Ingredient Dictionary

AQUA

Water is an oxygen hydride consisting of an oxygen atom that is covalently bonded to two hydrogen atoms.

How much products actually contain

9 products state the amountmedian 0.1%

under 0.01% 0
0.01–0.1% 1
0.1–1% 5
1% or more 3

Amounts are mostly stated by products named after the ingredient, so they may lean towards token amounts.

Of the products containing it, 11,073 list it before the 1% line and 656 after it (usually 1% or less).

Products using this ingredient

12 of 11,558 confirmed · likeliest to carry enough first · See all 11,558

Definition

Water is an oxygen hydride consisting of an oxygen atom that is covalently bonded to two hydrogen atoms. It has a role as an amphiprotic solvent, a mouse metabolite, a Saccharomyces cerevisiae metabolite, a member of greenhouse gas, an Escherichia coli metabolite and a human metabolite. It is an oxygen hydride, a mononuclear parent hydride and an inorganic hydroxy compound. It is a conjugate base of an oxonium. It is a conjugate acid of a hydroxide.

Source: PubChem

Water

Cosmetic roles

Base that dissolves other ingredientsSOLVENTPrevents plaqueANTIPLAQUEKeeps skin in good condition (CosIng catch-all)SKIN CONDITIONING

Safety & regulatory references

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

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 水: 本品は、次の化学式で表される液状物質である。

Source: JCIA labelling names (Japan)

Names & identifiers

AQUAINCI정제수Korean label name (MFDS standard)WaterSynonym

CAS No.chemical registry number: 7732-18-5
EC No.EU chemical inventory number: 231-791-2
EC No.EU chemical inventory number: 231-791-2 (I)
DTXSIDUS EPA chemical ID: DTXSID6026296
DTXCIDUS EPA compound ID: DTXCID106296

IUPAC: Water
Molecular formula: H2O
Molecular weight: 18.015 g/mol

Measured properties

Appearance: liquid · Water appears as a clear, nontoxic liquid composed of hydrogen and oxygen, essential for life and the most widely used solvent. Include water in a mixture to learn how it could react with other chemicals in the mixture.
Colour: colourless
Odour: odourless · Odorless
pH: 7
Melting/freezing point: 0 ℃
Initial boiling point and range: 100 ℃
Vapour pressure: 23.8 ㎜Hg (25℃)
Water solubility: 100 g/100㎖
Relative density: 1
n-Octanol/water partition coefficient (Kow): -1.38
Molecular weight: 18.02
Boiling point: 212 °F at 760 mmHg · 100
Melting point: 32 °F · 0
Solubility: Completely miscible · Water dissolves some amount of virtually every solid or gas with wich it comes in contact.
Density: 1 · 0.9950 g/cu cm at 25 °C
Viscosity: Dynamic viscosity: 0.8949 cP at 25 °C, Kinematic viscosity: 0.8976 cP at 25 °C

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: KOSHA safety data sheets (Korea) · PubChem

What products actually use it for

What the 4,348 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.

Solvent2,187
Diluent1,637
Processing aids not otherwise specified264
Binder59
Foamant30
Filler24
Fragrance19
Degradant/impurity (EPA)16

28 other uses

Solubility enhancer15
Adhesion/cohesion promoter10
Defoamer10
Thickening agent9
Catalyst7
Dye7
Humectant6
Propellants, non-motive (blowing agents)5
Anti-adhesive/cohesive5
Viscosity modifier5
Cleaning agent4
Soil amendments3
Dispersing agent3
Preservative3
Intermediate2
Wetting agent (non-aqueous)2
Surfactant (surface active agent)2
Lubricating agent2
Sealant (barrier)2
Chelating agent2
Astringent (EPA)1
Pigment1
Pharmaceutical excipient (EPA)1
Surface modifier1
Pharmaceutical (EPA)1
Emulsifier1
Flow promoter1
Softener and conditioner1

Source: US EPA CompTox dashboard