CAS 7727-21-1 · IECSC · People's Republic of China

Potassium peroxydisulfate (K2S2O8) under IECSC

K2S2O8 · 过硫酸钾

Status: Listed. Potassium peroxydisulfate is on IECSC as an existing chemical. **China is the dominant global producer of persulfates (sodium + ammonium + potassium)**; major Chinese persulfate producers Yatai Chemical (Liaoning) + Wuxi Honour (Jiangsu) + Hebei Jiheng + ABA Chemicals (Jiangyin) + Yatai Foshan (Guangdong); verify each producer-site pair against the producer's public website before relying. **Subject to historical US AD/CVD A-570-847 + EU AD Reg (EC) No 1184/2007 + 1192/2008 + extended successor measures** (verify exact current measures + duty rates per producer against access.trade.gov + EUR-Lex before invoicing). **China Hazardous Chemicals Catalogue (2015 edition) lists potassium peroxydisulfate as a hazardous chemical** (verify against https://www.mem.gov.cn/ before relying); **Production + storage + use license required per State Council Decree 591**.

IECSC treats potassium peroxydisulfate as a Hazardous Chemicals Catalogue (2015) listed substance with **State Council Decree 591 production / storage / use license requirement**. **China is the dominant global persulfate producer**; export consignment subject to **historical US AD/CVD A-570-847 + EU AD Reg (EC) 1184/2007 + 1192/2008 + extended successor measures**. Major Chinese producers: Yatai Chemical Liaoning + Wuxi Honour Jiangsu + Hebei Jiheng + ABA Chemicals Jiangyin + Yatai Foshan. **AD/CVD on persulfates is the practical Chinese-origin export compliance pivot.**

Listing and threshold

Substance Potassium peroxydisulfate (K2S2O8) (CAS 7727-21-1), K2S2O8
Regime China Inventory of Existing Chemical Substances (IECSC), administered by Ministry of Ecology and Environment (MEE)
Jurisdiction People's Republic of China
Status Listed
Tonnage threshold New Chemical Substance Notification (NCSN) under MEE Decree 12 not required (existing chemical)

Classifications under this regime

  • IECSC Listed Existing Chemical
  • GB 30000 GHS classification: Ox. Sol. 3 + Skin Irrit. 2 + Eye Irrit. 2 + STOT SE 3 + Acute Tox. 4 inhalation + Resp. Sens. 1 + Skin Sens. 1 (verify against current GB 30000-series at http://www.csres.com/ + http://www.std.samr.gov.cn/ before relying)
  • **China Hazardous Chemicals Catalogue (2015 edition) listed** (verify against https://www.mem.gov.cn/ before relying)
  • **Production + storage + use license required per State Council Decree 591** (Regulations on the Safety Management of Hazardous Chemicals)
  • JT/T 617 / GB 12268 hazardous-goods transport: UN 1492 Class 5.1 PG III oxidiser (verify against current GB 12268 + JT/T 617 dangerous-goods transport regulations at http://www.std.samr.gov.cn/ + http://www.mot.gov.cn/ before consigning)
  • **Subject to historical US AD/CVD A-570-847 + EU AD Reg (EC) No 1184/2007 + 1192/2008 + extended successor measures on persulfates** (verify exact current measures + duty rates per producer against access.trade.gov + EUR-Lex before invoicing)
  • IARC: Not classified (verify against https://monographs.iarc.who.int/ before relying)

Restrictions and conditions of use

  • **Hazardous Chemicals Catalogue + State Council Decree 591 license requirements**
  • GB 30000 GHS labelling required
  • Customs HS 283340 (peroxosulphates persulphates)
  • No CBAM equivalent in Chinese domestic regulation
  • NOT subject to active Chinese AD/CVD on persulfates; China is the dominant global producer + major exporter
  • **China VAT export rebate on persulfates has historically varied (verify per HS line + current SAT / MOFCOM circulars before invoicing)**

Importer obligations

Chinese importer of record must hold IECSC listing reliance + **Hazardous Chemicals Production / Storage / Use License per State Council Decree 591**. **China is the dominant global persulfate producer; export consignment is subject to historical US AD/CVD A-570-847 + EU AD scope determination per producer at destination**.

Required documents

  • **Hazardous Chemicals Production / Storage / Use License per State Council Decree 591**
  • GB-compliant SDS in Chinese (Ox. Sol. 3 + Resp. Sens. 1 + Skin Sens. 1 + Acute Tox. 4 inhalation)
  • GB hazardous-goods transport documentation UN 1492 Class 5.1 PG III oxidiser
  • China Customs (CCS) declaration HS 283340
  • **Outbound to US / EU: AD/CVD documentation per case + per producer (verify against access.trade.gov + EUR-Lex per case)**

Common compliance traps

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

  • **China is the dominant global persulfate producer**; major Chinese producers Yatai Chemical Liaoning + Wuxi Honour Jiangsu + Hebei Jiheng + ABA Chemicals Jiangyin + Yatai Foshan
  • **Subject to historical US AD/CVD A-570-847 + EU AD Reg (EC) 1184/2007 + 1192/2008 + extended successor measures on persulfates (verify per producer at access.trade.gov + EUR-Lex)**
  • **China Hazardous Chemicals Catalogue (2015 edition) listed; State Council Decree 591 license required**
  • GB 30000 GHS classification (Ox. Sol. 3 + Resp. Sens. 1 + Skin Sens. 1 + Acute Tox. 4 inhalation)
  • JT/T 617 / GB 12268 UN 1492 Class 5.1 PG III oxidiser + ATEX dust-explosion hazard during handling + storage
  • **Emulsion polymerisation initiator + electronic-industry etchant + cosmetics hair-bleaching + TOC analyser downstream chains**

Where to read next

For substance-level identifiers (formula, molecular weight, SMILES, InChIKey), GHS hazard profile, IMDG transport class, and full sourcing reference for potassium peroxydisulfate (k2s2o8), see the CAS 7727-21-1 sourcing reference.

For grade-by-grade buying notes, freight maths, supplier-tier pricing, and a worked landed-cost example, the potassium peroxydisulfate (k2s2o8) cornerstone hub covers the full sourcing chain.

For the structure and history of IECSC, see the IECSC glossary entry.

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Cross-jurisdiction profile and sourcing references

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