Food & Drink / Compounds / Copper(II) oxide (CuO), corrosion product

Copper(II) oxide (CuO), corrosion product in food: ingestion safety

Moderate risk

Not medical or professional safety advice, and not a substitute for a qualified clinician — consult one. Full disclaimer →

Low_to_moderate risk based on available hazard data.

What is copper(ii) oxide (cuo), corrosion product?

The IUPAC name is copper oxygen(2-).

Also known as: Copper oxide (CuO), Copper(2+) oxide, Copper monoxide, Cuprum oxydatum nigrum.

IUPAC name
copper oxygen(2-)
CAS number
1317-78-0
Molecular formula
Cu
Molecular weight
63.55 g/mol
SMILES
[O-2].[Cu+2]
PubChem CID
164827

Risk for people

Moderate risk

Low_to_moderate risk based on available hazard data.

Regulatory consensus

1 regulatory bodyhas classified Copper(II) oxide (CuO), corrosion product.

AgencyYearClassificationNotes
Unknown——

Regulators apply different standards of evidence — animal-data weighting, exposure-pattern assumptions, epidemiological power thresholds — which is why two scientific bodies can review the same data and reach different conclusions. The disagreement is the data.

Where you encounter copper(ii) oxide (cuo), corrosion product

  • Contaminated Water — Mining site runoff, Industrial discharge, Old infrastructure
  • Food Chain — Fish from contaminated waters, Crops in contaminated soil

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Copper(II) oxide (CuO), corrosion product:

  • Exposure reduction (no chemical substitute)
    Trade-offs: Exposure reduction does not eliminate the hazard but lowers risk to acceptable levels when alternatives are not available or practical. Requires ongoing monitoring and compliance.
    Relative cost: 1.2-2×

Frequently asked questions

Is copper(ii) oxide (cuo), corrosion product safe for you?

Low_to_moderate risk based on available hazard data.

What products contain copper(ii) oxide (cuo), corrosion product?

Copper(II) oxide (CuO), corrosion product appears in: Mining site runoff (Contaminated water); Industrial discharge (Contaminated water); Fish from contaminated waters (Food chain); Crops in contaminated soil (Food chain).

See Copper(II) oxide (CuO), corrosion product in the food app

Look up products containing copper(ii) oxide (cuo), corrosion product, compare to alternatives, and explore the full data record.

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Sources (1)
  1. ATSDR Toxicological Profile — CAS 1317-78-0 — reference

Reference data, not professional advice. Aggregates publicly available regulatory and scientific data; not a substitute for medical, legal, or regulatory advice. Why we built ALETHEIA →