Ingredient Dictionary

TRIPHENYL PHOSPHATE

Triphenyl phosphate is an aryl phosphate resulting from the formal condensation of phosphoric acid with 3 mol eq.

How much products actually contain

No product states its amount yet.

Of the products containing it, 259 list it before the 1% line and 0 after it (usually 1% or less).

Products using this ingredient

12 of 259 confirmed · likeliest to carry enough first · See all 259

Definition

Triphenyl phosphate is an aryl phosphate resulting from the formal condensation of phosphoric acid with 3 mol eq. of phenol. It has a role as a plasticiser and a flame retardant. It is functionally related to a phenol.

Source: PubChem

US FDA substance register · UNII YZE19Z66EA · registered name TRIPHENYL PHOSPHATE · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Triphenyl Phosphate is the organic compound that conforms to the formula:

Cosmetic roles

Keeps a film flexiblePLASTICISER

Safety & regulatory references

Banned: European Union

Source: EU Cosmetics Regulation

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

Source: Korea toxic substances GHS register (NIER)

EU Cosmetics Regulation, Annex II (prohibited substances), entry 1767

Source: EU prohibited substances (Annex II)

Reviewed by CIR: Safety Assessment of Triphenyl Phosphate as Used in Cosmetics

Source: US Cosmetic Ingredient Review (CIR)

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

Official labels & definitions

JCIA labelling name トリフェニルリン酸: 本品は、リン酸（＊）とフェノール（＊）とのトリエステルであり、次の化学式で表される。

Source: JCIA labelling names (Japan)

Names & identifiers

TRIPHENYL PHOSPHATEINCI트라이페닐포스페이트Korean label name (MFDS standard)Phosphoric acid, triphenyl esterSynonymトリフェニルリン酸Japanese labelling name

CAS No.chemical registry number: 115-86-6
EC No.EU chemical inventory number: 204-112-2
DTXSIDUS EPA chemical ID: DTXSID1021952
DTXCIDUS EPA compound ID: DTXCID201952

IUPAC: Triphenyl phosphate
Molecular formula: C18H15O4P
Molecular weight: 326.288 g/mol

Measured properties

Appearance: Triphenyl phosphate appears as colorless crystals. (NTP, 1992) · Other Solid, Dry Powder, CBI, Liquid
Odour: Odorless · Phenol-like odor
Boiling point: 473 °F at 11 mmHg (NTP, 1992) · BP: 245 °C at 11 mm Hg
Melting point: 122 to 124 °F (NTP, 1992) · 49.39 °C
Solubility: Insoluble (NTP, 1992) · In water, 1.9 mg/L at 25 °C
Density: 1.2055 (NTP, 1992) - Denser than water, will sink · Density: 1.2055 g/cu cm at 50 °C
Colour: colourless
Melting/freezing point: 49.39 ℃
Initial boiling point and range: 370 ℃
Flash point: 220 ℃(c.c.)
Vapour pressure: 0.000002 ㎜Hg(25℃)
Water solubility: 1.9 ㎎/ℓ(25℃)
Vapour density: 1.19
Relative density: 1.2055 (50℃)
n-Octanol/water partition coefficient (Kow): 4.59
Molecular weight: 326.29

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 38 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.

Flame retardant16
Plasticizer13
Processing aids not otherwise specified3
Binder2
Lubricating agent2
Hydraulic fluids2

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

5 skin studies and 4 eye studies are on record.

Classed as low4

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 9 studies

Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to
Not classified
Skin Irritation · Screening
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to OECD Guideline 406 (Skin Sensitisation)
Classification not possible
Skin Sensitization · Screening
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to
Moderate or Mild Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) equivalent or similar to
Category 2B
Eye Irritation · Screening
Category 6.4A (Category 2A)
Eye Irritation · Read Across