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Customs code · HS subheading 2811 19

Final code reached

Other inorganic acids, excluding the specifically listed acids

This is a complete 8-digit customs code. Exports and Intrastat use it as it is. For an import into the EU, pick a 10-digit line below.

This code covers inorganic acids that are not hydrogen chloride, chlorosulfuric acid, sulfuric acid, fuming sulfuric acid, nitric acid, nitrating acids, phosphoric acid, polyphosphoric acids, boric acids, hydrogen fluoride, hydrogen bromide or hydrogen cyanide. The product must therefore be an inorganic acid outside these exclusions.

For example

  • arsenic acid
  • selenous acid
See the official tariff text

Official tariff text

Inorganic acids (excl. hydrogen chloride "hydrochloric acid", chlorosulphuric acid, sulphuric acid, oleum, nitric acid, sulphonitric acids, phosphoric acid, polyphosphoric acids, boric acids, hydrogen fluoride "hydrofluoric acid", hydrogen bromide "hydrobromic acid" and hydrogen cyanide "hydrocyanic acid")

You are seeing what applies when you export from the EU. Switch above if you import.

You are seeing what applies when you import into the EU. Switch above if you export.

Your answer for export

The full EU export code is 2811 19 80.

You do not pick a 10-digit EU import line for an export declaration or Intrastat. The destination classifies the goods under its own tariff.

8 digits, ready

Selling to Norway, Great Britain and the United States

What they charge on arrival.

Norway, Great Britain and the United States use their own tariff lines under the 6-digit HS code. The rates below are what their customs charge on goods arriving from the EU. Match the goods against each country's own wording before you rely on a rate.

Norway

Duty free

  • Their lines2 Norwegian lines

28.11.1902 Dinitrogen monoxide

Norwegian tariff data checked Sept. 13, 2026.

Great Britain

4.0%

  • Their lines4 British lines
  • EU originDuty free

2811 19 80 40 Arsenic acid (CAS RN 7778-39-4)

Northern Ireland follows other rules.

UK tariff data checked Sept. 13, 2026.

United States

From 2.3% to 10.0%

Estimated from published US measures

  • Their lines4 US lines
  • Entry dateSept. 17, 2026

2811.19.10.00 Other inorganic acids and other inorganic oxygen compounds of nonmetals, Other inorganic

The US importer of record files the entry.

US tariff data checked Sept. 16, 2026.

See the 2 Norwegian lines

Selling to Norway

Norway splits the 6-digit category its own way, so these are Norway's own lines under it, not this EU code. Check your product against their wording; what Norwegian customs charges is shown per line.

  • 28.11.1902

    Dinitrogen monoxide

    Ordinary duty
    Duty free

  • 28.11.1909

    Other

    Ordinary duty
    Duty free

Norwegian tariff data version 1.5/1.2, last checked Sept. 13, 2026.

Contains data from Norwegian Customs (data.toll.no), licensed under CC BY 4.0, adapted for display.

See the 4 British lines

Selling to Great Britain

What UK customs charges when goods like these arrive in Great Britain.

  • All 4 UK lines under this code

    They all have the same duty rates shown here.

    Ordinary duty
    4.0%
    Goods of EU origin
    Duty free You need documentation of EU preferential origin to use this rate.

These rates apply in Great Britain. Different rules may apply for goods entering Northern Ireland.

UK tariff data version v4.0.1599, last checked Sept. 13, 2026.

Contains public sector information licensed under the Open Government Licence v3.0.

Source: UK Department for Business and Trade (data.api.trade.gov.uk).

See the 4 US lines

Selling to the United States

What US customs charges when goods like these arrive from the EU. The US importer of record files the entry and pays the duty.

