesting large-scale manufacture for domestic and export markets.
- 미국Major exporter in HS 283410 (Nitrites) in 2024 (UN Comtrade via WITS); also a large regulated end-market for food additive uses.
- 사우디아라비아Significant exporter in HS 283410 (Nitrites) in 2024 (UN Comtrade via WITS), reflecting regional production and industrial supply roles.
- 남아프리카Notable exporter in HS 283410 (Nitrites) in 2024 (UN Comtrade via WITS).
Major Exporting Countries- 중국Leading exporter in HS 283410 (Nitrites) in 2024 (UN Comtrade via WITS).
- 인도Leading exporter in HS 283410 (Nitrites) in 2024 (UN Comtrade via WITS).
- 미국Major exporter in HS 283410 (Nitrites) in 2024 (UN Comtrade via WITS).
- 사우디아라비아Major exporter in HS 283410 (Nitrites) in 2024 (UN Comtrade via WITS).
- 남아프리카Notable exporter in HS 283410 (Nitrites) in 2024 (UN Comtrade via WITS).
Major Importing Countries- 잠비아Top reported importer in HS 283410 (Nitrites) in 2024 (UN Comtrade via WITS); this HS line includes industrial uses beyond food additives.
- 미국Major importer in HS 283410 (Nitrites) in 2024 (UN Comtrade via WITS) and a heavily regulated market for sodium nitrite food additive uses.
- 네덜란드Major importer in HS 283410 (Nitrites) in 2024 (UN Comtrade via WITS); often functions as an EU logistics and redistribution hub.
- 알제리Major importer in HS 283410 (Nitrites) in 2024 (UN Comtrade via WITS), likely reflecting industrial demand within the HS category.
- 캐나다Major importer in HS 283410 (Nitrites) in 2024 (UN Comtrade via WITS).
- 일본Notable importer in HS 283410 (Nitrites) in 2024 (UN Comtrade via WITS).
- 대한민국Notable importer in HS 283410 (Nitrites) in 2024 (UN Comtrade via WITS).
Risks
Regulatory And Food Safety HighSodium nitrite is under sustained global regulatory scrutiny because nitrite exposure can cause methaemoglobinemia and because nitrite can contribute to N-nitroso compound formation in certain conditions and food matrices; this creates a high-stakes compliance risk for international trade in both the additive and nitrite-containing foods. Scientific re-evaluations and maximum-use provisions (Codex GSFA and national rules) can change permitted uses, allowable levels, and monitoring expectations, with rapid downstream impacts on demand and on acceptance testing in importing markets.Maintain compliance to Codex GSFA and importing-country rules; implement robust QA/QC to verify identity/purity and impurities, validate use-level controls in finished foods, and maintain documentation supporting regulatory conformity.
Hazardous Materials Handling MediumSodium nitrite is a strong oxidant that enhances combustion and can react dangerously with acids, reducing agents, and other incompatible materials; it is assigned UN transport classifications indicating oxidizer and toxicity hazards. Poor segregation, moisture ingress, or contamination can elevate incident risk during storage and transport, disrupting supply and raising insurance and compliance costs.Use hazardous-goods-qualified logistics; store dry and well closed; segregate from combustibles, reducing agents, and acids; control dust and train handlers per chemical safety card guidance.
Specification Compliance MediumFood-use trade depends on meeting recognized identity/purity specifications (e.g., JECFA assay and impurity limits). Off-spec material (assay, moisture, heavy metals) can cause border rejections, recalls, or downstream non-compliance when used in food processing.Purchase to JECFA/Codex-aligned specifications; require certificates of analysis; conduct inbound verification testing focused on assay, moisture/loss on drying, and relevant heavy metals.
Supply Concentration MediumBulk global trade in HS 283410 (Nitrites) is concentrated among a small set of exporting countries (notably China, India, and the United States in recent UN Comtrade/WITS reporting). Disruptions affecting these origins—energy price shocks, plant outages, trade restrictions, or hazardous-goods shipping constraints—can tighten availability and raise costs for food additive users that rely on imported supply.Qualify multiple suppliers across different exporting regions; maintain safety stock where permitted; monitor HS 283410 trade signals and freight constraints affecting oxidizer cargo.
Sustainability- Risk of aquatic toxicity and environmental harm if released; spillage guidance emphasizes preventing entry into the environment.
Labor & Social- Worker safety risk from inhalation/ingestion exposure (methemoglobinemia hazard) and from oxidizing/reactivity hazards; requires PPE, dust control, segregation from incompatible materials, and hazardous goods compliance.
FAQ
What is sodium nitrite used for in foods?In food use, sodium nitrite is primarily used as an antimicrobial preservative and as a colour fixative/colour retention agent in certain cured products, under conditions and maximum levels set by Codex GSFA and national regulations. In the United States, for example, 21 CFR § 172.175 describes permitted uses as a preservative and colour fixative in specified smoked/cured fish products and in home meat-curing preparations with limits in the finished food.
What is the Codex INS number for sodium nitrite and why is it important for trade?Sodium nitrite’s Codex International Numbering System (INS) number is 250. INS numbers are used in Codex GSFA to list where an additive is permitted and under what conditions, which many countries reference when setting or aligning their own food additive rules.
What purity expectations are typical for food additive grade sodium nitrite?JECFA’s food additive specification monograph for sodium nitrite includes an assay requirement of not less than 97.0% on the dried basis and sets impurity-related limits such as loss on drying not more than 0.25% and lead not more than 2 mg/kg. Buyers commonly reference these kinds of identity/purity specifications for food-use procurement and compliance testing.
Why is sodium nitrite considered a higher-risk additive from a regulatory and safety standpoint?Scientific assessments note key hazards including methaemoglobinemia from nitrite exposure and ongoing evaluation of nitrosamine formation and related health considerations. These issues drive strict maximum-use limits and monitoring expectations in many jurisdictions and can lead to changing requirements that affect market access and labeling.