CAS 7681-52-9 · REACH · European Union

Sodium hypochlorite under REACH

NaClO · 次氯酸钠

Status: Registered. Sodium hypochlorite is fully registered under REACH. **Distinguishing pattern: chlor-alkali co-product (chlorine gas plus sodium hydroxide; absorption of Cl2 in NaOH solution) production route + disinfectant plus bleaching plus water-treatment downstream chains (industrial concentration ~10 to 15 percent active chlorine; household bleach ~5 percent) + Skin Corr. 1B plus Aquatic Acute 1 plus Eye Dam. 1 hazard profile + releases chlorine gas if mixed with acids (incompatibility critical for transport and storage).** Reg (EC) 1272/2008 harmonised: Skin Corr. 1B (H314) plus Aquatic Acute 1 (H400) plus Eye Dam. 1 (H318) plus EUH031 (contact with acids liberates toxic gas) for solutions >5 percent active chlorine. NOT SVHC. NOT Annex XIV. **Sodium hypochlorite IS a Biocidal Products Regulation (BPR Reg (EU) 528/2012) active substance** approved for product types PT 1 to PT 5 plus PT 11 plus PT 12 (verify against ECHA BPR active-substance database https://echa.europa.eu/regulations/biocidal-products-regulation/approval-of-active-substances/list-of-approved-active-substances before relying on a specific product type). NO active EU AD case on Chinese-origin sodium hypochlorite currently (verify against EUR-Lex https://eur-lex.europa.eu/ before invoicing).

Sodium hypochlorite is fully REACH-registered with **Skin Corr. 1B plus Aquatic Acute 1 plus Eye Dam. 1 plus EUH031**. NOT SVHC, NOT Annex XIV. NO active EU AD. **BPR active substance** approved for PT 1 to PT 5 plus PT 11 plus PT 12 (verify before relying). **Releases chlorine gas if mixed with acids**; transport and storage incompatibility critical. Major Chinese producers (chlor-alkali integrated): Sinopec multi-site, Wanhua Chemical Yantai, Hengli Petrochemical Dalian, CNSIC, Befar Group Shandong. Production: chlor-alkali co-product.

Listing and threshold

Substance Sodium hypochlorite (CAS 7681-52-9), NaClO
Regime EU Regulation (EC) No 1907/2006: Registration, Evaluation, Authorisation and Restriction of Chemicals
Jurisdiction European Union (EU-27 plus EEA: Iceland, Liechtenstein, Norway)
Status Registered
Tonnage threshold Registration required for any importer or manufacturer placing >1 t/year on the EU market

Classifications under this regime

  • Harmonised CLP classification (for solutions >5 percent active chlorine): Skin Corr. 1B (H314), Aquatic Acute 1 (H400), Eye Dam. 1 (H318), EUH031 (verify against ECHA C&L Inventory before relying on the exact concentration limits)
  • Signal word: DANGER. GHS pictograms: GHS05 + GHS09
  • IARC: Hypochlorite salts not separately classified; verify against https://monographs.iarc.who.int/list-of-classifications
  • NOT subject to Drug Precursors or Explosives Precursors scheduling
  • ADR / RID transport classification: Class 8 (corrosive), UN 1791 (hypochlorite solution), Packing Group II or III depending on active chlorine
  • **BPR active substance** approved for PT 1 to PT 5 plus PT 11 plus PT 12 (verify against ECHA BPR active-substance database before relying on the exact PT scope)

Restrictions and conditions of use

  • NOT on REACH Annex XIV (verify against ECHA https://echa.europa.eu/authorisation-list)
  • NOT classified as SVHC (verify against ECHA https://echa.europa.eu/candidate-list-table)
  • NOT subject to any Annex XVII restriction at industrial-grade level
  • NO active EU AD case on Chinese-origin sodium hypochlorite currently (verify against EUR-Lex https://eur-lex.europa.eu/ before invoicing)
  • NOT in CBAM Phase 1 scope
  • **BPR Reg (EU) 528/2012 active substance** approval applies for biocidal-product placing on EU market (verify against ECHA BPR before relying)

Importer obligations

A non-EU producer cannot register directly under REACH. The EU importer of record must hold a registration or rely on an Only Representative (OR). Major Chinese producers (chlor-alkali integrated): Sinopec multi-site, Wanhua Chemical Yantai, Hengli Petrochemical Dalian, China National Salt Industry Corporation (CNSIC), Befar Group Shandong (verify each producer-site pair against the producer's public website before relying on a specific plant).

Required documents

  • REACH registration number on EU side
  • SDS reflecting H290 / H314 / H318 / H400 / EUH031 classification (concentration-dependent)
  • CLP labelling with GHS05 + GHS09 + DANGER
  • Customs entry HS code 282890 (other chlorates and perchlorates; hypobromites etc; the specific hypochlorite tariff line is verified against the most recent EU TARIC schedule before invoicing)
  • ADR consignment note Class 8, UN 1791, PG II or III
  • **BPR product authorisation** where placed as biocidal product (verify against ECHA BPR before relying)

Common compliance traps

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

  • **BPR Reg (EU) 528/2012 active substance** approval for PT 1 to PT 5 plus PT 11 plus PT 12 (verify against ECHA BPR active-substance database before relying on the exact PT scope)
  • NOT SVHC, NOT Annex XIV, NO active EU AD
  • **Releases chlorine gas if mixed with acids** (EUH031); transport and storage incompatibility critical
  • Major Chinese producers (chlor-alkali integrated): Sinopec multi-site, Wanhua Chemical Yantai, Hengli Petrochemical Dalian, China National Salt Industry Corporation (CNSIC), Befar Group Shandong
  • Production: chlor-alkali co-product (Cl2 absorption in NaOH solution); demand split between household bleach (~5 percent active chlorine) and industrial / water-treatment grades (~10 to 15 percent)

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 hypochlorite, see the CAS 7681-52-9 sourcing reference.

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

For the structure and history of REACH, see the 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

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