Sodium sulfate (Glauber's salt) under K-REACH
Na2SO4 · 硫酸钠
Status: Registered. Sodium sulfate is registered under K-REACH. NOT on Korea TCCA Toxic Chemicals list (verify against the current TCCA Toxic Chemicals list at https://www.nics.go.kr/ before relying). NOT on Korean Drug Management Act precursor list. NO active Korean AD/CVD case on Chinese-origin sodium sulfate currently (verify against https://www.kita.org/ or Korea Trade Commission filings before invoicing). Korea has limited domestic sodium sulfate production; structurally net-importer for pulp / paper plus detergent plus glass plus textile sectors. KCFTA preferential zero-duty applies for Chinese-origin imports.
K-REACH treats sodium sulfate as a routine registered substance with no TCCA overlay. Korea limited domestic production; structurally net-importer. NO active Korean AD/CVD case. **Sodium sulfate distinguishing pattern across all 5 regimes**: Two production routes (natural mirabilite + saline-lake brine, China-dominant in Sichuan + Inner Mongolia + Qinghai + Xinjiang saline-lake belts; synthetic rayon / viscose by-product + Mannheim sulfate + KCl + H2SO4 by-product + chemical industry brine-acid neutralisation streams) + Glauber's salt = decahydrate Na2SO4.10H2O (CAS 7727-73-3) historically named after Johann Glauber 1625 + pulp / paper Kraft chemical recovery + detergent filler + glass batch + textile dyeing + tanning + laxative + heat-storage downstream chains + low hazard profile across regimes (respirable dust handling) + China VAT export rebate.
Listing and threshold
| Substance | Sodium sulfate (Glauber's salt) (CAS 7757-82-6), Na2SO4 |
|---|---|
| Regime | Korea Act on the Registration and Evaluation of Chemicals (Act No. 11789, "K-REACH" amended 2018) |
| Jurisdiction | Republic of Korea |
| Status | Registered |
| Tonnage threshold | K-REACH registration required for existing chemicals manufactured or imported >1 tonne/year (verified per Korean Ministry of Environment / NIER guidance, https://chemical.chemlinked.com/chempedia/k-reach; threshold for new substances was reduced from 0.1 t/y to 1 t/y effective 1 January 2025 per K-REACH 2025 amendment) |
Classifications under this regime
- Korean GHS classification: NOT typically classified as hazardous beyond particulate dust
- NOT on Korea TCCA Toxic Chemicals list
- NOT on Korean Drug Management Act precursor list
- Korean Customs Service (KCS) HS code: 283311 / 283319
- IARC: Not classified
Restrictions and conditions of use
- No TCCA Toxic Chemicals Handling Permit required
- KOSHA MSDS in Korean required at workplace (low hazard, respirable dust applies)
- NO active Korean AD/CVD case on Chinese sodium sulfate currently
- KCFTA preferential zero-duty applies (HS 283311 / 283319)
Importer obligations
Korean importer of record must hold K-REACH registration. Korea limited domestic sodium sulfate production; structurally net-importer.
Required documents
- K-REACH registration number on Korean side
- Korean MSDS (with respirable particulate dust handling notes)
- KCS declaration with HS 283311 / 283319
- China-Korea FTA Form CO
Common compliance traps
The pitfalls that have bitten importers on this lane in the past. None of these is theoretical.
- Korea limited domestic sodium sulfate production; structurally net-importer
- KCFTA preferential zero-duty applies
- NO active Korean AD/CVD case
- NOT on TCCA Toxic Chemicals list
Where to read next
For substance-level identifiers (formula, molecular weight, SMILES, InChIKey), GHS hazard profile, IMDG transport class, and full sourcing reference for sodium sulfate (glauber's salt), see the CAS 7757-82-6 sourcing reference.
For grade-by-grade buying notes, freight maths, supplier-tier pricing, and a worked landed-cost example, the sodium sulfate (glauber's salt) cornerstone hub covers the full sourcing chain.
For the structure and history of K-REACH, see the K-REACH glossary entry.
Need cross-jurisdiction compliance support on this substance? Run it through the REACH / TSCA / IECSC / AICIS / K-REACH checker, or send us the substance and the destination and we will quote FOB China and CIF / DDP landed including the regulatory work on the destination side.
Read next
Cross-jurisdiction profile and sourcing references
Regulatory
Sodium sulfate (Glauber's salt) under REACH
European Union listing status, classifications, importer obligations.
Regulatory
Sodium sulfate (Glauber's salt) under TSCA
United States of America listing status, classifications, importer obligations.
Regulatory
Sodium sulfate (Glauber's salt) under IECSC
People's Republic of China listing status, classifications, importer obligations.
Regulatory
Sodium sulfate (Glauber's salt) under AICIS
Australia listing status, classifications, importer obligations.
Glossary
K-REACH, K-REACH
South Korean Act on the Registration and Evaluation of Chemicals, the Korean equivalent of EU REACH. Requires registration of substances manufactured in or imported into Korea above 1 tonne per year. Administered by the Ministry of Environment through NIER. Includes phase-in registration tiers, joint submission requirements, and a designated 'Only Representative' mechanism for non-Korean manufacturers.
Referenced in
4 pages across the Sourzi moat
This term shows up in 4 regulatory pages. Sample backlinks per content type below.
Regulatory (4)
Sodium sulfate (Glauber's salt) under REACH
European Union compliance profile for Sodium sulfate (Glauber's salt).
Sodium sulfate (Glauber's salt) under TSCA
United States of America compliance profile for Sodium sulfate (Glauber's salt).
Sodium sulfate (Glauber's salt) under IECSC
People's Republic of China compliance profile for Sodium sulfate (Glauber's salt).
Plus 1 more regulatory pages.
Free download
Free PDF: the same MSDS verification template the Sourzi team uses to cross-reference factory documents against TSCA, REACH, AICIS, and CDR before booking.