HS code · 6-digit subheading
HS Code 2833.11 – Sodium sulphates; disodium sulphate
HS code 2833.11 is the 6-digit subheading for sodium sulphates, disodium sulphate. It is used for anhydrous sodium sulphate, sodium sulphate decahydrate (Glauber's salt), salt cake, detergent-grade sodium sulphate and industrial-grade sodium sulphate.
What HS 2833.11 covers
Disodium sulphate, commonly known as sodium sulphate, is a widely traded inorganic salt with significant industrial applications. Its anhydrous form, often called salt cake, is a key raw material in the detergent industry as a filler, in the pulp and paper industry for the Kraft process, and in glass manufacturing. The decahydrate form, Glauber's salt, is used in textiles for dyeing and in some pharmaceutical preparations. Major chemical producers and distributors are central to its international trade, supplying to a broad spectrum of manufacturing sectors. The global market is influenced by the demand for detergents and paper products, making it a high-volume commodity. Its relatively low cost and versatile properties ensure its consistent demand across various economies, with trade patterns reflecting industrial production capacities worldwide.
- Covers
- Anhydrous sodium sulphate
- Sodium sulphate decahydrate (Glauber's salt)
- Salt cake
- Detergent-grade sodium sulphate
- Industrial-grade sodium sulphate
- Pharmaceutical-grade sodium sulphate
- Examples
- BASF Sodium Sulphate
- Solvay Sodium Sulphate
- Merck Sodium Sulphate
- PQ Corporation Sodium Sulphate
Codes often confused with 2833.11
Common mistake. This code specifically covers disodium sulphate. It might be confused with other sodium sulphates under 283319 if the "disodium" aspect is not carefully noted, or with other sulphates like magnesium sulphate (283321) if the cation is overlooked.
Top exporters and importers of HS code 283311, 2025
In 2025, the largest exporter of HS code 283311 in UN Comtrade data was China, with 52% of world exports; the largest importer in UN Comtrade data was Brazil, with 12% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 China $246M 52% of world exports
- 2 Spain $131M 28% of world exports
- 3 India $20M 4.3% of world exports
World total: $473M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Brazil $78M 12% of world imports
- 2 Bangladesh* ~$35M 5.4% of world imports · partner records ↗
- 3 Colombia $33M 5.1% of world imports
World total: $651M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM codes for 2833.11 2
Brazil splits HS 2833.11 into 2 NCM codes, Mercosur's 8-digit tariff lines.
All Brazil NCM codes in heading 28.33 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2833.11
What is HS code 283311?
HS code 283311 is a 6-digit subheading in the Harmonized System that covers: Sodium sulphates; disodium sulphate. Disodium sulphate, commonly known as sodium sulphate, is a widely traded inorganic salt with significant industrial applications. Its anhydrous form, often called salt cake, is a key raw material in the detergent industry as a filler, in the pulp and paper industry for the Kraft process, and in glass manufacturing. The decahydrate form, Glauber's salt, is used in textiles for dyeing and in some pharmaceutical preparations. Major chemical producers and distributors are central to its international trade, supplying to a broad spectrum of manufacturing sectors. The global market is influenced by the demand for detergents and paper products, making it a high-volume commodity. Its relatively low cost and versatile properties ensure its consistent demand across various economies, with trade patterns reflecting industrial production capacities worldwide.
What products fall under HS code 283311?
Anhydrous sodium sulphate, Sodium sulphate decahydrate (Glauber's salt), Salt cake, Detergent-grade sodium sulphate, Industrial-grade sodium sulphate, Pharmaceutical-grade sodium sulphate
What are common misclassifications for HS code 283311?
This code specifically covers disodium sulphate. It might be confused with other sodium sulphates under 283319 if the "disodium" aspect is not carefully noted, or with other sulphates like magnesium sulphate (283321) if the cation is overlooked.
Which countries are the top exporters of goods under HS code 283311?
In 2025, the top exporters of HS code 283311 in UN Comtrade data were China ($246M, 52% of world exports), Spain ($131M) and India ($20M). World exports came to about $473M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 283311?
In 2025, the top importers of HS code 283311 in UN Comtrade data were Brazil ($78M, 12% of world imports), Bangladesh (about $35M) and Colombia ($33M). World imports came to about $651M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 283311 structured?
HS code 283311 is a 6-digit subheading under the Harmonized System. The first 2 digits (28) identify the chapter, digits 3-4 (33) identify the heading, and digits 5-6 (11) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 283311?
Brazil splits HS code 283311 into 2 NCM codes: 2833.11.10 (Anhydrous disodium sulphate), 2833.11.90 (Other disodium sulphate). The first 6 digits of each match the HS code.