HS-4 · Heading
2842 — Salts of inorganic acids or peroxoacids, n.e.c. including aluminosilicates whether or not chemically defined, but excluding azides
Chapter 28: Inorganic chemicals
Plain-language overview
Use HS-4 2842 when importing salts of inorganic acids or peroxoacids, such as double silicates or aluminosilicates. For example, if you're bringing in a shipment of sodium aluminosilicate used in food processing, this heading applies.
When deciding between HS-6 284210 and HS-6 284290, consider the product's composition. If your product is a double or complex silicate, like a specific aluminosilicate compound, use 284210. If it’s a simpler salt of an inorganic acid without complex silicates, choose 284290.
Be aware that both subheadings exclude azides. If your product contains azides, it will not fall under this heading and may require a different classification. Always check the chemical makeup carefully to ensure proper coding.
Keywords & topics
Short phrases that describe this HS-4 heading when you're searching or filtering schedules.
salts of inorganic acids · aluminosilicates · double silicates · complex silicates · HS-4 2842 · HS-6 284210 · HS-6 284290 · import inorganic salts · chemical classification · peroxoacids
Examples
Drawn from the official tariff wording for this HS-4 heading. Always confirm against your published schedule and legal notes.
- Sodium aluminosilicate used in food additives
- Potassium silicate for agricultural applications
- Calcium sulfate as a desiccant
- Magnesium peroxoacetate for industrial cleaning
- Aluminum phosphate in ceramics
- Zinc silicate for paint formulations
Common questions
How people often phrase their search when they're trying to classify goods like yours.
- What are the differences between HS-6 284210 and 284290?
- How do I classify aluminosilicates for import?
- Are azides included in HS-4 2842?
- What products fall under HS-4 2842?
- How to determine the correct HS code for inorganic salts?
- What is the process for importing salts of inorganic acids?
Related topics
Longer phrases that come up when you're comparing codes or talking to a broker.
- how to classify salts of inorganic acids for import
- differences between double and complex silicates in HS codes
- importing aluminosilicates under HS-4 2842
- exclusions for azides in HS-4 2842
- examples of products under HS-6 284210
- guidelines for importing peroxoacids
- understanding HS-4 2842 for trade compliance
- navigating HS codes for inorganic chemicals
Questions & answers
For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.
- What types of products are classified under HS-4 2842?
- HS-4 2842 covers salts of inorganic acids or peroxoacids, including aluminosilicates and double silicates.
- How do I know if my product is a double silicate?
- If your product contains both silicate and metal ions in a complex structure, it is likely a double silicate.
- Are there any specific import restrictions for HS-4 2842?
- Ensure your product does not contain azides, as they are excluded from this heading.
- What documentation is needed for importing under HS-4 2842?
- You will need chemical composition documentation and any relevant safety data sheets.
- Can I use HS-4 2842 for all inorganic salts?
- No, only for salts of inorganic acids or peroxoacids, specifically those that fit the criteria for this heading.
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Heading-browse mode uses HS-6 284200 (first line of this block).
HS-6 subheadings (2)
- 284210Salts of inorganic acids or peroxoacids, double or complex silicates, including aluminosilicates, whether or not chemically defined, excluding azides
- 284290Salts; of inorganic acids or peroxoacids, other than double or complex silicates, including aluminosilicates, whether or not chemically, excluding azides