Sodium Dithionite (CAS 7775-14-6): import duty, licences and trade rules in India

Sodium dithionite is an inorganic sodium salt that is the disodium salt of dithionous acid. For trade in India: OK to trade, but watch: import duty. Import duty is about 27.73% (tariff item 2831 10 10). Anti-dumping duty applies: China PR: US$ 440 per tonne; Korea RP: US$ 300 per tonne. DGFT policy: import Free, export Free.

OK to trade, but watch: import duty.

Checked 2026-10-31 against official Indian and international lists. Sources are given under each answer.

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Key facts

CAS number7775-14-6
FormulaNa2O4S2
Also calledSODIUM HYDROSULFITE, Sodium hydrosulphite, Vatrolite, Sodium sulfoxylate
Tariff item (HS)2831 10 10
Total import dutyabout 27.73%
Anti-dumping duty (most producers)China PR: US$ 440 per tonne; Korea RP: US$ 300 per tonne
DGFT import policyFree
DGFT export policyFree
SCOMET (export control)Not listed
NDPS / precursorNot listed

Every answer, with its source

Rules in IndiaOK

No special Indian ban or licence found
  • Not on the Indian banned-pesticide, drug-precursor, narcotic, psychotropic or new-drug lists we check.
  • Normal factory, storage and GST rules still apply.
  • Import policy (DGFT ITC(HS)) for tariff item 2831 10 10: Free, so no import licence is needed under trade policy.
Source: CIB&RC pesticide lists · CDSCO new drug approvals · NDPS RCS Order 2013 · DGFT ITC(HS) 2022, Schedule 1 Import Policy

Exporting from IndiaOK

No export licence needed
  • Not on the SCOMET export-control list or the precursor export list.
  • The buyer’s country may still have its own import rules.
  • Export policy (DGFT ITC(HS)) for tariff item 2831 10 10: Free.

Global treaties & export marketsOK

No treaty or export-market restriction found
  • Not listed by the Stockholm Convention (persistent pollutants), the Rotterdam Convention (prior consent before export) or the Montreal Protocol (ozone layer).
  • Registered under EU REACH, so EU importers can buy it under an existing registration.
  • Active on the US TSCA Inventory, so it can be imported into the US without a new-chemical notice.
  • Listed on the Australian Inventory of Industrial Chemicals (AICIS), so it can be introduced into Australia as an existing industrial chemical.
  • EU: harmonised classification (CLP Annex VI, index 016-028-00-1): Self-heat. 1, Acute Tox. 4. Suppliers in the EU must label it this way.

Import dutyCHECK

About 27.73% of the import value + anti-dumping duty from some countries
  • Anti-dumping duty on sodium hydrosulphite (sodium dithionite). From China PR: US$ 440 per tonne for most producers. From Korea RP: US$ 300 per tonne for most producers. Named producers pay their own amount only with their declaration on the invoice. Notification 71/2021-Customs (ADD), in force until 16 Dec 2026.
  • About ₹27,730 duty on every ₹1,00,000 of import value (CIF).
  • Made up of basic customs duty 7.5%, social welfare surcharge 0.75% and IGST 18%. IGST can usually be claimed back as input tax credit.
  • Tariff item 2831 10 10: Sodium dithionites (sodium hydrosulphite).
Source: Customs Tariff of India, CBIC · Notification 45/2025-Customs · Notification 9/2025-Integrated Tax (Rate) · CBIC Customs (ADD) notifications 2021-2026

SafetyCHECK

Dangerous: handle with proper protection
  • Catches fire easily
  • Irritates skin, eyes or breathing
  • Self-heating; may catch fire
  • Harmful if swallowed
  • Causes skin irritation
  • Causes serious eye irritation
  • Always read the supplier’s safety data sheet (SDS) before handling.

Storage, transport & PESOOK

Dangerous goods for transport
  • Ships as UN 1384 (Spontaneously Combustible): dangerous-goods rules apply by road, sea (IMDG) and air (IATA), with labels, packaging and a transport document.
Source: UN numbers (CAMEO Chemicals, via PubChem)

Price and suppliersNO DATA

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Questions about Sodium Dithionite

What is the import duty on Sodium Dithionite in India?

The total import duty on Sodium Dithionite is about 27.73% of the import value under tariff item 2831 10 10, including basic customs duty, the social welfare surcharge and IGST. Check the latest notifications before you import.

Is there anti-dumping duty on Sodium Dithionite?

Anti-dumping duty on sodium hydrosulphite (sodium dithionite). From China PR: US$ 440 per tonne for most producers. From Korea RP: US$ 300 per tonne for most producers. Named producers pay their own amount only with their declaration on the invoice. Notification 71/2021-Customs (ADD), in force until 16 Dec 2026.

What is the HS code (tariff item) of Sodium Dithionite in India?

Sodium Dithionite falls under tariff item 2831 10 10 of the Customs Tariff of India.

Is Sodium Dithionite restricted or licensed in India?

No special Indian ban or licence found. Not on the Indian banned-pesticide, drug-precursor, narcotic, psychotropic or new-drug lists we check. Normal factory, storage and GST rules still apply.

Can Sodium Dithionite be imported freely into India?

Under DGFT's ITC(HS) import policy, Sodium Dithionite is Free.

Does exporting Sodium Dithionite from India need a licence?

No export licence needed. Not on the SCOMET export-control list or the precursor export list.

Is Sodium Dithionite hazardous?

Dangerous: handle with proper protection. Catches fire easily. Irritates skin, eyes or breathing. Self-heating; may catch fire.

Is Sodium Dithionite regulated under global treaties or in the EU and US?

No treaty or export-market restriction found. Not listed by the Stockholm Convention (persistent pollutants), the Rotterdam Convention (prior consent before export) or the Montreal Protocol (ozone layer). Registered under EU REACH, so EU importers can buy it under an existing registration.

Related chemicals

Guidance from official lists, not legal advice. Rules change; confirm with DGFT, customs or the regulator before you trade.