Brazil NCM · 4-digit heading

NCM 28.33 – Sulphates; alums; persulphates

About NCM heading 28.33

Sulphates; alums; peroxosulphates (persulphates)

Heading 28.33 of Brazil's NCM has 22 eight-digit codes. Official Portuguese description: Sulfatos; alumes; peroxossulfatos (persulfatos).

The first four digits, 2833, identify this heading within chapter 28. Its six-digit subheadings follow the international HS system; the final two digits distinguish Mercosur's NCM classifications. Select a code below to read its English translation, official Portuguese text and full classification path.

For product coverage and classification context, read the HS heading 28.33 guide.

NCM codes in heading 28.33 22

  1. 2833.1 Sodium sulphates: Sulfatos de sódio:
  2. 2833.11 Sodium sulphates; disodium sulphateSulfato dissódico HS code
  3. 2833.11.10 Anhydrous disodium sulphateAnidro
  4. 2833.11.90 Other disodium sulphateOutros
  5. 2833.19.00 Other sodium sulphatesOutros
  6. 2833.2 Other sulphates: Outros sulfatos:
  7. 2833.21.00 Magnesium sulphateDe magnésio
  8. 2833.22.00 Aluminium sulphateDe alumínio
  9. 2833.24.00 Nickel sulphateDe níquel
  10. 2833.25 Sulphates; of copperDe cobre HS code
  11. 2833.25.10 Cuprous sulphateCuproso
  12. 2833.25.20 Cupric sulphateCúprico
  13. 2833.27 Sulphates; of bariumDe bário HS code
  14. 2833.27.10 Barium sulphate, 97.5% BaSO4 or moreCom um teor de BaSO4 igual ou superior a 97,5 %, em peso
  15. 2833.27.90 Other barium sulphateOutros
  16. 2833.29 Sulphates; n.e.c. in item no. 2833.2Outros HS code
  17. 2833.29.10 Antimony sulphateDe antimônio
  18. 2833.29.20 Lithium sulphateDe lítio
  19. 2833.29.30 Strontium sulphateDe estrôncio
  20. 2833.29.40 Ferrous sulphateSulfato ferroso
  21. 2833.29.50 Neutral lead sulphateNeutro de chumbo
  22. 2833.29.60 Chromium sulphateDe cromo
  23. 2833.29.70 Zinc sulphateDe zinco
  24. 2833.29.90 Other sulphatesOutros
  25. 2833.30.00 AlumsAlumes
  26. 2833.40 Peroxosulphates (persulphates)Peroxossulfatos (persulfatos) HS code
  27. 2833.40.10 Sodium peroxosulphate (persulphate)De sódio
  28. 2833.40.20 Ammonium peroxosulphate (persulphate)De amônio
  29. 2833.40.90 Other peroxosulphates (persulphates)Outros

Source: Siscomex Classif NCM table, updated Oct 2026 (Resolução Gecex nº 926/2026). The Portuguese text is the official one; the English is our translation.