  • 2811.19.10.00

    Other inorganic acids and other inorganic oxygen compounds of nonmetals, Other inorganic acids, Other, Arsenic acid

    General rate
    2.3%
    From the EU
    2.3% Estimated from published US measures US headings applied: 9903.05.86 U.S. note 52(b) to subchapter III of chapter 99, 91 FR 47318: as provided in heading 9903.05.86, the duties imposed by headings 9903.05.20 through 9903.05.84 shall not apply to articles classifiable in the listed provisions

  • 2811.19.30.00

    Other inorganic acids and other inorganic oxygen compounds of nonmetals, Other inorganic acids, Other, Hydrobromic acid

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2811.19.61.10

    Other inorganic acids and other inorganic oxygen compounds of nonmetals, Other inorganic acids, Other, Sulfamic acid

    General rate
    4.2%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 2811.19.61.90

    Other inorganic acids and other inorganic oxygen compounds of nonmetals, Other inorganic acids, Other

    General rate
    4.2%
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

Worked out for an entry on Sept. 17, 2026.

US tariff schedule 2026HTSRev19, last checked Sept. 16, 2026.

Last change we recorded: Revision 19 (2026), Sept. 16, 2026.

Anti-dumping and countervailing duties, US import taxes and customs fees are not included.

The descriptions above are the US tariff texts, which the United States publishes in English only.

Source: the US International Trade Commission's Harmonized Tariff Schedule (hts.usitc.gov), public domain, and the measures published in the Federal Register.

This is a planning estimate from the US Harmonized Tariff Schedule (revision shown) and the published Federal Register measures as of the date shown, for a shipment of EU origin. It is not a customs entry, legal advice or a broker's opinion, and tariffs.help is not a US-licensed customs broker. The US importer of record or their broker confirms the classification, origin, value and the duty due before filing.

Before you use the code

Check the facts that sit outside the code

The code can be right while what you pay still changes, because of where the goods come from, when they arrive, or extra EU measures.

Classify your own product, free Look up the current rates and rules
  1. The product and its form Check that your product really matches this description, including what it is made of and the form it arrives in.
  2. Country of origin Trade agreements, sanctions and extra measures can change the treatment of the very same code.
  3. Current tariff measures Check today's rate, any restrictions or licences, and the quantity customs asks for, with Toldstyrelsen or TARIC.

On an EU import declaration

Pick the 10-digit line that matches the goods.

4 import lines

When these goods are imported into the EU, the declaration needs a 10-digit code. Under 2811 19 80 the EU tariff has 4 lines, each with its own wording.

You or your customs agent pick the line whose wording fits the goods; the last line, "Other", covers what none of the specific wordings describe.

Some lines depend on what the goods will be used for and need customs authorisation; matching the wording alone does not give a lower rate.

  1. Match the whole wording A line is its own wording plus the grouping text above it. Read both before you settle on one.
  2. Check the intended use On some lines the lower rate belongs to what the goods will be used for, not to the goods alone.
  3. Confirm the authorisation Where the lower rate carries conditions, customs asks for an authorisation before it can be used.

  • 2811 19 80 40

    Arsenic acid (CAS RN 7778-39-4)

    5.3%

    Duty suspension: 0% for ships, boats and drilling platforms

    Conditions apply, customs authorisation needed.

    This line in the EU tariff Rulings on this line

  • 2811 19 80 50

    Sulphamidic acid (CAS RN 5329-14-6) with a purity by weight of 95 % or more, whether or not with not more than 5 % addition of the anti-caking agent silicon dioxide (CAS RN 112926-00-8)

    5.3%

    Duty suspension: 0% for ships, boats and drilling platforms

    Conditions apply, customs authorisation needed.

    This line in the EU tariff Rulings on this line

  • 2811 19 80 60

    Phosphorous acid, in solid or liquid (aqueous) forms, also denominated phosphonic acid, usually falling under Chemical Abstracts Service ('CAS') numbers 13598-36-2 and 10294-56-1. The Customs and Statistics (‘CUS’) numbers usually corresponding to this product are 0021895-1 and 0043878-8.

    5.3%

    Duty suspension: 0% for ships, boats and drilling platforms

    Conditions apply, customs authorisation needed.

    This line in the EU tariff Rulings on this line

  • 2811 19 80 90

    Other

    5.3%

    Duty suspension: 0% for ships, boats and drilling platforms

    Conditions apply, customs authorisation needed.

    This line in the EU tariff Rulings on this line

A suspension is a lower rate the EU grants for specific products; whether your goods qualify depends on the line's wording and conditions.

Exports from the EU and Intrastat normally use the 8-digit code as it is.

