Product classification
HS code for Disodium phosphate: 2835.22
Phosphates, of mono- or disodium, whether or not chemically defined.
Classification of disodium phosphate under HS 2835.22
Disodium phosphate is classified under HS code 2835.22. This classification falls within Chapter 28, which covers inorganic chemicals. Heading 2835 is dedicated to phosphinates (hypophosphites), phosphonates (phosphites), and phosphates. The classification is highly specific to the chemical structure of the product. Disodium phosphate, also known as disodium hydrogen phosphate, is a sodium salt of phosphoric acid. According to the General Rules of Interpretation (GRI 1), the product is classified based on its chemical identity as a phosphate of sodium. Subheading 2835.22 specifically identifies phosphates of mono- or disodium. To remain in this classification, the product must be a separate chemically defined compound. If the disodium phosphate is mixed with other ingredients to create a specific functional preparation (like a food additive mix), it may be classified elsewhere, but the pure chemical form is strictly 2835.22.
- Covers
- Anhydrous disodium phosphate
- Disodium phosphate dihydrate
- Disodium phosphate heptahydrate
- Disodium phosphate dodecahydrate
- Food-grade disodium phosphate (pure)
- Also under 2835.22
- Kraft Mac & Cheese (emulsifier)
- Baking Powder (leavening agent)
- Dishwasher Detergents (Cascade, Finish)
- pH Buffers (laboratory use)
- Laxatives (Fleet Enema)
Codes often confused with 2835.22
Common mistake. Disodium phosphate is often confused with HS code 2835.24, which is for phosphates of potassium. Another common misclassification occurs with HS code 3103, which covers mineral or chemical phosphatic fertilizers. While disodium phosphate contains phosphorus, it is typically used in industrial or food applications rather than as a fertilizer. If it is part of a prepared detergent, it might be misclassified under 3402, but the pure chemical remains in 2835.22.
Top exporters and importers of HS 283522 (the code used for disodium phosphate), 2025
In 2025, the largest exporter of HS 283522 (the code used for disodium phosphate) in UN Comtrade data was Germany, with 40% of world exports; the largest importer in UN Comtrade data was the United States, with 13% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 283522, not only disodium phosphate.
Top exporters 2025 · share of world exports
- 1 Germany $65M 40% of world exports
- 2 China $28M 17% of world exports
- 3 United States $20M 12% of world exports
World total: $163M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $23M 13% of world imports
- 2 Canada $8.2M 4.5% of world imports
- 3 South Korea $7.9M 4.3% of world imports
World total: $184M 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 that did not report are estimated from what other countries recorded trading with them. 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 code for disodium phosphate
Brazil classifies disodium phosphate under NCM 2835.22.00: HS 2835.22 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about disodium phosphate
What is the HS code for Disodium phosphate?
The HS code for Disodium phosphate is 283522 (Phosphates; of mono- or disodium, whether or not chemically defined). The HS code for disodium phosphate, as a separate chemically defined inorganic compound, is 2835.22.
How do I classify Disodium phosphate for customs?
Disodium phosphate is classified under HS code 283522 — Phosphates; of mono- or disodium, whether or not chemically defined. This is a 6-digit subheading level code.
Does the hydration state change the HS code?
No, whether the disodium phosphate is anhydrous or hydrated (e.g., dihydrate or dodecahydrate), it remains classified under HS code 2835.22 as long as it is not mixed with other substances.
Which countries are the top exporters of disodium phosphate (HS 283522)?
In 2025, the top exporters of HS 283522 (the code used for disodium phosphate) in UN Comtrade data were Germany ($65M, 40% of world exports), China ($28M) and the United States ($20M). World exports came to about $163M, 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 disodium phosphate (HS 283522)?
In 2025, the top importers of HS 283522 (the code used for disodium phosphate) in UN Comtrade data were the United States ($23M, 13% of world imports), Canada ($8.2M) and South Korea ($7.9M). World imports came to about $184M, 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.
Is the HS code for Disodium phosphate the same in all countries?
The base HS code 283522 for Disodium phosphate is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for disodium phosphate in Brazil?
In Brazil, disodium phosphate (HS 283522) is classified under NCM 2835.22.00.