# United States tariff lines under HS 2811.19

> The United States tariff splits HS 2811.19 (other inorganic acids: Other) into 4 national lines: 2811.19.10.00 (arsenic acid), 2811.19.30.00 (hydrobromic acid), 2811.19.61.10 (sulfamic acid) and 2811.19.61.90 (other). The general (MFN) duty differs by line: 2.3% on 2811.19.10.00, free on 2811.19.30.00, 4.2% on 2811.19.61.10 and 4.2% on 2811.19.61.90.

Source: https://border.bot/countries/united-states/hs-codes/281119
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 28](https://border.bot/countries/united-states/hs-codes/28) / [2811.19](https://border.bot/countries/united-states/hs-codes/281119)

## Key facts

- HS subheading: [2811.19](https://border.bot/hs-codes/281119)
- National lines: 4
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes

## United States lines under 2811.19

The United States tariff splits HS 2811.19 (other inorganic acids: Other) into 4 national lines: 2811.19.10.00 (arsenic acid), 2811.19.30.00 (hydrobromic acid), 2811.19.61.10 (sulfamic acid) and 2811.19.61.90 (other).

The general (MFN) duty differs by line: 2.3% on 2811.19.10.00, free on 2811.19.30.00, 4.2% on 2811.19.61.10 and 4.2% on 2811.19.61.90.

- [2811.19.10.00](https://border.bot/countries/united-states/hs-codes/2811191000) Other inorganic acids, Other, Arsenic acid. Duty (MFN): 2.3%
- [2811.19.30.00](https://border.bot/countries/united-states/hs-codes/2811193000) Other inorganic acids, Other, Hydrobromic acid. Duty (MFN): free
- [2811.19.61.10](https://border.bot/countries/united-states/hs-codes/2811196110) Other inorganic acids, Other, Other, Sulfamic acid. Duty (MFN): 4.2%
- [2811.19.61.90](https://border.bot/countries/united-states/hs-codes/2811196190) Other inorganic acids, Other, Other, Other. Duty (MFN): 4.2%

## In other countries

No other national tariff on border.bot has live lines under 2811.19 yet.

- [The Harmonized System text for 2811.19](https://border.bot/hs-codes/281119)

- Previous subheading: [2811.12](https://border.bot/countries/united-states/hs-codes/281112) Other inorganic acids and other inorganic oxygen compounds of nonmetals
- Next subheading: [2811.21](https://border.bot/countries/united-states/hs-codes/281121) Other inorganic acids and other inorganic oxygen compounds of nonmetals

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 2811.19?

The United States tariff splits HS 2811.19 (other inorganic acids: Other) into 4 national lines: 2811.19.10.00 (arsenic acid), 2811.19.30.00 (hydrobromic acid), 2811.19.61.10 (sulfamic acid) and 2811.19.61.90 (other).

### What is the duty on HS 2811.19 in the United States?

The general (MFN) duty differs by line: 2.3% on 2811.19.10.00, free on 2811.19.30.00, 4.2% on 2811.19.61.10 and 4.2% on 2811.19.61.90.

## Sources and updates

The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

This page was last updated on 9 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

Official source files:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/281119.json