CAS 1310-73-2 · IECSC · People's Republic of China

Sodium hydroxide (caustic soda) under IECSC

NaOH · 氢氧化钠

Status: Listed. Sodium hydroxide is on the IECSC under both the public and confidential portions; it is one of the foundational industrial chemicals in the Chinese inventory dating back to the 2003 baseline. New-substance notification under MEE Decree No. 7 (2010, "Provisions on Environmental Management of New Chemical Substances") is NOT required.

NaOH is comfortably IECSC-listed and operationally clean on the China side: the work is the Hazardous Chemicals Operation Permit chain at each handover and the GB/T 17519 Chinese-language SDS. China-specific export rules apply more to the cargo than to the substance: the Hazardous Chemicals Import Filing (for inbound) and the Operation Permit chain (for domestic handling) are the documents that decide whether the cargo moves cleanly.

Listing and threshold

Substance Sodium hydroxide (caustic soda) (CAS 1310-73-2), NaOH
Regime China Inventory of Existing Chemical Substances (IECSC), administered by the Ministry of Ecology and Environment (MEE)
Jurisdiction People's Republic of China
Status Listed
Tonnage threshold No new-substance threshold applies (substance is IECSC-listed). General hazardous-chemical handling permits required for import / storage / sale above thresholds set by MEE / MIIT regulations.

Classifications under this regime

  • Listed in China's "Catalog of Hazardous Chemicals" (《危险化学品目录》, 2015 version)
  • Hazard category: Class 8 corrosive (UN 1823 / UN 1824 in domestic GB labelling)
  • GB 30000.5-2013 GHS: Skin Corrosion / Irritation Cat 1A
  • NOT on the China State Council's "Highly Toxic Chemicals Catalog" (《剧毒化学品名录》)

Restrictions and conditions of use

  • Hazardous Chemicals Operation Permit (危险化学品经营许可证) required for distributors and end-users above threshold
  • Hazardous Chemicals Storage Approval (危险化学品储存审批) required for storage above 1 t in a single facility
  • Transport licence (运输资质) required for road / rail transport (different rules from sea cargo IMDG)
  • No specific export-restriction or quota system applies to caustic soda

Importer obligations

For Chinese-origin caustic soda exported abroad, no IECSC obligation falls on the foreign importer. For inbound caustic-soda imports into China (rare; China is a net exporter), the Chinese importer must verify IECSC listing (it is listed) and hold the Hazardous Chemicals Import Filing (危险化学品进口备案) at the destination customs port. Sourzi-side practice: IECSC compliance is verified via the State Taxation Administration / GACC databases and built into the export documentation pack.

Required documents

  • GACC export declaration with HS code 281511 (solid) or 281512 (liquid)
  • GHS-compliant SDS in Simplified Chinese per GB/T 17519-2013 (effective 31 January 2014, references UN GHS 4th revised edition; verify against the current version of GB/T 17519 at https://www.codeofchina.com/standard/GBT17519-2013.html)
  • Manufacturer's Hazardous Chemicals Operation Permit copy (used by the export-side broker)
  • Test certificate (合格证) issued by a CMA-accredited Chinese laboratory if downstream destination requires

Common compliance traps

The pitfalls that have bitten importers on this lane in the past. None of these is theoretical.

  • IECSC public portion lists most common substances; confidential portion (CBI) requires MEE inquiry for verification, but usually the public portion is sufficient for caustic soda
  • New-substance notification triggers if a producer modifies process to produce a structurally distinct material (e.g. specialty grades with novel additives); verify each grade against IECSC
  • China Hazardous Chemicals Operation Permit must be held by every party in the chain (manufacturer, distributor, end-user) at each handover
  • GACC sometimes blocks shipments at port if SDS is missing required Chinese-only fields (emergency contact in mainland China format, GHS Chinese-language pictograms)

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 hydroxide (caustic soda), see the CAS 1310-73-2 sourcing reference.

For grade-by-grade buying notes, freight maths, supplier-tier pricing, and a worked landed-cost example, the sodium hydroxide (caustic soda) cornerstone hub covers the full sourcing chain.

For the structure and history of IECSC, see the IECSC 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

Referenced in

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