What is this ingredient?

미국 FDA 물질 등록 · UNII 9SW4PFD2FZ · 등록명 SODIUM TRIPOLYPHOSPHATE ANHYDROUS · 단일 화학물질

All ingredients

Ingredient Dictionary

PENTASODIUM TRIPHOSPHATE

How much products actually contain

No product states its amount yet.

Of the products containing it, 0 list it before the 1% line and 13 after it (usually 1% or less).

Products using this ingredient

12 of 13 confirmed · likeliest to carry enough first · See all 13

Definition

US FDA substance register · UNII 9SW4PFD2FZ · registered name SODIUM TRIPOLYPHOSPHATE ANHYDROUS · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Keeps pH steadyBUFFERINGBinds metal ions to prevent spoilageCHELATING

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

Reviewed by CIR: Safety Assessment of Phosphoric Acid and Its Salts as Used in Cosmetics

Source: US Cosmetic Ingredient Review (CIR)

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

Official labels & definitions

JCIA labelling name 三リン酸５Ｎａ: 本品は、次の化学式で表される無機塩である。

Source: JCIA labelling names (Japan)

Names & identifiers

PENTASODIUM TRIPHOSPHATEINCI펜타소듐트라이포스페이트Korean label name (MFDS standard)Triphosphoric acid, pentasodium saltSynonym三リン酸５ＮａJapanese labelling name

CAS No.chemical registry number: 7758-29-4
EC No.EU chemical inventory number: 231-838-7
DTXSIDUS EPA chemical ID: DTXSID9036307
DTXCIDUS EPA compound ID: DTXCID7016307

IUPAC: Pentasodium triphosphate
Molecular formula: Na5O10P3
Molecular weight: 367.86 g/mol

Measured properties

Colour: white
Odour: odourless
pH: 9.2 (9.2-10 at 1vol%)
Melting/freezing point: 620 ℃
Vapour pressure: 0.075 ㎜Hg (at 20℃)
Water solubility: 200000 ㎎/ℓ
Relative density: 2.52
n-Octanol/water partition coefficient (Kow): -2.71
Decomposition temperature: 622 ℃
Molecular weight: 367.86

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)

What products actually use it for

What the 159 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.

Chelating agent95
pH regulating agent13
Processing aids not otherwise specified5
Solvent4
Cleaning agent4
Softener and conditioner3
Surfactant (surface active agent)3
Dispersing agent3

19 other uses

Flavouring and nutrient3
Emulsifier2
Corrosion inhibitor2
Binder2
Ion exchange agent2
Dye2
Thickening agent2
Filler2
Anti-caking agent2
Preservative1
Drier1
Antioxidant1
Lubricating agent1
Pigment1
Foamant1
Oxidizing agent1
Humectant1
Other1
Surface modifier1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

3 skin studies and 3 eye studies are on record.

Classed as moderate6Classed as low4

The study conclusions largely agree (60%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 6 studies

Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to
Moderate or Mild Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to
Not likely to be sensitizing
skin sensitisation: in vivo (LLNA) · Screening · according to OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay)
Category 6.4A (Category 2A)
Eye Irritation · Read Across
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) equivalent or similar to
Moderate or Mild Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to