Ingredient Dictionary

CUPRIC OXIDE

Copper(II) oxide is a metal oxide that has the formula CuO.

Definition

Copper(II) oxide is a metal oxide that has the formula CuO. It has an ionic structure. It contains a copper(2+).

Source: PubChem

US FDA substance register · UNII V1XJQ704R4 · registered name CUPRIC OXIDE · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cupric Oxide is the inorganic oxide that conforms to the formula

Cosmetic roles

Inhibits microbial growthANTIMICROBIAL

Safety & regulatory references

Korea’s toxic-substance GHS classification: Warning · H410 (category 1) · H400 (category 1)

Source: Korea toxic substances GHS register (NIER)

More data — names, identifiers, properties, test records, literature

Names & identifiers

CUPRIC OXIDEINCICopper oxide (CuO)Synonym

CAS No.chemical registry number: 1317-38-0
DTXSIDUS EPA chemical ID: DTXSID5034488
DTXCIDUS EPA compound ID: DTXCID101333885

IUPAC: Copper(2+) oxide
Molecular formula: CuO
Molecular weight: 79.545 g/mol

Measured properties

Appearance: Dry Powder, Large Crystals, Other Solid, Wet Solid, CBI · Steel-grey to black solid, [Merck Index] Black odorless powder, [Alfa Aesar MSDS]
Boiling point: Decomposes at 1026 · 1026 °C (decomp)
Melting point: Decomposes at 1326 · 1326 °C
Solubility: Insoluble · Practically insol in water, alc, sol in dilute acids, alkali cyanides, ammonium carbonate soln, slowly sol in ammonia
Density: 6.315 @ 14 °C/4 °C · 6.4 @25 °C
Odour: odourless
Melting/freezing point: 1326 ℃
Initial boiling point and range: 1026 ℃
Water solubility: 0 g/ℓ(20℃, pH: 6)
Vapour density: 6.31
Relative density: 6.315 (14/4℃)
Decomposition temperature: 1026 ℃
Molecular weight: 79.55

Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.

Source: PubChem · KOSHA safety data sheets (Korea)

What products actually use it for

What the 20 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

Intermediate3
Propellants, non-motive (blowing agents)2
Oxidizing agent2
Filler2
Etching agent2
Soil amendments2
Pigment1
Biocide1

5 other uses

Catalyst1
Plating agent1
Chemical reaction regulator1
Adsorbent1
Processing aids not otherwise specified1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

4 skin studies and 3 eye studies are on record.

Classed as low3

The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 7 studies

Category 1A
Skin Sensitization · Screening
Not classified
Skin Irritation · Screening
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to EU Method B.6 (Skin Sensitisation) according to OECD Guideline 406 (Skin Sensitisation)
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion) according to
Category 6.4A (Category 2A)
Eye Irritation · Read Across
Classification not possible
Eye Irritation · Screening
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion) according to