NCM 28.31 – Dithionites and sulphoxylates

About NCM heading 28.31

Dithionites and sulphoxylates

Heading 28.31 of Brazil's NCM has 6 eight-digit codes. Official Portuguese description: Ditionitos e sulfoxilatos.

The first four digits, 2831, 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 28.31 guide.

NCM codes in heading 28.31 6

1. 2831.10 Dithionites and sulphoxylates; of sodiumDe sódio HS code
2. 2831.10.1 Dithionites (hydrosulphites) Ditionitos (hidrossulfitos)
3. 2831.10.11 Stabilised sodium dithioniteEstabilizados
4. 2831.10.19 Other sodium dithionitesOutros
5. 2831.10.2 Sulphoxylates Sulfoxilatos
6. 2831.10.21 Sodium formaldehyde sulphoxylateEstabilizados com formaldeído
7. 2831.10.29 Other sodium sulphoxylatesOutros
8. 2831.90 Dithionites and sulphoxylates; other than sodiumOutros HS code
9. 2831.90.10 Zinc dithioniteDitionito de zinco
10. 2831.90.90 Other dithionites and sulphoxylatesOutros