EU tariff data of Sept. 13, 2026.

Rates, origin and documents

Read the signals first. Open only the ones you want to check.

Besides the ordinary duty, the EU records these kinds of measure against this code. They are listed as signals only: whether one applies to your goods can depend on where they come from, who produced them, the exact product and the documents you present. No amounts are worked out here.

Data of Sept. 1, 2026

Extra duty on goods from some countries

First

Trade-defence measures, such as anti-dumping duty, may apply to goods originating in:

  • China
  • any country except China
  • Türkiye

This is recorded on a more detailed code below this one, so it may not cover your goods. See the import lines under this code

Check this code in the official EU TARIC database

Lower duty for goods from some countries

Possible

Preferential rates exist for goods originating in:

  • Andorra
  • San Marino
  • Türkiye
  • European Union
  • Comoros (excluding Mayotte), Madagascar, Mauritius, Seychelles and dependencies and Zimbabwe
  • Botswana, Eswatini, Lesotho, Mozambique and Namibia
  • Western Sahara
  • European Union, Iceland, Liechtenstein and Norway
  • +46 origins

These rates apply to Economic Partnership Agreements; CARIFORUM except Haiti; GSP-EBA (Special arrangement for the least-developed countries - Everything But Arms); OCTs (Overseas Countries and Territories); GSP - General arrangements except India; GSP+ (incentive arrangement for sustainable development and good governance).

Whether you can use one depends on the origin rules for the goods and on the documentation you can show.

Check this code in the official EU TARIC database

A limited quantity at a lower rate

Check

A tariff quota is recorded for this code. This does not say whether any of the quota is still available. It covers goods originating in:

  • any country except Belarus and Russian Federation

This is recorded on a more detailed code below this one, so it may not cover your goods. See the import lines under this code

Check this code in the official EU TARIC database

Restrictions and paperwork

Important

Import restrictions are recorded for goods originating in:

  • any country
  • Ukraine
  • Belarus
  • Russian Federation
  • Japan

The EU records document conditions on this code. What customs may ask for depends on where the goods come from, exactly what the product is and the customs procedure.

Proof of origin 2 conditions

If you claim a lower rate for goods from a country the EU has a trade agreement with, customs asks for proof of origin, for example a EUR.1 certificate or an origin declaration.

Show the EU's own wording for these conditions
  • Invoice declaration or origin declaration made out by any exporter on invoice or any other commercial document
  • Movement certificate EUR.1

Sanctions and restricted regions 10 conditions

Some conditions come from EU sanctions rules. They matter when the goods are linked to a country or region the EU restricts trade with.

Show the EU's own wording for these conditions
  • Goods not originating from or destined to Crimea or Sevastopol (Articles 2 and 2b.1 of Council Regulation (EU) No 692/2014)
  • Goods not originating from or not destined for the non-government controlled areas of Ukraine in the oblasts of Donetsk, Kherson, Luhansk and Zaporizhzhia
  • Goods entered the territory of the customs union of the EU and presented to customs authorities prior to the entry into force or to applicability date of the present sanction, whichever is latest (see Article 8f of Regulation (EU) No 765/2006)
  • Import authorisation by virtue of article 1ra paragraph 10 of Council Regulation (EU) 765/2006
  • The prohibitions defined in article 1ra paragraph 1 of Council Regulation (EU) No 765/2006 do not apply (see exemptions in article 1ra paragraph 4)
  • The prohibitions defined in article 1ra paragraph 1 of Council Regulation (EU) No 765/2006 do not apply (see exemptions in article 1ra paragraph 3)
  • Goods entered the territory of the customs union of the EU and presented to customs authorities prior to the entry into force or to applicability date of the present sanction, whichever is latest (see Article 12e of Regulation (EU) No 833/2014)
  • Import authorisation by virtue of article 3i paragraph 3c of Council Regulation (EU) 833/2014
  • The prohibitions defined in article 3i.1 of Council Regulation (EU) No 833/2014 do not apply (see exemptions in article 3i.3aa)
  • Import authorisation by virtue of article 12b.2 of Council Regulation (EU) 833/2014

Product controls and permits 9 conditions

Depending on the exact product, customs may ask for a licence, a permit or a control certificate before the goods are released.

