HS Code for Saltpeter

Saltpeter, chemically known as potassium nitrate, is classified under HS code 2834.21. This classification falls within Chapter 28, which covers inorganic chemicals, precious metals, and rare-earth metals. Specifically, heading 2834 is designated for nitrites and nitrates. Because saltpeter is a nitrate of potassium, it is explicitly identified in the subheading 2834.21. The classification is determined by the chemical composition of the substance rather than its end-use, provided it is not prepared as a fertilizer in specific dosage forms. For customs purposes, the purity of the potassium nitrate is a secondary factor to its chemical identity under this heading, although extremely high purity levels for laboratory use still remain within this code. It is essential to distinguish between technical-grade saltpeter used in industrial processes and potassium nitrate intended for agricultural use, as the latter may occasionally fall under Chapter 31 if it meets specific criteria for fertilizers.

Products Included

• Technical grade potassium nitrate
• Food-grade potassium nitrate (E252)
• Niter or Nitre in its refined chemical form
• Potassium nitrate crystals for industrial glass manufacturing
• Saltpeter used in the production of pyrotechnics and explosives

Common Misclassification

Saltpeter is frequently misclassified under HS code 3105.40 or 3102.30. These codes refer to mineral or chemical fertilizers. While potassium nitrate is a common component in fertilizers, it only moves to Chapter 31 if it is specifically prepared as a fertilizer in tablets or similar forms, or in packages with a gross weight not exceeding 10 kg. Additionally, it may be confused with 2834.29, which is the residual category for "other" nitrates; however, since potassium nitrate has its own specific subheading (2834.21), the specific code must take precedence over the general one.

FAQ

What is the HS code for Saltpeter?

The primary HS code for Saltpeter (potassium nitrate) is 2834.21.

Are there export restrictions on Saltpeter?

Yes, because saltpeter is a key ingredient in gunpowder and explosives, many jurisdictions classify it as a dual-use precursor, requiring specific export licenses or permits regardless of the HS code.