HS Code for Potassium nitrite

Potassium nitrite, identified by the chemical formula KNO2, is classified under the Harmonized System within Chapter 28, which encompasses inorganic chemicals, organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes. Specifically, it falls under Heading 2834, which is reserved for nitrites and nitrates. The subheading 2834.10 is the specific designation for nitrites. The classification is determined by the chemical composition of the substance as an inorganic salt. According to the General Rules for the Interpretation (GRI) of the Harmonized System, specifically GRI 1, the classification is governed by the terms of the headings and any relative section or chapter notes. Potassium nitrite is a separate chemically defined compound, which justifies its placement in Chapter 28 rather than Chapter 31 (fertilizers), unless it is specifically prepared as a fertilizer mixture. This classification is critical for regulatory compliance, as potassium nitrite is used in industrial applications such as heat transfer salts and as a food preservative (E249) to prevent botulism.

Products Included

• Technical grade potassium nitrite for industrial use
• Food grade potassium nitrite (E249) used as a preservative
• Reagent grade potassium nitrite for laboratory analysis
• Potassium nitrite solutions in water

Common Misclassification

Potassium nitrite is frequently confused with potassium nitrate, which is classified under HS code 2834.21. While both are salts of potassium and nitrogen-oxygen anions, the nitrite (KNO2) has a different oxidation state than the nitrate (KNO3). Another common error involves misclassifying it under Heading 3105 if it is intended for use as a fertilizer; however, pure potassium nitrite remains in 2834.10 unless mixed with other fertilizing substances. Additionally, it should not be confused with potassium nitrate in the form of a medicinal product, which might fall under Chapter 30.

FAQ

What is the HS code for potassium nitrite?

The standard HS code for potassium nitrite is 2834.10, which covers inorganic nitrites.

Is potassium nitrite classified differently if used in food?

No, the HS code 2834.10 applies to potassium nitrite regardless of its application, provided it is a separate chemically defined inorganic compound.