Slimes and Sludges, copper refining

CAS 67712-00-9

Used in 1 industrial sector tracked by the EPA.

US production704.0K lb

Import value, 2024$4M

Import volumeZero

Import dependency0%

Top sourceCanada 93%

Production is reported production, not a complete census of factories. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 262030 · narrow

EPA reports by year

2023: US production 704.0K lb · Imports Zero
2019: US production 943.9K lb · Imports Zero

These shares come from HS customs code 262030, which covers 3 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

CA 93%CanadaMX 4%MexicoDE 2%GermanyES 2%Spain

EPA-registered manufacturers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Freeport-Mcmoran

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Freeport-Mcmoran Miami

Why It Matters

Sectors

Metals & Mining

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

Used in 2 sectors as 1 functional role.

•Intermediate in Primary Metal Manufacturing (100%)Processing as a reactant
•Intermediate in Mining (except Oil and Gas) and support activities (100%)Processing as a reactant

Chemical Identity

CAS67712-00-9

PubChem CIDNot recorded

DTXSIDDTXSID1095795

FormulaNot recorded

Mol. WeightNot recorded

SMILESNot recorded

Data Sources

EPA CompTox (DSSTox) · DTXSID1095795Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Slimes and Sludges, copper refining (CAS 67712-00-9) https://chemicalindependence.com/chemical/67712-00-9/ EPA CompTox (DSSTox): DTXSID1095795. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1095795 EPA Chemical Data Reporting: 67712-00-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 67712-00-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 262030 for CAS 67712-00-9. Reporting year: 2024. https://usatrade.census.gov/