Show the EU's own wording for these conditions
  • Notification document as mentioned in Regulation (EU) 2024/1157 - Article 5 and Annex IA
  • Common Health Entry Document for Feed and Food of Non-Animal Origin (CHED-D) (as set out in Part 2, Section D of Annex II to Commission Implementing Regulation (EU) 2019/1715 (OJ L 261))
  • Exemption from Authorization (Title VII) Article 2 point 5 and 8 of Regulation (EC) No 1907/2006 (REACH)
  • Specific exemption from REACH authorisation (exempted (categories of) use listed in Annex XIV of Regulation (EC) No 1907/2006)
  • Generic exemption from REACH authorisation (Art. 56 of Regulation (EC) No 1907/2006)
  • REACH Authorisation, according to Title VII of Regulation (EC) No 1907/2006
  • Substance/mixture not subjected to the provisions of Regulation (EC) No 1907/2006 (Annex XVII)
  • Compliance with the REACH restrictions defined in Column 2 of Annex XVII of Regulation (EC) No 1907/2006
  • Exemption from REACH restrictions by virtue of Article 67(1) and 67(2) of Regulation (EC) No 1907/2006

Other conditions 11 conditions

These conditions match none of the groups above. Whether customs asks for one depends on the goods, where they come from and the customs procedure.

Show the EU's own wording for these conditions
  • Information document accompanying shipments of waste as mentioned in Regulation (EU) 2024/1157 – Article 18 and Annex VII
  • Product not subjected to the provisions of Regulation (EU) 2024/1157
  • Movement document as mentioned in Regulation (EU) 2024/1157 – Article 5 and Annex IB
  • Products which left Japan before 28 March 2011
  • Declaration for the import into the European Union of feed and food originating in or consigned from Japan (Commission Implementing Regulation (EU) No 322/2014)
  • The products are accompanied by a declaration issued before 1 November 2012 in accordance with the Implementing Regulation (EU) No 284/2012 and stating that the products have left Japan before 1 December 2012
  • The products left Japan before 30.10.2012 and comply with Implementing Regulation (EU) No 284/2012
  • The products are accompanied by a declaration issued before 1.6.2013 in accordance with the Implementing Regulation (EU) No 996/2012 and stating that the products have left Japan before 1.7.2013
  • The products left Japan before 2.6.2013 and comply with Implementing Regulation (EU) No 996/2012
  • Declaration for the import into the European Union of feed and food originating in or consigned from Japan (Commission Implementing Regulation (EU) No 322/2014); the products left Japan before 9 January 2016
  • Declaration for the import into the European Union of feed and food originating in or consigned from Japan (Commission Implementing Regulation (EU) No 996/2012) which was issued before 1 April 2014; the products left Japan from 1 April 2014 but before 1 May 2014
Check this code in the official EU TARIC database

EU tariff measure data of Sept. 1, 2026.

One last classification check

Check the path and the nearest alternatives.

Use this view if you are still unsure the code describes the product precisely.

How we got to this code

  1. VI
  2. 28
  3. 2811
  4. 2811 19
  5. 2811 19 80
Show the steps

Compare with the codes next to it.

Compare the sibling codes at this level before you settle on this one.

Classification decides the rate here: from duty free to 5.3%.

  • another option 2811 19 10 Hydrogen bromide "hydrobromic acid" Duty free
  • you are here 2811 19 80 Inorganic acids (excl. hydrogen chloride "hydrochloric acid", chlorosulphuric acid, sulphuric acid, oleum, nitric acid, sulphonitric acids, phosphoric acid, polyphosphoric acids, boric acids, hydrogen fluoride "hydrofluoric acid", hydrogen bromide "hydrobromic acid" and hydrogen cyanide "hydrocyanic acid") 5.3%

Duty rates shown here are estimates, read from official EU / Danish, Norwegian and UK tariff data for orientation only. Confirm the current rate with Toldstyrelsen, TARIC, Norwegian Customs or the UK Online Trade Tariff before you file. The rate you pay can also depend on the country of origin. These are base customs duties only: import VAT, excise duties, anti-dumping duties and safeguard or quota measures are not included.