CAS 7782-50-5 · IECSC · People's Republic of China

Chlorine (Cl2) under IECSC

Cl2 · 氯气

Status: Listed. Chlorine is on the IECSC public portion. **Cl2 IS on China's Catalog of Hazardous Chemicals + Highly Toxic Chemicals Catalog**: heaviest-compliance substance in dataset alongside phenol batch 13 + formaldehyde batch 18 + benzene batch 22 + aniline batch 26 + EO batch 28 + TDI batch 31 + ammonia batch 37 + acrylonitrile batch 38 + nitric acid batch 40. NOT on Easily-Made Drugs Catalog. **0% China VAT export rebate**. China dominates global chlor-alkali capacity (~50%, ~40-45 Mt/yr Cl2 equivalent).

Chlorine is comfortably IECSC-listed but IS on **BOTH the Catalog of Hazardous Chemicals AND the Highly Toxic Chemicals Catalog**. **0% China VAT export rebate**. **Cl2 is structurally NOT internationally traded as bulk**. China dominates global chlor-alkali capacity (~50%, ~40-45 Mt/yr Cl2 equivalent) led by same producers as NaOH batch 1.

Listing and threshold

Substance Chlorine (Cl2) (CAS 7782-50-5), Cl2
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. Hazardous Chemicals Operation Permit required regardless of volume

Classifications under this regime

  • Listed in China's Catalog of Hazardous Chemicals
  • **Listed in China's Highly Toxic Chemicals Catalog** (Public Security Bureau supervision)
  • NOT on the Easily-Made Drugs Precursor Chemicals Catalog
  • GB 5138-2006 specification applies for industrial-grade chlorine (Chinese national standard)
  • GACC export classification: HS 280110 (chlorine)
  • China dominates global chlor-alkali capacity (~50%, ~40-45 Mt/yr Cl2 equivalent)
  • GB 6944-2012 dangerous-goods transport classification: Class 2.3 (toxic gas), UN 1017, refrigerated liquefied

Restrictions and conditions of use

  • **Hazardous Chemicals Operation Permit IS required**
  • **Highly Toxic Chemicals Public Security Bureau permit chain** required
  • Hazardous Chemicals Road Transport Permit required
  • **0% China VAT export rebate**
  • GB/T 17519 Chinese-language SDS required for domestic distribution

Importer obligations

For Chinese-origin Cl2 exported abroad, no IECSC obligation falls on the foreign importer. **Highly Toxic Chemicals + Hazardous Chemicals dual-permit chain**. **Cl2 is structurally NOT internationally traded as bulk**; intra-complex captive consumption dominates for downstream chlor-alkali integrated PVC batch 10 + HCl batch 4 + organochlorine production.

Required documents

  • GACC export declaration with HS code 280110
  • Industrial-grade certificate per GB 5138-2006
  • 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)
  • Hazardous Chemicals Operation Permit chain documentation
  • **Highly Toxic Chemicals Public Security Bureau permit chain documentation**
  • GB 6944-2012 Class 2.3 dangerous-goods transport documentation

Common compliance traps

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

  • **Highly Toxic Chemicals + Hazardous Chemicals dual-permit chain is the heaviest compliance overhead**
  • **0% China VAT export rebate**
  • **Cl2 is structurally NOT internationally traded as bulk**
  • Major Chinese producers: same as NaOH batch 1 (Sinopec + Wanhua + Hengli + Tangshan Sanyou + Shandong Haihua chlor-alkali integrated capacity)
  • Production: chlor-alkali membrane-cell electrolysis (~99% globally); coal-fed Chinese chlor-alkali (~50% Chinese capacity) higher embedded CO2
  • **NaOH batch 1 structural co-product**: ~1.1 t Cl2 per tonne NaOH
  • Chlorine-specific incident catalogue per CSB.gov drives heavy Chinese Public Security Bureau supervision (Bhopal 1984 was an MIC release, not a chlorine incident, and is not chlorine disaster legacy; verify chlorine-specific incidents against CSB.gov)

Where to read next

For substance-level identifiers (formula, molecular weight, SMILES, InChIKey), GHS hazard profile, IMDG transport class, and full sourcing reference for chlorine (cl2), see the CAS 7782-50-5 sourcing reference.

For grade-by-grade buying notes, freight maths, supplier-tier pricing, and a worked landed-cost example, the chlorine (cl2) 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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