What are colloidal precious metals?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
HS-4 · Heading
2843 — Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals
Chapter 28: Inorganic chemicals
Plain-language overview
Use HS-4 2843 when importing colloidal precious metals or compounds of precious metals like silver and gold. For example, if you're shipping a silver nitrate solution used in photography, this heading applies.
When deciding between the HS-6 lines, note that 284310 covers colloidal precious metals, while 284321 specifically includes silver nitrates. If your product is a colloidal silver solution without nitrates, you would use 284310 instead.
If your shipment contains gold compounds, you should refer to 284330. However, if your product is an amalgam of precious metals or other unspecified compounds, 284390 would be the correct choice. Always ensure the specific chemical composition aligns with the chosen subheading.
Keywords & topics
Useful terms traders and brokers use for this HS-4 heading.
colloidal precious metals · silver compounds · gold compounds · silver nitrate · amalgams of precious metals · inorganic compounds of precious metals · organic compounds of precious metals · chemical classification · import regulations · precious metal shipments
Examples
Drawn from the official tariff wording for this HS-4 heading. Always confirm against your published schedule and legal notes.
- Colloidal silver solutions for medical applications
- Silver nitrate used in photographic processes
- Gold chloride for chemical synthesis
- Amalgams containing precious metals for dental use
- Silver compounds for electronic applications
- Colloidal gold used in laboratory research
Common questions
Frequent classification questions with short practical guidance.
How to classify silver nitrate for import?
Write down material, use, and product form first, then compare nearby lines before you lock the code.
What is the difference between silver compounds?
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Which HS code for gold compounds?
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How to identify amalgams of precious metals?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
What are the import duties for HS-4 2843?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Related topics
Common real-world topics that come up during code comparison.
how to classify colloidal precious metals
Use this topic to narrow your shortlist, then validate the final code against legal wording.
importing silver nitrate solutions
Check the exact product specs and destination-country tariff notes before finalizing the code.
differences between silver compounds in HS codes
Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.
best practices for shipping gold compounds
Use this topic to narrow your shortlist, then validate the final code against legal wording.
understanding amalgams of precious metals
Use this topic to narrow your shortlist, then validate the final code against legal wording.
regulations for importing precious metal compounds
Check the exact product specs and destination-country tariff notes before finalizing the code.
choosing the right HS code for precious metals
Use this topic to narrow your shortlist, then validate the final code against legal wording.
guidelines for shipping inorganic compounds of precious metals
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Questions & answers
For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.
- What types of products fall under HS-4 2843?
- HS-4 2843 includes colloidal precious metals, silver and gold compounds, and amalgams of precious metals.
- How do I determine the correct HS-6 code for my product?
- Identify the specific chemical composition of your product. For example, use **284321** for silver nitrates and **284330** for gold compounds.
- Are there any special import regulations for these products?
- Yes, check national regulations regarding the import of precious metals and their compounds, as they may vary by country.
- Can I use HS-4 2843 for organic compounds of precious metals?
- Yes, HS-4 2843 covers both inorganic and organic compounds of precious metals, as long as they are specified under the correct HS-6 code.
- What should I do if my product doesn't fit any HS-6 subheading?
- If your product is not clearly defined, consider using **284390** for unspecified inorganic or organic compounds of precious metals.
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Heading-browse mode uses HS-6 284300 (first line of this block).