Definition
US FDA substance register · UNII 7DE9CA6IL2 · registered name Cuprous iodide · single chemical substance
Cosmetic roles
Safety & regulatory references
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
More data — names, identifiers, properties, test records, literature
Names & identifiers
- CAS No.chemical registry number
- 7681-65-4
- EC No.EU chemical inventory number
- 231-674-6
- DTXSIDUS EPA chemical ID
- DTXSID5041803
- DTXCIDUS EPA compound ID
- DTXCID3021803
- IUPAC
- Copper(1+) iodide
- Molecular formula
- CuI
- Molecular weight
- 190.45 g/mol
Measured properties
- Appearance
- CBI, Large Crystals, Other Solid, Dry Powder · White to brownish-yellow solid, [Hawley] Insoluble in water, [Ullmann] White to light brown powder chunks with a weak odor, [Alfa Aesar MSDS]
- Boiling point
- About 1290 °C
- Melting point
- 606 °C
- Solubility
- Insoluble in dilute acid solutions · Dissolves in ammonia solution, alkali iodide and cyanide solutions, and dilute hydrochloric acid
- Density
- 5.67
- Stability
- It is generally stable in air & is less photosensitive than the chloride or bromide.
- Odour
- odourless
- Melting/freezing point
- 591 ℃
- Flammability (solid, gas)
- not flammable
- Vapour pressure
- 10 ㎜Hg (656℃)
- Water solubility
- 0.2 ㎎/ℓ (20℃)
- Vapour density
- 5.67 g/㎤
- Relative density
- 5.67
- Molecular weight
- 190.46
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 9 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.
- Antioxidant2
- Heat stabilizer2
- Biocide1
- Catalyst1
- Stabilizing agent1
- Deodorizer1
- Ion exchange agent1
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
3 skin studies and 2 eye studies are on record.
The studies disagree (the most common conclusion covers 50%), so they do not establish that this ingredient is irritating. These tests are on the raw material itself; irritation at the amount in a finished product is a different question.
See all 5 studies
- Category 3
Skin Irritation · Screening - High Frequency of Sensitization
skin sensitisation: in vivo (non-LLNA) · Screening · according to OECD Guideline 406 (Skin Sensitisation) according to EU Method B.6 (Skin Sensitisation) - Classification not possible
Skin Sensitization · Screening - Category 2B
Eye Irritation · Screening - Corrosive or Irritation Persists for > 21 days
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
Source: US EPA CompTox dashboard
Related literature
Linked databases 14
- Australian Industrial Chemicals Inventory (AICIS)
- EU CosIng ingredient list 2
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- NIST Chemistry WebBook
- PubChem
- PubMed
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata
- Wikipedia · Korean · English · Japanese · Chinese