Ingredient Dictionary

ZIRCONIUM POWDER

Zirconium atom is a titanium group element atom.

Definition

Zirconium atom is a titanium group element atom.

Source: PubChem

US FDA substance register · UNII C6V6S92N3C · registered name ZIRCONIUM · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Zirconium Powder is a powdered metallic element

Cosmetic roles

Reduces sweatingANTIPERSPIRANT

Safety & regulatory references

Banned: Argentina · ASEAN · Brazil · China · European Union · South Korea · Taiwan · United States
Restricted or banned: Argentina · ASEAN · Brazil · China · European Union · Japan · South Korea · Taiwan · United States
Restricted: Japan · United States

Source: MFDS (Korea) cosmetic regulatory information · Japan Standards for Cosmetics · US eCFR cosmetics regulations

Canada

Conditions of Use by product type : Not permitted in aerosol dispensers. Permitted as aluminum zirconium complexes and as zirconium lakes, salts and pigments of colouring agents only. See also "Aluminum zirconium complexes".

Source: MFDS (Korea) cosmetic regulatory information

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

EU Cosmetics Regulation, Annex II (prohibited substances), entry 391

Source: EU prohibited substances (Annex II)

Restriction II/391

Source: EU CosIng ingredient list

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

Names & identifiers

ZIRCONIUM POWDERINCI지르코늄가루Korean label name (MFDS standard)ZirconiumSynonym

CAS No.chemical registry number: 7440-67-7
EC No.EU chemical inventory number: 231-176-9
DTXSIDUS EPA chemical ID: DTXSID0049818
DTXCIDUS EPA compound ID: DTXCID4029777

IUPAC: Zirconium
Molecular formula: Zr
Molecular weight: 91.224 g/mol

Measured properties

Appearance: Zirconium powder wet appears as a gray amorphous sludge with not less than 25% water. · Zirconium powder, dry appears as a gray amorphous powder. May ignite spontaneously and burn with explosive violence. Ignitable by static electricity. Small amounts of moisture may promote the ignition of zirconium. Continues to burn despite immersion in water and does so with greater intensity than in air. Used to make corrosion-resistant alloys, in pyrotechnics, and for many other uses.
Boiling point: 6471 °F at 760 mmHg (NIOSH, 2024) · 4406 °C
Melting point: 3375 °F (NIOSH, 2024) · 1854 °C
Solubility: Insoluble (NIOSH, 2024) · Soluble in hot concentrated acid
Density: 6.51 (Metal) (NIOSH, 2024) - Denser than water, will sink
Initial boiling point and range: 3577 ℃
Vapour density: 6.434 g/㎤
Relative density: 6.49
n-Octanol/water partition coefficient (Kow): -0.57 (est.)
Auto-ignition temperature: 389 ℃
Molecular weight: 91.224

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 5 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.

Antiperspirant (EPA)2
Intermediate1
Fuel agents1
Fuel1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

6 skin studies and 2 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 8 studies

Sah
Skin Sensitization · Authoritative
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to OECD Guideline 406 (Skin Sensitisation)
Classification not possible
Skin Irritation · Screening
Classification not possible
Skin Sensitization · Screening
Studies Indicate No Significant Irritation
skin corrosion: in vitro / ex vivo · Screening · OECD Guideline 439 (In Vitro Skin Irritation: Reconstructed Human Epidermis Test Method) according to
Corrosive or Irritation Persists for > 21 days
eye irritation: in vitro / ex vivo · Screening · OECD Guideline 438 (Isolated Chicken Eye Test Method for Identifying Ocular Corrosives and Severe Irritants) [before 26 July 2013] according to
Classification not possible
Eye Irritation · Screening