HTS US: 2816.XX.XXXX
Description
This heading encompasses chemical compounds categorized as hydroxides and peroxides of magnesium, as well as oxides, hydroxides, and peroxides of the alkaline earth metals strontium and barium. These substances are inorganic chemicals widely used in various industrial and manufacturing processes, including the production of refractory materials, ceramics, and chemical reagents.
The classification under this heading includes:
- Hydroxide and peroxide of magnesium: Compounds consisting of magnesium combined with hydroxide (OH-) or peroxide (O2 2-) groups.
- Oxides, hydroxides, and peroxides of strontium or barium: Chemical compounds where strontium or barium are combined with oxygen in various forms such as oxides, hydroxides, or peroxides.
Code Hierarchy
- Section VI: Products of the Chemical or Allied Industries (Chapters 28-38)
- Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes
- Heading 2816: Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium
- US HTS Code (10-digit):
2816.XX.XXXX– Specific codes define the exact type of compound and metal involved.
Detailed Breakdown of Subheadings
The heading 2816 is subdivided into specific codes identifying the exact chemical compounds based on the metal and chemical form. Below is the detailed breakdown:
| HS/HTS Code | Description | Examples & Notes |
|---|---|---|
| 2816.10.00.00 | Hydroxide and peroxide of magnesium | Includes magnesium hydroxide (Mg(OH)2) and magnesium peroxide; commonly used as flame retardants, fillers, and in environmental applications. |
| 2816.40 | Oxides, hydroxides and peroxides, of strontium or barium: | General category for compounds of strontium and barium with oxygen. |
| 2816.40.10.00 | Of strontium | Includes strontium oxide (SrO), strontium hydroxide (Sr(OH)2), and strontium peroxide; used in pyrotechnics, ceramics, and electronics. |
| 2816.40.20.00 | Of barium | Includes barium oxide (BaO), barium hydroxide (Ba(OH)2), and barium peroxide; utilized in ceramics, glassmaking, and chemical manufacturing. |
What is NOT Classified Here?
To avoid misclassification, note these exclusions:
- Other magnesium compounds: Magnesium salts or organic magnesium compounds are classified under different headings.
- Compounds of other metals: Oxides, hydroxides, or peroxides of metals other than magnesium, strontium, or barium are classified elsewhere.
- Prepared chemical mixtures: Mixtures or preparations containing these compounds but combined with other substances may fall under other headings.
Notes
- Quality and Purity Standards: Import regulations often require documentation of chemical purity and compliance with safety standards.
- Usage: These compounds are significant in industries such as electronics, ceramics, environmental technology, and chemical manufacturing.
- Customs Duty: Duty rates depend on the specific 10-digit HTS code and country of import; users should verify current rates and possible trade agreements.
Declaration Example
Product: Shipment of magnesium hydroxide for industrial use.US HTS Code:
2816.10.00.00(Hydroxide and peroxide of magnesium)Unit of Quantity: Kilogram (kg)
General Duty Rate: Check current USHTS (Varies based on trade agreements and product use)
Additional Requirements: Material Safety Data Sheet (MSDS) and chemical composition certification may be required.
Related HTS Codes
- HTS 2815: Other inorganic acids and inorganic oxygen compounds of non-metals.
- HTS 2817: Zinc oxide and zinc peroxide.
- HTS 2825: Hydrides, nitrides, azides, silicides and borides of metals.
- HTS 2849: Carbides, whether or not chemically defined; commercial calcium carbide.











