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Ingredient Dictionary

AMMONIA

Ammonia is an azane that consists of a single nitrogen atom covelently bonded to three hydrogen atoms.

Korean limit
6%
Molecular structure

How much products actually contain

No product states its amount yet.

Of the products containing it, 4 list it before the 1% line and 15 after it (usually 1% or less).

Products using this ingredient

12 of 19 confirmed · likeliest to carry enough first · See all 19

Definition

Ammonia is an azane that consists of a single nitrogen atom covelently bonded to three hydrogen atoms. It has a role as a NMR chemical shift reference compound, a metabolite, a neurotoxin, a nucleophilic reagent, a mouse metabolite, an EC 3.5.1.4 (amidase) inhibitor and a refrigerant. It is a gas molecular entity, an azane and a mononuclear parent hydride. It is a conjugate base of an ammonium. It is a conjugate acid of an azanide.

Source: PubChem

Cosmetic roles

Listed as a fragrance-composition material (not a claim that it adds scent)FRAGRANCEKeeps pH steadyBUFFERING

Safety & regulatory references

Restricted
United Kingdom

Source: ASEAN Cosmetic Directive · EU Cosmetics Regulation · MFDS (Korea) cosmetic regulatory information · Taiwan FDA cosmetic ingredients · Taiwan FDA cosmetic regulations · UK cosmetics regulations (OPSS)

Argentina · Brazil

  • Maximum concentration permitted at final product : 6% calculated as NH3
  • Use conditions and warnings that must appear on the label : Above 2%: contains ammonia

ASEAN

  • Maximum authorised concentration in the finished cosmetic product : 6% calculated as NH3
  • Conditions of use and warning which must be printed on the labels : Above 2%: Contains ammonia

Taiwan

  • 6%

China · South Korea

  • Maximum concentration : 6%

European Union

  • Maximum concentration in ready for use preparation : 6% (as NH3)
  • Wording of conditions of use and warnings : Above 2%: Contains ammonia

Source: MFDS (Korea) cosmetic regulatory information

Korea’s toxic-substance GHS classification: Danger · H400 (category 1) · H314 (category 1) · H331 (category 3) · +2 more

Source: Korea toxic substances GHS register (NIER)

EU Cosmetics Regulation, Annex III (restricted substances), entry 4 · maximum concentration 6% (as NH3)

Source: EU restricted substances (Annex III)

Restriction III/4

Source: EU CosIng ingredient list

Reviewed by CIR: Final Report: Safety Assessment of Ammonia and Ammonium Hydroxide as Used in Cosmetics

Source: US Cosmetic Ingredient Review (CIR)

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

Official labels & definitions

JCIA labelling name アンモニア: 本品は、次の化学式で表される気体である。

Source: JCIA labelling names (Japan)

Names & identifiers

AMMONIAINCI암모니아Korean label name (MFDS standard)アンモニアJapanese labelling name
CAS No.chemical registry number
7664-41-7
EC No.EU chemical inventory number
231-635-3
DTXSIDUS EPA chemical ID
DTXSID0023872
DTXCIDUS EPA compound ID
DTXCID803872
IUPAC
Ammonia
Molecular formula
H3N
Molecular weight
17.031 g/mol

Measured properties

Appearance
Ammonia solutions (containing more than 35% but not more than 50% ammonia) appears as a clear colorless liquid consisting of ammonia dissolved in water. Corrosive to tissue and metals. Although ammonia is lighter than air, the vapors from a leak will initially hug the ground. Long term exposure to low concentrations or short term exposure to high concentrations may result in adverse health conditi · Ammonia, anhydrous appears as a clear colorless gas with a strong odor. Shipped as a liquid under its own vapor pressure. Density (liquid) 6 lb / gal. Contact with the unconfined liquid can cause frostbite. Gas generally regarded as nonflammable but does burn within certain vapor concentration limits and with strong ignition. Fire hazard increases in the presence of oil or other combustible materi
Odour
Sharp, cloying, repellent · Pungent, suffocating odor
Boiling point
-28.03 °F at 760 mmHg (EPA, 1998) · -33.4
Melting point
-107.9 °F (EPA, 1998) · -77.7
Solubility
34 % (NIOSH, 2024) · In water, 4.82X10+5 mg/L at 24 °C
Colour
colourless
Odour threshold
17 ppm
pH
11.6 (1.0N aqueous solution)
Melting/freezing point
-78 ℃(@760 mmHg)
Initial boiling point and range
-33.35 ℃(@760 mmHg)
Flash point
132 ℃
Flammability (solid, gas)
flammable
Upper/lower flammability or explosive limits
15 / 33.6 %
Vapour pressure
1013 ㎪(26℃)
Water solubility
54 g/100㎖(20℃)
Vapour density
0.59
Relative density
0.7 (-33℃)
n-Octanol/water partition coefficient (Kow)
0.23
Auto-ignition temperature
651 ℃
Decomposition temperature
382.8 ℃
Viscosity
0.255 cP
Molecular weight
17.03

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 81 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.

  • pH regulating agent16
  • Preservative13
  • Processing aids not otherwise specified11
  • Cleaning agent4
  • Intermediate4
  • Chemical reaction regulator4
  • Soil amendments4
  • Catalyst3
16 other uses
  • Flavouring and nutrient3
  • Reducing agent2
  • Deodorizer2
  • Energy releasers (explosives, motive propellant)2
  • Solids separation (precipitating) agent, not other2
  • Monomers1
  • Dispersing agent1
  • Biocide1
  • Surface modifier1
  • Fragrance1
  • Flotation agent1
  • Solvent1
  • Binder1
  • Pharmaceutical (EPA)1
  • Refrigerants1
  • Defoamer1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

8 skin studies and 3 eye studies are on record.

Classed as highly irritating1

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 11 studies
  • Category 8.2B (Category 1B)
    Skin Irritation · Read Across
  • Skin corrosion/irritation - Category 1
    Skin Irritation · Screening
  • Corrosive
    skin irritation: in vivo · Screening · no guideline followed OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to
  • Skin Corr. 1B
    Skin Irritation · Authoritative
  • Skin Corr. 1B
    Skin Irritation · Screening
  • Corrosive
    skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to
  • Category 1
    Skin Irritation · Screening
  • Classification not possible
    Skin Sensitization · Screening
  • Eye Dam. 1
    Eye Irritation · Screening
  • Category 8.3A (Category 1)
    Eye Irritation · Read Across
  • Category 1
    Eye Irritation · Screening

Source: US EPA CompTox dashboard

Related literature

Linked databases 27

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