What is HS code 2850 used for?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
HS-4 · Heading
2850 — Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading no. 2849
Chapter 28: Inorganic chemicals
Plain-language overview
Use HS-4 2850 when importing hydrides, nitrides, azides, silicides, and borides. For example, if you're shipping a container of lithium hydride for use in battery production, this code applies. Understanding the specific chemical composition and intended use of your products is crucial for proper classification.
The line HS-6 285000 encompasses all types of hydrides, nitrides, azides, silicides, and borides. If your product is a silicide used in semiconductor manufacturing, it will fall under this classification. Ensure that your product does not contain carbides, as those are classified under heading 2849.
When distinguishing between products, consider the chemical properties. For instance, while both nitrides and borides are covered under this heading, their applications differ significantly. Nitrides may be used in high-temperature applications, while borides often serve as hardening agents in materials.
If you encounter a product that may contain carbides, double-check its composition. Products that are strictly hydrides, nitrides, azides, silicides, or borides should be classified under HS-6 285000. This ensures compliance with customs regulations and avoids potential delays.
Keywords & topics
Useful terms traders and brokers use for this HS-4 heading.
hydrides · nitrides · azides · silicides · borides · chemical classification · import codes · battery materials · semiconductor manufacturing · automotive applications
Examples
Drawn from the official tariff wording for this HS-4 heading. Always confirm against your published schedule and legal notes.
- Lithium hydride for battery production
- Gallium nitride for LED manufacturing
- Sodium azide used in automotive airbag systems
- Silicon boride as a hardening agent in ceramics
- Boron nitride for high-temperature applications
- Aluminum silicide in semiconductor devices
Common questions
Frequent classification questions with short practical guidance.
How to classify hydrides and nitrides for import?
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Are azides covered under HS-4 2850?
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What are the applications of silicides?
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How to determine if a product is a boride?
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What is the difference between nitrides and borides?
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Related topics
Common real-world topics that come up during code comparison.
importing lithium hydride under HS-4 2850
Check the exact product specs and destination-country tariff notes before finalizing the code.
classification of nitrides for customs
Check the exact product specs and destination-country tariff notes before finalizing the code.
using azides in automotive safety systems
Use this topic to narrow your shortlist, then validate the final code against legal wording.
silicides in semiconductor applications
Use this topic to narrow your shortlist, then validate the final code against legal wording.
borides as hardening agents in materials
Use this topic to narrow your shortlist, then validate the final code against legal wording.
how to classify inorganic chemicals for import
Check the exact product specs and destination-country tariff notes before finalizing the code.
understanding HS-4 codes for hydrides
Use this topic to narrow your shortlist, then validate the final code against legal wording.
distinguishing between carbides and borides
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 products fall under HS-4 2850?
- HS-4 2850 includes hydrides, nitrides, azides, silicides, and borides, excluding carbides.
- How do I classify a product that contains both nitrides and carbides?
- If the product contains carbides, classify it under heading 2849. Otherwise, use HS-6 285000.
- Are there specific regulations for importing azides?
- Yes, azides are subject to specific safety regulations due to their reactive nature. Ensure compliance with all relevant guidelines.
- What is the difference between silicides and borides?
- Silicides are compounds of silicon with metals, often used in electronics, while borides are compounds of boron, typically used for hardening materials.
- Can I use HS-4 2850 for all types of hydrides?
- Yes, as long as they are not classified as carbides, all hydrides can be classified under HS-6 285000.
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