CAS 1313-13-9 · TSCA · United States of America

Manganese dioxide (MnO2) under TSCA

MnO2 · 二氧化锰

Status: Active. Manganese dioxide is on the TSCA Active Inventory. **NOT typically Cal Prop 65 listed at MnO2 level** (verify against OEHHA https://oehha.ca.gov/proposition-65/proposition-65-list before relying; specific manganese compounds such as methylcyclopentadienyl manganese tricarbonyl (MMT) are listed). **Historical US AD/CVD investigation A-570-919 / C-570-920 on Chinese-origin electrolytic manganese dioxide (EMD); verify current AD/CVD status + cash-deposit rate at customs against https://access.trade.gov/ before invoicing**; the cash-deposit rate at customs is the operative number, not the original investigation rate.

Manganese dioxide is TSCA-Active with **historical US AD/CVD on Chinese-origin EMD A-570-919 / C-570-920; verify current cash-deposit rate per producer at access.trade.gov before invoicing**. OSHA PEL 5 mg/m3 ceiling for manganese compounds. **Alkaline + Zn-C battery cathode ~70 to 80% + ferromanganese steel ~10 to 15% downstream chains**. **AD/CVD on EMD is the practical US-import compliance pivot.**

Listing and threshold

Substance Manganese dioxide (MnO2) (CAS 1313-13-9), MnO2
Regime US Toxic Substances Control Act (TSCA), administered by EPA
Jurisdiction United States of America
Status Active
Tonnage threshold TSCA Section 8(a) Chemical Data Reporting (CDR) at >25,000 lb/year per US site

Classifications under this regime

  • TSCA Active Inventory
  • **Historical US AD/CVD investigation A-570-919 (AD) / C-570-920 (CVD) on Chinese-origin electrolytic manganese dioxide (EMD); verify current AD/CVD status + cash-deposit rate per producer at https://access.trade.gov/ before relying**
  • OSHA PEL: manganese compounds 5 mg/m3 ceiling under 29 CFR 1910.1000 Table Z-1 (verify against https://www.osha.gov/annotated-pels before relying)
  • NIOSH REL: 1 mg/m3 8-hr TWA + 3 mg/m3 STEL for manganese compounds (verify against current https://www.cdc.gov/niosh/npg/)
  • ACGIH TLV-TWA: 0.02 mg/m3 respirable + 0.1 mg/m3 inhalable for manganese (revised low reflecting neurotoxicity) (verify against current ACGIH TLV documentation at https://www.acgih.org/ before relying)
  • IARC: Manganese and inorganic manganese compounds NOT separately classified (verify against https://monographs.iarc.who.int/ before relying)
  • **NOT typically Cal Prop 65 listed at MnO2 level** (verify against https://oehha.ca.gov/proposition-65/proposition-65-list; specific Mn compounds such as MMT are listed)
  • DOT 49 CFR: NOT regulated as dangerous goods at solid form

Restrictions and conditions of use

  • **Historical US AD/CVD investigation A-570-919 / C-570-920 on Chinese-origin EMD; verify current cash-deposit rate at customs per producer against https://access.trade.gov/ before invoicing**
  • OSHA PEL 5 mg/m3 ceiling (manganese compounds, 29 CFR 1910.1000 Table Z-1)
  • No CBP-specific restriction beyond AD/CVD scope determination and HS 282010
  • EPA TRI (Toxic Release Inventory) reporting for manganese + manganese compounds (verify against https://www.epa.gov/toxics-release-inventory-tri-program)

Importer obligations

TSCA Section 13 import certification (positive). **Historical US AD/CVD investigation A-570-919 / C-570-920 on Chinese-origin EMD: verify current cash-deposit rate per producer at https://access.trade.gov/ before invoicing.** Major non-Chinese producers: Tronox / Cristal (Australia Woodie Woodie EMD), Tosoh (Japan Yamaguchi), Mitsui (Japan), Erachem Comilog (USA Baltimore + Belgium). Major Chinese exporters where AD-licensable: Citic Dameng Mining (Guangxi Daxin), Guizhou Redstar Developing, Hunan Tongren, Xiangtan Electrochemical Scientific, Guangxi Tianyuan.

Required documents

  • TSCA Section 13 import certification
  • CBP entry HS 282010 (manganese dioxide)
  • SDS (Acute Tox. 4 oral + Acute Tox. 4 inhalation + STOT RE 1 nervous-system / lungs)
  • **AD/CVD entry summary CBP Form 7501 with current cash-deposit rate per producer where Chinese-origin EMD (verify against https://access.trade.gov/)**
  • EPA TRI reporting documentation for manganese compounds where placed on US site at threshold

Common compliance traps

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

  • **Historical US AD/CVD investigation A-570-919 (AD) / C-570-920 (CVD) on Chinese-origin EMD; verify current cash-deposit rate per producer at access.trade.gov before invoicing; the cash-deposit rate at customs is the operative number, not the original investigation rate**
  • OSHA PEL 5 mg/m3 ceiling (manganese compounds, 29 CFR 1910.1000 Table Z-1) + NIOSH REL 1 mg/m3 + ACGIH TLV-TWA 0.02 mg/m3 respirable (revised low reflecting manganese-induced neurotoxicity / "manganism")
  • EPA TRI reporting for manganese + manganese compounds
  • **Alkaline + Zn-C dry-cell battery cathode active material ~70 to 80% of US consumption + ferromanganese steel deoxidiser / desulfuriser ~10 to 15% downstream chains**
  • NOT regulated as dangerous goods at solid form

Where to read next

For substance-level identifiers (formula, molecular weight, SMILES, InChIKey), GHS hazard profile, IMDG transport class, and full sourcing reference for manganese dioxide (mno2), see the CAS 1313-13-9 sourcing reference.

For grade-by-grade buying notes, freight maths, supplier-tier pricing, and a worked landed-cost example, the manganese dioxide (mno2) cornerstone hub covers the full sourcing chain.

For the structure and history of TSCA, see the TSCA 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

5 pages across the Sourzi moat

This term shows up in 4 regulatory pages, 1 CAS profiles. Sample backlinks per content type below.

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