Ingredient Dictionary

ZINC

Zinc atom is a zinc group element atom.

How much products actually contain

No product states its amount yet.

Of the products containing it, 1 list it before the 1% line and 3 after it (usually 1% or less).

Products using this ingredient

4 of 4 confirmed · likeliest to carry enough first

Definition

Zinc atom is a zinc group element atom. It has a role as a micronutrient.

Source: PubChem

US FDA substance register · UNII J41CSQ7QDS · registered name Zinc · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Slows spoilage by oxygenANTIOXIDANT

Safety & regulatory references

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

Source: Korea toxic substances GHS register (NIER)

Other restriction: ban substances that deplete the ozone layer

Source: EU CosIng ingredient list

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

Official labels & definitions

JCIA labelling name 亜鉛: 本品は、金属元素Ｚn である。

Source: JCIA labelling names (Japan)

Names & identifiers

ZINCINCI아연Korean label name (MFDS standard)亜鉛Japanese labelling name

CAS No.chemical registry number: 7440-66-6
EC No.EU chemical inventory number: 231-175-3
DTXSIDUS EPA chemical ID: DTXSID7035012
DTXCIDUS EPA compound ID: DTXCID004384

IUPAC: Zinc
Molecular formula: Zn
Molecular weight: 65.38 g/mol

Measured properties

Appearance: Zinc ashes appears as a grayish colored powder. May produce toxic zinc oxide fumes when heated to very high temperatures or when burned. Insoluble in water. Used in paints, bleaches and to make other chemicals. · Zinc dust appears as a grayish powder. Insoluble in water. May produce toxic zinc oxide fumes when heated to very high temperatures or when burned. Used in paints, bleaches and to make other chemicals.
Boiling point: 907 · 907 °C
Melting point: 419 · 787 °F
Solubility: Soluble in acids and alkalies, insoluble in water · Solubility in water: reaction
Density: 7.133 g/cu cm at 25 °C, 6.830 g/cu cm at 419.5 °C (solid), 6.620 g/cu cm at 419.5 °C (liquid), 6.250 g/cu cm at 800 °C · 7.1 g/cm³
Stability: Stable in dry air, becomes covered with white coating of basic carbonate on exposure to moist air. · Zinc is attacked by carbon dioxide & sulfur dioxide resulting chiefly in a coating of hydrated basic carbonate of variable composition, hydrogen peroxide may be formed in the process
Colour: grey
Odour: odourless
Melting/freezing point: 411~420 ℃
Initial boiling point and range: 907 ℃
Flammability (solid, gas): not flammable
Vapour pressure: 0 ㎩(400 K)
Water solubility: 0.1 ㎎/ℓ(20℃, pH: 6.93~8.57)
Vapour density: 6.9
Relative density: 7.14
n-Octanol/water partition coefficient (Kow): -0.47 (est.)
Auto-ignition temperature: 460 ℃
Viscosity: &amp, gt, 500 mPa S

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 61 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.

Corrosion inhibitor11
Pigment9
Plating agent7
Degradant/impurity (EPA)6
Processing aids not otherwise specified4
Intermediate3
Surface modifier3
Hardener2

14 other uses

Soil amendments2
Bleaching agent2
Conductive agent1
Antioxidant1
Filler1
Lubricating agent1
Sealant (barrier)1
Adhesion/cohesion promoter1
No specific technical function1
Heat stabilizer1
Solvent1
Catalyst1
Preservative1
Cleaning agent1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

2 skin studies and 2 eye studies are on record.

Classed as low2

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 4 studies

Not classified
Skin Sensitization · Screening
Not classified
Skin Irritation · Screening
Moderate or Mild Irritation
eye irritation: in vivo · Screening · EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion) according to OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to
Category 2B
Eye Irritation · Screening