HS-4 · Heading
2809 — Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined
Chapter 28: Inorganic chemicals
Plain-language overview
Use HS-4 2809 when importing diphosphorus pentaoxide or phosphoric acid. For example, if you are bringing in a shipment of phosphoric acid for use in fertilizers, this is the code you need. It’s crucial to classify your goods correctly to avoid delays or penalties.
When deciding between HS-6 280910 and HS-6 280920, consider the specific chemical composition of your product. If your shipment consists solely of diphosphorus pentoxide, you should use 280910. However, if it includes phosphoric acid or polyphosphoric acids, opt for 280920 instead.
The distinction between these codes is important for regulatory compliance. For instance, HS-6 280910 is specifically for diphosphorus pentoxide, a compound used in various industrial applications, while HS-6 280920 covers phosphoric and polyphosphoric acids, which have broader uses in agriculture and food processing.
Keywords & topics
Short phrases that describe this HS-4 heading when you're searching or filtering schedules.
diphosphorus pentaoxide import · phosphoric acid classification · polyphosphoric acids HS code · 2809 customs code · inorganic chemicals import · phosphoric acid uses · diphosphorus pentoxide applications · chemical import regulations · HS-4 2809 details · phosphoric acid shipping
Examples
Drawn from the official tariff wording for this HS-4 heading. Always confirm against your published schedule and legal notes.
- Diphosphorus pentoxide for glass manufacturing.
- Phosphoric acid for fertilizer production.
- Polyphosphoric acids used in chemical synthesis.
- Phosphoric acid in food additives.
- Diphosphorus pentoxide for dehydrating agents.
- Polyphosphoric acids for flame retardants.
Common questions
How people often phrase their search when they're trying to classify goods like yours.
- What is the HS code for phosphoric acid?
- How to classify diphosphorus pentaoxide?
- Are there specific regulations for importing phosphoric acid?
- What are the uses of polyphosphoric acids?
- How to determine the correct HS-6 code?
- What products fall under HS-4 2809?
Related topics
Longer phrases that come up when you're comparing codes or talking to a broker.
- how to classify diphosphorus pentaoxide for import
- phosphoric acid and polyphosphoric acids uses
- differences between HS-6 280910 and 280920
- importing diphosphorus pentoxide regulations
- phosphoric acid shipping requirements
- what is included in HS-4 2809
- best practices for classifying inorganic chemicals
- how to avoid penalties when importing phosphoric acid
Questions & answers
For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.
- What is diphosphorus pentoxide used for?
- Diphosphorus pentoxide is commonly used in glass manufacturing and as a dehydrating agent.
- How do I know if my product is phosphoric acid or polyphosphoric acid?
- Phosphoric acid is typically a clear liquid, while polyphosphoric acids are more viscous and may contain multiple phosphate groups.
- What are the potential penalties for misclassifying these chemicals?
- Misclassification can lead to fines, shipment delays, and increased scrutiny from customs authorities.
- Can I use one code for both diphosphorus pentoxide and phosphoric acid?
- No, you must use **HS-6 280910** for diphosphorus pentoxide and **HS-6 280920** for phosphoric and polyphosphoric acids.
- Are there special import permits required for these chemicals?
- Yes, certain chemicals may require special permits or compliance with safety regulations depending on your country.
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